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Refs #400, #431. Added timeout functionality to break out of loops when waiting for hardware acknowledgements. 

git-svn-id: https://svn.code.sf.net/p/openblt/code/trunk@482 5dc33758-31d5-4daf-9ae8-b24bf3d40d73
This commit is contained in:
Frank Voorburg 2018-04-25 13:49:24 +00:00
parent eab505d95c
commit 32d3ef07df
27 changed files with 560 additions and 60 deletions
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13
Target/Source/ARM7_LPC2000/can.c
View File

@ -37,6 +37,8 @@
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/** \brief Transmit buffer 1 idle bit. */
#define CAN_TBS1 (0x00000004)
/** \brief Transmit buffer 1 complete bit. */
@ -214,6 +216,8 @@ void CanInit(void)
****************************************************************************************/
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int32u timeout;
/* check that transmit buffer 1 is ready to accept a new message */
ASSERT_RT((CAN1SR & CAN_TBS1) != 0);
/* write dlc and configure message as a standard message with 11-bit identifier */
@ -234,11 +238,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
CAN1TDB1 = (data[7] << 24) + (data[6] << 16) + (data[5] << 8) + data[4];
/* write transmission request for transmit buffer 1 */
CAN1CMR = CAN_TR | CAN_STB1;
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((CAN1SR & CAN_TCS1) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

18
Target/Source/ARM7_LPC2000/uart.c
View File

@ -41,7 +41,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/** \brief Divisor latch access bit. */
#define UART_DLAB (0x80)
@ -261,6 +262,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if ((U0LSR & UART_THRE) == 0)
{
@ -269,14 +273,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
U0THR = data;
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while ((U0LSR & UART_THRE) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

21
Target/Source/ARMCM0_STM32F0/can.c
View File

@ -35,6 +35,13 @@
#if (BOOT_COM_CAN_ENABLE > 0)
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/****************************************************************************************
* Type definitions
****************************************************************************************/
@ -186,8 +193,9 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
CanTxMsg txMsg;
uint8_t byteIdx;
uint8_t txMailbox;
blt_int8u byteIdx;
blt_int8u txMailbox;
blt_int32u timeout;
/* prepare message */
if ((BOOT_COM_CAN_TX_MSG_ID & 0x80000000) == 0)
@ -210,11 +218,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
txMsg.Data[byteIdx] = data[byteIdx];
}
txMailbox = CAN_Transmit(CAN, &txMsg);
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while (CAN_TransmitStatus(CAN, txMailbox) == CAN_TxStatus_Pending)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

21
Target/Source/ARMCM0_STM32F0/uart.c
View File

@ -41,6 +41,9 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/* map the configured UART channel index to the STM32's USART peripheral */
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to USART1. */
@ -241,6 +244,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
@ -249,13 +255,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
USART_SendData(USART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

17
Target/Source/ARMCM0_XMC1/can.c
View File

@ -39,6 +39,9 @@
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/** \brief Macro for accessing the CAN channel handle in the format that is expected
* by the XMClib CAN driver.
*/
@ -108,11 +111,15 @@ void CanInit(void)
while (canModuleFreqHz < 12000000)
{
canModuleFreqHz *= 2;
/* keep the watchdog happy */
CopService();
}
/* decrease if too high */
while (canModuleFreqHz > 120000000)
{
canModuleFreqHz /= 2;
/* keep the watchdog happy */
CopService();
}
/* configure CAN module*/
@ -216,6 +223,7 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int8u byteIdx;
blt_int32u timeout;
/* copy message data */
transmitMsgObj.can_data_length = len;
@ -229,11 +237,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
XMC_CAN_MO_ResetStatus(&transmitMsgObj, XMC_CAN_MO_RESET_STATUS_TX_PENDING);
/* submit message for transmission */
XMC_CAN_MO_Transmit(&transmitMsgObj);
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((XMC_CAN_MO_GetStatus(&transmitMsgObj) & XMC_CAN_MO_STATUS_TX_PENDING) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

