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Improved UART Timeout 

Apparently, the UART data Rx/Tx is quite unreliable (especially under motor load) leading to very often out-of-sync issues. This change allows to reset the DMA more often, leading to a faster re-sync of the UART transmission and thus avoiding UART timeout.
This commit is contained in:
EmanuelFeru 2020-06-01 20:08:47 +02:00
parent 32f4a2c03e
commit 34c6e4d610
3 changed files with 5 additions and 5 deletions
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10
Src/util.c
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@ -731,7 +731,7 @@ void readCommand(void) {
timeoutCntSerial = SERIAL_TIMEOUT; // Limit timout counter value timeoutCntSerial = SERIAL_TIMEOUT; // Limit timout counter value
} }
// Most probably we are out-of-sync. Try to re-sync by reseting the DMA // Most probably we are out-of-sync. Try to re-sync by reseting the DMA
if (main_loop_counter % 30 == 0) { if (command.start != IBUS_LENGTH && command.start != 0xFF && main_loop_counter % 2 == 0) {
HAL_UART_DMAStop(&huart); HAL_UART_DMAStop(&huart);
HAL_UART_Receive_DMA(&huart, (uint8_t *)&command, sizeof(command)); HAL_UART_Receive_DMA(&huart, (uint8_t *)&command, sizeof(command));
} }
@ -753,7 +753,7 @@ void readCommand(void) {
timeoutCntSerial = SERIAL_TIMEOUT; // Limit timout counter value timeoutCntSerial = SERIAL_TIMEOUT; // Limit timout counter value
} }
// Most probably we are out-of-sync. Try to re-sync by reseting the DMA // Most probably we are out-of-sync. Try to re-sync by reseting the DMA
if (main_loop_counter % 30 == 0) { if (command.start != SERIAL_START_FRAME && command.start != 0xFFFF && main_loop_counter % 2 == 0) {
HAL_UART_DMAStop(&huart); HAL_UART_DMAStop(&huart);
HAL_UART_Receive_DMA(&huart, (uint8_t *)&command, sizeof(command)); HAL_UART_Receive_DMA(&huart, (uint8_t *)&command, sizeof(command));
} }
@ -787,7 +787,7 @@ void readCommand(void) {
timeoutCntSerial_L = SERIAL_TIMEOUT; // Limit timout counter value timeoutCntSerial_L = SERIAL_TIMEOUT; // Limit timout counter value
} }
// Most probably we are out-of-sync. Try to re-sync by reseting the DMA // Most probably we are out-of-sync. Try to re-sync by reseting the DMA
if (main_loop_counter % 30 == 0) { if (Sideboard_Lnew.start != SERIAL_START_FRAME && Sideboard_Lnew.start != 0xFFFF && main_loop_counter % 2 == 0) {
HAL_UART_DMAStop(&huart2); HAL_UART_DMAStop(&huart2);
HAL_UART_Receive_DMA(&huart2, (uint8_t *)&Sideboard_Lnew, sizeof(Sideboard_Lnew)); HAL_UART_Receive_DMA(&huart2, (uint8_t *)&Sideboard_Lnew, sizeof(Sideboard_Lnew));
} }
@ -810,7 +810,7 @@ void readCommand(void) {
timeoutCntSerial_R = SERIAL_TIMEOUT; // Limit timout counter value timeoutCntSerial_R = SERIAL_TIMEOUT; // Limit timout counter value
} }
// Most probably we are out-of-sync. Try to re-sync by reseting the DMA // Most probably we are out-of-sync. Try to re-sync by reseting the DMA
if (main_loop_counter % 30 == 0) { if (Sideboard_Rnew.start != SERIAL_START_FRAME && Sideboard_Rnew.start != 0xFFFF && main_loop_counter % 2 == 0) {
HAL_UART_DMAStop(&huart3); HAL_UART_DMAStop(&huart3);
HAL_UART_Receive_DMA(&huart3, (uint8_t *)&Sideboard_Rnew, sizeof(Sideboard_Rnew)); HAL_UART_Receive_DMA(&huart3, (uint8_t *)&Sideboard_Rnew, sizeof(Sideboard_Rnew));
} }
@ -818,7 +818,7 @@ void readCommand(void) {
timeoutFlagSerial = timeoutFlagSerial_R; timeoutFlagSerial = timeoutFlagSerial_R;
#endif #endif
#if defined(SIDEBOARD_SERIAL_USART2) && defined(SIDEBOARD_SERIAL_USART3) #if defined(SIDEBOARD_SERIAL_USART2) && defined(SIDEBOARD_SERIAL_USART3)
timeoutFlagSerial = timeoutFlagSerial_L | timeoutFlagSerial_R; timeoutFlagSerial = timeoutFlagSerial_L || timeoutFlagSerial_R;
#endif #endif
#ifdef VARIANT_HOVERCAR #ifdef VARIANT_HOVERCAR

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