G070KBT6 - HAL_UART_Receive function return HAL_TIMEOUT early. I called the "HAL_UART_Receive" function in my "at_send_cmd" function and set its timeout parameter to 30 seconds, but I observed that the function immediately returned HAL_TIMEOUT.My SysTick should be working properly, and I can use the HAL_Delay function normally.When I call the "at_send_cmd" function, it can send data normally, but cannot receive data normally because of timeout. #include "atcmd.h"
uint8_t at_rx_buffer[512];
static void at_clean_buffer(UART_HandleTypeDef* usart){
uint8_t buffer;
while (HAL_UART_Receive(usart, &buffer, 1, 0) == HAL_OK);
}
uint16_t at_send_cmd(UART_HandleTypeDef* usart, const char* cmd, uint8_t offset, uint8_t rx_length, uint16_t timeout){
uint8_t i = 3, result;
uint16_t cmd_length = strlen(cmd);
while (i > 0){
at_clean_buffer(usart);
HAL_UART_Transmit(usart, (const uint8_t*)cmd, cmd_length, 3000);
if ((result = HAL_UART_Receive(usart, at_rx_buffer, cmd_length + offset + rx_length, timeout)) == HAL_OK){
at_rx_buffer[cmd