21
Target/Source/ARMCM0_XMC1/uart.c
View File

@ -42,6 +42,9 @@
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/** \brief Macro for accessing the UART channel handle in the format that is expected
* by the XMClib UART driver.
*/
@ -230,6 +233,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx fifo can accept new data */
if (XMC_USIC_CH_TXFIFO_IsFull(UART_CHANNEL) != 0)
{
@ -238,15 +244,24 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* submit data for transmission */
XMC_UART_CH_Transmit(UART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for transmission to be done */
while( (XMC_USIC_CH_TXFIFO_GetEvent(UART_CHANNEL) & XMC_USIC_CH_TXFIFO_EVENT_STANDARD) == 0)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* reset event */
XMC_USIC_CH_TXFIFO_ClearEvent(UART_CHANNEL, XMC_USIC_CH_TXFIFO_EVENT_STANDARD);
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

15
Target/Source/ARMCM3_EFM32/uart.c
View File

@ -44,6 +44,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/****************************************************************************************
@ -223,6 +225,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if ((LEUART1->STATUS & LEUART_STATUS_TXBL) == 0)
{
@ -236,9 +241,15 @@ static blt_bool UartTransmitByte(blt_int8u data)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

12
Target/Source/ARMCM3_LM3S/can.c
View File

@ -43,6 +43,8 @@
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/** \brief Index of the used reception message object. */
#define CAN_RX_MSGOBJECT_IDX (0)
/** \brief Index of the used transmission message object. */
@ -167,6 +169,7 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int32u status;
tCANMsgObject msgObject;
blt_int32u timeout;
/* get bitmask of message objects that are busy transmitting messages */
status = CANStatusGet(CAN0_BASE, CAN_STS_TXREQUEST);
@ -184,12 +187,21 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
msgObject.ulMsgLen = len;
msgObject.pucMsgData = data;
CANMessageSet(CAN0_BASE, CAN_TX_MSGOBJECT_IDX+1, &msgObject, MSG_OBJ_TYPE_TX);
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* now wait for the transmission to complete */
do
{
status = CANStatusGet(CAN0_BASE, CAN_STS_TXREQUEST);
/* service the watchdog */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
while ((status & canBitNum2Mask[CAN_TX_MSGOBJECT_IDX]) != 0);
} /*** end of CanTransmitPacket ***/

17
Target/Source/ARMCM3_LM3S/uart.c
View File

@ -46,6 +46,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/****************************************************************************************
@ -209,20 +211,31 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* write byte to transmit holding register */
if (UARTCharPutNonBlocking(UART0_BASE, data) == false)
{
/* tx holding register can accept new data */
return BLT_FALSE;
}
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (UARTSpaceAvail(UART0_BASE) == false)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

42
Target/Source/ARMCM3_STM32F1/can.c
View File

@ -34,6 +34,16 @@
#if (BOOT_COM_CAN_ENABLE > 0)
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for entering/leaving CAN initialization mode in milliseconds. */
#define CAN_INIT_TIMEOUT_MS (250u)
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/****************************************************************************************
* Type definitions
****************************************************************************************/
@ -218,6 +228,7 @@ void CanInit(void)
blt_int16u prescaler;
blt_int8u tseg1, tseg2;
blt_bool result;
blt_int32u timeout;
/* the current implementation supports CAN1. throw an assertion error in case a
* different CAN channel is configured.
@ -230,21 +241,35 @@ void CanInit(void)
CANx->IER = (blt_int32u)0;
/* set request to reset the can controller */
CANx->MCR |= CAN_BIT_RESET ;
/* set timeout time to wait for can controller reset */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that the can controller was reset */
while ((CANx->MCR & CAN_BIT_RESET) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* exit from sleep mode, which is the default mode after reset */
CANx->MCR &= ~CAN_BIT_SLEEP;
/* set request to enter initialisation mode */
CANx->MCR |= CAN_BIT_INRQ ;
/* set timeout time to wait for entering initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was entered */
while ((CANx->MSR & CAN_BIT_INAK) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* configure the bittming */
CANx->BTR = (blt_int32u)((blt_int32u)(tseg1 - 1) << 16) | \
@ -252,11 +277,18 @@ void CanInit(void)
(blt_int32u)(prescaler - 1);
/* set request to leave initialisation mode */
CANx->MCR &= ~CAN_BIT_INRQ;
/* set timeout time to wait for exiting initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was exited */
while ((CANx->MSR & CAN_BIT_INAK) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* enter initialisation mode for the acceptance filter */
CANx->FMR |= CAN_BIT_FINIT;
@ -288,6 +320,7 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int32u txMsgId = BOOT_COM_CAN_TX_MSG_ID;
blt_int32u timeout;
/* make sure that transmit mailbox 0 is available */
ASSERT_RT((CANx->TSR&CAN_BIT_TME0) == CAN_BIT_TME0);
@ -322,11 +355,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
((blt_int32u)data[4]));
/* request the start of message transmission */
CANx->sTxMailBox[0].TIR |= CAN_BIT_TXRQ;
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((CANx->TSR&CAN_BIT_TME0) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

