crosstyan/stmf411re_test
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feat: Update UART heartbeat message format, adjust UART2 baud rate and oversampling

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crosstyan
2025-10-30 12:40:01 +08:00
parent 48bb410179
commit f85f6c01c6
1 changed files with 32 additions and 23 deletions
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51
Core/Src/main.c
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@ -102,15 +102,22 @@ static void hex_dump(const uint8_t *data, uint16_t len)
// Print ASCII representation
pos += snprintf(line_buf + pos, sizeof(line_buf) - pos, " |");
for (int j = 0; j < 16 && (i + j) < len; j++) {
for (int j = 0; j < 16; j++) {
if (i + j < len) {
uint8_t c = data[i + j];
if (c >= 32 && c <= 126) {
pos += snprintf(line_buf + pos, sizeof(line_buf) - pos, "%c", c);
line_buf[pos++] = c;
} else {
pos += snprintf(line_buf + pos, sizeof(line_buf) - pos, ".");
line_buf[pos++] = '.';
}
} else {
// Pad with space if beyond data length
line_buf[pos++] = ' ';
}
}
pos += snprintf(line_buf + pos, sizeof(line_buf) - pos, "|\r\n");
line_buf[pos++] = '|';
line_buf[pos++] = '\r';
line_buf[pos++] = '\n';
// Send line to UART1
HAL_UART_Transmit(&huart1, (uint8_t *)line_buf, (uint16_t)pos, HAL_MAX_DELAY);
@ -160,21 +167,6 @@ int main(void)
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1) {
static uint32_t last_toggle_timestamp;
if (HAL_GetTick() - last_toggle_timestamp >= 1000) {
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_6);
/* Heartbeat: emit tick timestamp over UART1 and blink the PB6 LED */
int msg_len = snprintf(heartbeat_buf, sizeof(heartbeat_buf),
"PB6 heartbeat %lu\r\n", (unsigned long)HAL_GetTick());
if (msg_len > 0) {
if (msg_len >= (int)sizeof(heartbeat_buf)) {
msg_len = (int)sizeof(heartbeat_buf) - 1;
}
HAL_UART_Transmit(&huart1, (uint8_t *)heartbeat_buf, (uint16_t)msg_len,
HAL_MAX_DELAY);
}
last_toggle_timestamp = HAL_GetTick();
}
/* Check if data received from UART2 */
if (rx_complete) {
@ -195,6 +187,23 @@ int main(void)
/* Re-arm UART2 reception */
HAL_UART_Receive_IT(&huart2, rx_buf, sizeof(rx_buf));
}
static uint32_t last_toggle_timestamp;
if (HAL_GetTick() - last_toggle_timestamp >= 1000) {
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_6);
/* Heartbeat: emit tick timestamp over UART1 and blink the PB6 LED */
int msg_len = snprintf(heartbeat_buf, sizeof(heartbeat_buf),
"%lu PB6 heartbeat\r\n", (unsigned long)HAL_GetTick());
if (msg_len > 0) {
if (msg_len >= (int)sizeof(heartbeat_buf)) {
msg_len = (int)sizeof(heartbeat_buf) - 1;
}
HAL_UART_Transmit(&huart1, (uint8_t *)heartbeat_buf, (uint16_t)msg_len,
HAL_MAX_DELAY);
}
last_toggle_timestamp = HAL_GetTick();
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
@ -296,13 +305,13 @@ static void MX_USART2_UART_Init(void)
/* USER CODE END USART2_Init 1 */
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.BaudRate = 14400;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
huart2.Init.OverSampling = UART_OVERSAMPLING_8;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();