44
Target/Source/ARMCM3_STM32F1/flash.c
View File

@ -66,6 +66,17 @@
#define BOOT_FLASH_VECTOR_TABLE_CS_OFFSET (0x150)
#endif
/** \brief Maximum time for a sector erase operation as specified by the STM32F1 data-
* sheet with an added margin of at least 20%.
*/
#define FLASH_ERASE_TIME_MAX_MS (100)
/** \brief Maximum time for a page program operation as specified by the STM32F1 data-
* sheet with an added margin of at least 20%.
*/
#define FLASH_PROGRAM_TIME_MAX_MS (5)
#define FLASH_KEY1 ((blt_int32u)0x45670123)
#define FLASH_KEY2 ((blt_int32u)0xCDEF89AB)
#define FLASH_LOCK_BIT ((blt_int32u)0x00000080)
@ -669,6 +680,7 @@ static blt_bool FlashWriteBlock(tFlashBlockInfo *block)
blt_addr prog_addr;
blt_int32u prog_data;
blt_int32u word_cnt;
blt_int32u timeout;
/* check that address is actually within flash */
sector_num = FlashGetSector(block->base_addr);
@ -712,19 +724,35 @@ static blt_bool FlashWriteBlock(tFlashBlockInfo *block)
prog_data = *(volatile blt_int32u *)(&block->data[word_cnt * sizeof(blt_int32u)]);
/* program the first half word */
*(volatile blt_int16u *)prog_addr = (blt_int16u)prog_data;
/* set the timeout time for the program operation */
timeout = TimerGet() + FLASH_PROGRAM_TIME_MAX_MS;
/* wait for the program operation to complete */
while ((FLASH->SR & FLASH_BSY_BIT) == FLASH_BSY_BIT)
{
/* keep the watchdog happy */
CopService();
/* check for timeout */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* program the second half word */
*(volatile blt_int16u *)(prog_addr+2) = (blt_int16u)(prog_data >> 16);
/* set the timeout time for the program operation */
timeout = TimerGet() + FLASH_PROGRAM_TIME_MAX_MS;
/* wait for the program operation to complete */
while ((FLASH->SR & FLASH_BSY_BIT) == FLASH_BSY_BIT)
{
/* keep the watchdog happy */
CopService();
/* check for timeout */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* verify that the written data is actually there */
if (*(volatile blt_int32u *)prog_addr != prog_data)
@ -737,7 +765,7 @@ static blt_bool FlashWriteBlock(tFlashBlockInfo *block)
FLASH->CR &= ~FLASH_PG_BIT;
/* lock the flash array */
FlashLock();
/* still here so all is okay */
/* give the result back to the caller */
return result;
} /*** end of FlashWriteBlock ***/
@ -755,6 +783,8 @@ static blt_bool FlashEraseSectors(blt_int8u first_sector, blt_int8u last_sector)
blt_int16u block_cnt;
blt_addr start_addr;
blt_addr end_addr;
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* validate the sector numbers */
if (first_sector > last_sector)
@ -791,19 +821,27 @@ static blt_bool FlashEraseSectors(blt_int8u first_sector, blt_int8u last_sector)
FLASH->AR = start_addr + (block_cnt * FLASH_ERASE_BLOCK_SIZE);
/* start the block erase operation */
FLASH->CR |= FLASH_STRT_BIT;
/* set the timeout time for the erase operation */
timeout = TimerGet() + FLASH_ERASE_TIME_MAX_MS;
/* wait for the erase operation to complete */
while ((FLASH->SR & FLASH_BSY_BIT) == FLASH_BSY_BIT)
{
/* keep the watchdog happy */
CopService();
/* check for timeout */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
}
/* reset the page erase bit because we're all done erasing */
FLASH->CR &= ~FLASH_PER_BIT;
/* lock the flash array */
FlashLock();
/* still here so all went okay */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of FlashEraseSectors ***/

17
Target/Source/ARMCM3_STM32F1/uart.c
View File

@ -63,6 +63,8 @@ typedef struct
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/** \brief USART enable bit. */
#define UART_BIT_UE ((blt_int16u)0x2000)
/** \brief Transmitter enable bit. */
@ -255,6 +257,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if ((UARTx->SR & UART_BIT_TXE) == 0)
{
@ -263,14 +268,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
UARTx->DR = data;
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while ((UARTx->SR & UART_BIT_TXE) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

42
Target/Source/ARMCM3_STM32F2/can.c
View File

@ -34,6 +34,16 @@
#if (BOOT_COM_CAN_ENABLE > 0)
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for entering/leaving CAN initialization mode in milliseconds. */
#define CAN_INIT_TIMEOUT_MS (250u)
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/****************************************************************************************
* Type definitions
****************************************************************************************/
@ -227,6 +237,7 @@ void CanInit(void)
blt_int16u prescaler=0;
blt_int8u tseg1=0, tseg2=0;
blt_bool result;
blt_int32u timeout;
/* the current implementation supports CAN1 and 2. throw an assertion error in case a
* different CAN channel is configured.
@ -240,21 +251,35 @@ void CanInit(void)
CANx->IER = (blt_int32u)0;
/* set request to reset the can controller */
CANx->MCR |= CAN_BIT_RESET ;
/* set timeout time to wait for can controller reset */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that the can controller was reset */
while ((CANx->MCR & CAN_BIT_RESET) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* exit from sleep mode, which is the default mode after reset */
CANx->MCR &= ~CAN_BIT_SLEEP;
/* set request to enter initialisation mode */
CANx->MCR |= CAN_BIT_INRQ ;
/* set timeout time to wait for entering initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was entered */
while ((CANx->MSR & CAN_BIT_INAK) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* configure the bittming */
CANx->BTR = (blt_int32u)((blt_int32u)(tseg1 - 1) << 16) | \
@ -262,11 +287,18 @@ void CanInit(void)
(blt_int32u)(prescaler - 1);
/* set request to leave initialisation mode */
CANx->MCR &= ~CAN_BIT_INRQ;
/* set timeout time to wait for exiting initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was exited */
while ((CANx->MSR & CAN_BIT_INAK) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
#if (BOOT_COM_CAN_CHANNEL_INDEX == 0)
@ -319,6 +351,7 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int32u txMsgId = BOOT_COM_CAN_TX_MSG_ID;
blt_int32u timeout;
/* make sure that transmit mailbox 0 is available */
ASSERT_RT((CANx->TSR&CAN_BIT_TME0) == CAN_BIT_TME0);
@ -353,11 +386,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
((blt_int32u)data[4]));
/* request the start of message transmission */
CANx->sTxMailBox[0].TIR |= CAN_BIT_TXRQ;
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((CANx->TSR&CAN_BIT_TME0) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

20
Target/Source/ARMCM3_STM32F2/uart.c
View File

@ -41,6 +41,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/* map the configured UART channel index to the STM32's USART peripheral */
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to USART1. */
@ -231,6 +233,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
@ -239,13 +244,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
USART_SendData(USART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

17
Target/Source/ARMCM4_STM32F3/uart.c
View File

@ -42,8 +42,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte. */
#define UART_TX_TIMEOUT_MS (5u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/* map the configured UART channel index to the STM32's USART peripheral */
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to USART1. */
@ -220,19 +220,20 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static void UartTransmitByte(blt_int8u data)
{
blt_int32u txTimeoutTime;
blt_int32u timeout;
/* Determine timeout time for the transmit operation. */
txTimeoutTime = TimerGet() + UART_TX_TIMEOUT_MS;
/* write byte to transmit holding register */
LL_USART_TransmitData8(USART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (LL_USART_IsActiveFlag_TXE(USART_CHANNEL) == 0)
{
/* Check if a timeout occurred to prevent lockup. */
if (TimerGet() > txTimeoutTime)
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
/* Cannot transmit so stop waiting for its completion. */
break;
}
}

42
Target/Source/ARMCM4_STM32F4/can.c
View File

@ -34,6 +34,16 @@
#if (BOOT_COM_CAN_ENABLE > 0)
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for entering/leaving CAN initialization mode in milliseconds. */
#define CAN_INIT_TIMEOUT_MS (250u)
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/****************************************************************************************
* Type definitions
****************************************************************************************/
@ -227,6 +237,7 @@ void CanInit(void)
blt_int16u prescaler;
blt_int8u tseg1, tseg2;
blt_bool result;
blt_int32u timeout;
/* the current implementation supports CAN1 and 2. throw an assertion error in case a
* different CAN channel is configured.
@ -240,21 +251,35 @@ void CanInit(void)
CANx->IER = (blt_int32u)0;
/* set request to reset the can controller */
CANx->MCR |= CAN_BIT_RESET ;
/* set timeout time to wait for can controller reset */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that the can controller was reset */
while ((CANx->MCR & CAN_BIT_RESET) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* exit from sleep mode, which is the default mode after reset */
CANx->MCR &= ~CAN_BIT_SLEEP;
/* set request to enter initialisation mode */
CANx->MCR |= CAN_BIT_INRQ ;
/* set timeout time to wait for entering initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was entered */
while ((CANx->MSR & CAN_BIT_INAK) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* configure the bittming */
CANx->BTR = (blt_int32u)((blt_int32u)(tseg1 - 1) << 16) | \
@ -262,11 +287,18 @@ void CanInit(void)
(blt_int32u)(prescaler - 1);
/* set request to leave initialisation mode */
CANx->MCR &= ~CAN_BIT_INRQ;
/* set timeout time to wait for exiting initialization mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for acknowledge that initialization mode was exited */
while ((CANx->MSR & CAN_BIT_INAK) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
#if (BOOT_COM_CAN_CHANNEL_INDEX == 0)
@ -319,6 +351,7 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int32u txMsgId = BOOT_COM_CAN_TX_MSG_ID;
blt_int32u timeout;
/* make sure that transmit mailbox 0 is available */
ASSERT_RT((CANx->TSR&CAN_BIT_TME0) == CAN_BIT_TME0);
@ -353,11 +386,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
((blt_int32u)data[4]));
/* request the start of message transmission */
CANx->sTxMailBox[0].TIR |= CAN_BIT_TXRQ;
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((CANx->TSR&CAN_BIT_TME0) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

21
Target/Source/ARMCM4_STM32F4/uart.c
View File

@ -42,6 +42,9 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/* map the configured UART channel index to the STM32's USART peripheral */
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to USART1. */
@ -232,6 +235,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
@ -240,13 +246,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
USART_SendData(USART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (USART_GetFlagStatus(USART_CHANNEL, USART_FLAG_TXE) == RESET)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

13
Target/Source/ARMCM4_STM32L4/can.c
View File

@ -229,7 +229,7 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
blt_int32u txMsgId = BOOT_COM_CAN_TX_MSG_ID;
CAN_TxHeaderTypeDef txMsgHeader;
blt_int32u txMsgMailbox;
blt_int32u txMsgTimeout;
blt_int32u timeout;
HAL_StatusTypeDef txStatus;
/* configure the message that should be transmitted. */
@ -256,18 +256,17 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
if (txStatus == HAL_OK)
{
/* determine timeout time for the transmit completion. */
txMsgTimeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* poll for completion of the transmit operation. */
while (HAL_CAN_IsTxMessagePending(&canHandle, txMsgMailbox) != 0)
{
/* service the watchdog. */
CopService();
/* did a timeout occur? */
if (TimerGet() > txMsgTimeout)
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
/* stop waiting. no need for further action. if the response cannot be
* transmitted, then the receiving node will detect a timeout.
*/
break;
}
}

17
Target/Source/ARMCM4_STM32L4/uart.c
View File

@ -42,8 +42,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte. */
#define UART_TX_TIMEOUT_MS (5u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/* map the configured UART channel index to the STM32's USART peripheral */
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to USART1. */
@ -228,19 +228,20 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static void UartTransmitByte(blt_int8u data)
{
blt_int32u txTimeoutTime;
blt_int32u timeout;
/* Determine timeout time for the transmit operation. */
txTimeoutTime = TimerGet() + UART_TX_TIMEOUT_MS;
/* write byte to transmit holding register */
LL_USART_TransmitData8(USART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (LL_USART_IsActiveFlag_TXE(USART_CHANNEL) == 0)
{
/* Check if a timeout occurred to prevent lockup. */
if (TimerGet() > txTimeoutTime)
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
/* Cannot transmit so stop waiting for its completion. */
break;
}
}

17
Target/Source/ARMCM4_TM4C/uart.c
View File

@ -48,6 +48,8 @@
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/****************************************************************************************
@ -211,20 +213,31 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* write byte to transmit holding register */
if (UARTCharPutNonBlocking(UART0_BASE, data) == false)
{
/* tx holding register can accept new data */
return BLT_FALSE;
}
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while (UARTSpaceAvail(UART0_BASE) == false)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

17
Target/Source/ARMCM4_XMC4/can.c
View File

@ -39,6 +39,9 @@
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
/** \brief Macro for accessing the CAN channel handle in the format that is expected
* by the XMClib CAN driver.
*/
@ -112,11 +115,15 @@ void CanInit(void)
while (canModuleFreqHz < 12000000)
{
canModuleFreqHz *= 2;
/* keep the watchdog happy */
CopService();
}
/* decrease if too high */
while (canModuleFreqHz > 120000000)
{
canModuleFreqHz /= 2;
/* keep the watchdog happy */
CopService();
}
/* configure CAN module*/
@ -220,6 +227,7 @@ void CanInit(void)
void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int8u byteIdx;
blt_int32u timeout;
/* copy message data */
transmitMsgObj.can_data_length = len;
@ -233,11 +241,20 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
XMC_CAN_MO_ResetStatus(&transmitMsgObj, XMC_CAN_MO_RESET_STATUS_TX_PENDING);
/* submit message for transmission */
XMC_CAN_MO_Transmit(&transmitMsgObj);
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((XMC_CAN_MO_GetStatus(&transmitMsgObj) & XMC_CAN_MO_STATUS_TX_PENDING) != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

21
Target/Source/ARMCM4_XMC4/uart.c
View File

@ -42,6 +42,9 @@
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/** \brief Macro for accessing the UART channel handle in the format that is expected
* by the XMClib UART driver.
*/
@ -232,6 +235,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx fifo can accept new data */
if (XMC_USIC_CH_TXFIFO_IsFull(UART_CHANNEL) != 0)
{
@ -240,15 +246,24 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* submit data for transmission */
XMC_UART_CH_Transmit(UART_CHANNEL, data);
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for transmission to be done */
while( (XMC_USIC_CH_TXFIFO_GetEvent(UART_CHANNEL) & XMC_USIC_CH_TXFIFO_EVENT_STANDARD) == 0)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* reset event */
XMC_USIC_CH_TXFIFO_ClearEvent(UART_CHANNEL, XMC_USIC_CH_TXFIFO_EVENT_STANDARD);
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

37
Target/Source/HCS12/can.c
View File

@ -107,6 +107,11 @@ typedef struct
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout for entering/leaving CAN initialization mode in milliseconds. */
#define CAN_INIT_TIMEOUT_MS (250u)
/** \brief Timeout for transmitting a CAN message in milliseconds. */
#define CAN_MSG_TX_TIMEOUT_MS (50u)
#if (BOOT_COM_CAN_CHANNEL_INDEX == 0)
/** \brief Set CAN base address to CAN0. */
#define CAN_REGS_BASE_ADDRESS (0x0140)
@ -217,6 +222,7 @@ void CanInit(void)
blt_bool result;
blt_int32u accept_code;
blt_int32u accept_mask;
blt_int32u timeout;
/* the current implementation supports CAN0..4. throw an assertion error in case a
* different CAN channel is configured.
@ -225,10 +231,18 @@ void CanInit(void)
/* enter initialization mode. note that this automatically disables CAN interrupts */
CAN->cctl0 = INITRQ_BIT;
/* set timeout time for entering init mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for initialization mode entry handshake from the hardware */
while ((CAN->cctl1 & INITAK_BIT) == 0)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* enable the CAN controller, disable wake up and listen modes and set the
@ -278,10 +292,18 @@ void CanInit(void)
/* leave initialization mode and synchronize to the CAN bus */
CAN->cctl0 &= ~INITRQ_BIT;
/* set timeout time for leaving init mode */
timeout = TimerGet() + CAN_INIT_TIMEOUT_MS;
/* wait for CAN bus synchronization handshake from the hardware */
while ((CAN->cctl1 & INITAK_BIT) != 0)
{
;
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
break;
}
}
/* bring transmit buffer 0 in the foreground as this is the only one used by this
@ -302,6 +324,7 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int8u byte_idx;
blt_int32u txMsgId;
blt_int32u timeout;
/* double check that the transmit slot is really available */
ASSERT_RT((CAN->ctflg & TXE0_BIT) != 0);
@ -342,11 +365,21 @@ void CanTransmitPacket(blt_int8u *data, blt_int8u len)
*/
CAN->ctflg = TXE0_BIT;
/* set timeout time to wait for transmission completion */
timeout = TimerGet() + CAN_MSG_TX_TIMEOUT_MS;
/* wait for transmit completion */
while ((CAN->ctflg & TXE0_BIT) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure or no other
* nodes connected to the bus.
*/
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CanTransmitPacket ***/

18
Target/Source/HCS12/uart.c
View File

@ -57,6 +57,9 @@ typedef volatile struct
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
/** \brief Set UART base address to SCI0. */
#define UART_REGS_BASE_ADDRESS (0x00c8)
@ -250,6 +253,9 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* check if tx holding register can accept new data */
if ((UART->scisr1 & TDRE_BIT) == 0)
{
@ -258,14 +264,22 @@ static blt_bool UartTransmitByte(blt_int8u data)
}
/* write byte to transmit holding register */
UART->scidrl = data;
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for tx holding register to be empty */
while ((UART->scisr1 & TDRE_BIT) == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */

15
Target/Source/TRICORE_TC1798/GCC/cpu_comp.c
View File

@ -33,6 +33,12 @@
#include <machine/intrinsics.h>
/****************************************************************************************
* Macro definitions
****************************************************************************************/
#define CPU_INIT_MODE_TIMEOUT_MS (250u)
/****************************************************************************************
* Local function prototypes
****************************************************************************************/
@ -73,13 +79,22 @@ void CpuIrqEnable(void)
****************************************************************************************/
void CpuEnterInitMode(void)
{
blt_int32u timeout;
/* request clearing of the EndInit bit */
CpuWriteWDTCON0(WDT_CON0.reg & ~0x00000001);
/* set timeout to wait for hardware handshake */
timeout = TimerGet() + CPU_INIT_MODE_TIMEOUT_MS;
/* wait for hardware handshake */
while (WDT_CON0.bits.ENDINIT != 0)
{
/* keep the watchdog happy */
CopService();
/* break loop if timeout occurred */
if (TimerGet() > timeout)
{
break;
}
}
} /*** end of CpuEnterInitMode ***/

47
Target/Source/TRICORE_TC1798/flash.c
View File

@ -103,6 +103,16 @@
#define FLASH_CS_RANGE_TOTAL_WORDS ((FLASH_WRITE_BLOCK_SIZE/4u) - \
(FLASH_CS_RANGE_START_OFFSET/4u))
/** \brief Maximum time for a sector erase operation as specified by the Tricore data-
* sheet with an added margin of at least 20%.
*/
#define FLASH_ERASE_TIME_MAX_MS (5100)
/** \brief Maximum time for a page program operation as specified by the Tricore data-
* sheet with an added margin of at least 20%.
*/
#define FLASH_PROGRAM_TIME_MAX_MS (40)
/****************************************************************************************
* Plausibility checks
@ -818,6 +828,7 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
blt_int8u *readPtr;
blt_int32u idx;
FLASHn_FSR_t *pflashFSR;
blt_int32u timeout;
/* check address alignment to a page in PFLASH */
if ((start_addr % FLASH_WRITE_BLOCK_SIZE) != 0)
@ -834,6 +845,8 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
FLASH_WRITE_TO_U32_PTR_BY_ADDR(baseAddr + 0x5554u, 0x00000050u);
/* perform DSYNC */
CpuSetDSYNC();
/* set timeout time for hardware handshake */
timeout = TimerGet() + FLASH_PROGRAM_TIME_MAX_MS;
/* wait until FSR.xFPAGE = '1' */
while (pflashFSR->bits.PFPAGE != 1)
{
@ -849,6 +862,11 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
}
/* keep the watchdog happy */
CopService();
/* fail in case of timeout */
if (TimerGet() > timeout)
{
return BLT_FALSE;
}
}
/* load FLASH_WRITE_BLOCK_SIZE bytes of program data into the assembly buffer */
dataPtr = (blt_int32u *)data;
@ -868,6 +886,8 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
FLASH_WRITE_TO_U32_PTR_BY_ADDR(start_addr, 0x000000AAu);
/* perform DSYNC */
CpuSetDSYNC();
/* set timeout time for hardware handshake */
timeout = TimerGet() + FLASH_PROGRAM_TIME_MAX_MS;
/* wait until FSR.PROG = '1' */
while (pflashFSR->bits.PROG != 1)
{
@ -883,7 +903,14 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
}
/* keep the watchdog happy */
CopService();
/* fail in case of timeout */
if (TimerGet() > timeout)
{
return BLT_FALSE;
}
}
/* set timeout time for hardware handshake */
timeout = TimerGet() + FLASH_PROGRAM_TIME_MAX_MS;
/* wait until FSR.xBUSY = '0' */
while (pflashFSR->bits.PBUSY == 1)
{
@ -896,6 +923,11 @@ static blt_bool FlashTricoreProgramPage(blt_addr start_addr, blt_int8u *data)
}
/* keep the watchdog happy */
CopService();
/* fail in case of timeout */
if (TimerGet() > timeout)
{
return BLT_FALSE;
}
}
/* check FSR.VER flag */
if (pflashFSR->bits.VER != 0)
@ -948,6 +980,7 @@ static blt_bool FlashTricoreEraseSector(blt_addr start_addr)
blt_int8u sectorNum;
blt_int32u *readPtr;
blt_int32u idx;
blt_int32u timeout;
/* determine base address of the PFLASH module */
baseAddr = FLASH_GET_PFLASH_BASE(start_addr);
@ -964,6 +997,8 @@ static blt_bool FlashTricoreEraseSector(blt_addr start_addr)
FLASH_WRITE_TO_U32_PTR_BY_ADDR(start_addr, 0x00000030u);
/* perform DSYNC */
CpuSetDSYNC();
/* set timeout time for hardware handshake */
timeout = TimerGet() + FLASH_ERASE_TIME_MAX_MS;
/* wait until FSR.ERASE = '1' */
while (pflashFSR->bits.ERASE != 1)
{
@ -979,7 +1014,14 @@ static blt_bool FlashTricoreEraseSector(blt_addr start_addr)
}
/* keep the watchdog happy */
CopService();
/* fail in case of timeout */
if (TimerGet() > timeout)
{
return BLT_FALSE;
}
}
/* set timeout time for hardware handshake */
timeout = TimerGet() + FLASH_ERASE_TIME_MAX_MS;
/* wait until FSR.xBUSY = '0' */
while (pflashFSR->bits.PBUSY == 1)
{
@ -992,6 +1034,11 @@ static blt_bool FlashTricoreEraseSector(blt_addr start_addr)
}
/* keep the watchdog happy */
CopService();
/* fail in case of timeout */
if (TimerGet() > timeout)
{
return BLT_FALSE;
}
}
/* check FSR.VER flag */
if (pflashFSR->bits.VER != 0)

18
Target/Source/TRICORE_TC1798/uart.c
View File

@ -66,6 +66,8 @@ typedef struct
* reception of the first packet byte.
*/
#define UART_CTO_RX_PACKET_TIMEOUT_MS (100u)
/** \brief Timeout for transmitting a byte in milliseconds. */
#define UART_BYTE_TX_TIMEOUT_MS (10u)
/****************************************************************************************
@ -264,17 +266,29 @@ static blt_bool UartReceiveByte(blt_int8u *data)
****************************************************************************************/
static blt_bool UartTransmitByte(blt_int8u data)
{
blt_int32u timeout;
blt_bool result = BLT_TRUE;
/* reset transmit buffer interrupt request */
UARTx->TBSRC.bits.CLRR = 1;
/* write byte to transmit buffer register */
UARTx->TBUF.reg = data;
/* set timeout time to wait for transmit completion. */
timeout = TimerGet() + UART_BYTE_TX_TIMEOUT_MS;
/* wait for transmit buffer register to be empty */
while (UARTx->TBSRC.bits.SRR == 0)
{
/* keep the watchdog happy */
CopService();
/* break loop upon timeout. this would indicate a hardware failure. */
if (TimerGet() > timeout)
{
result = BLT_FALSE;
break;
}
}
/* byte transmitted */
return BLT_TRUE;
/* give the result back to the caller */
return result;
} /*** end of UartTransmitByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */