Is there something extra I need to do to take control of UART0, such as changing the pin functions? Or could this port have been commandeered by some ESP-IDF printf functionality, which I need to deactivate?
OR, do I have a simple bug in my code below?
Thanks very much for any help!
Code: Select all
const uart_port_t SMILE_UART_NUM = UART_NUM_1;
int UART_Initialize()
{
esp_err_t r;
uart_config_t uart_config = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.rx_flow_ctrl_thresh = 122,
};
r = uart_param_config(SMILE_UART_NUM, &uart_config);
r = uart_set_pin(SMILE_UART_NUM, 11,10, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE); // worls with test loop
const int uart_buffer_size = (1024 * 2);
QueueHandle_t uart_queue;
r = uart_driver_install(SMILE_UART_NUM, uart_buffer_size, uart_buffer_size, 10, &uart_queue, 0);
printf("Successfully initialized UART\n");
return 0;
}
void UART_SendChar(char c)
{
esp_err_t r;
char c2 = c;
r = uart_write_bytes(SMILE_UART_NUM, &c2, 1);
}
Code: Select all
const uart_port_t SMILE_UART_NUM = UART_NUM_0; // **** CHANGED FROM 1 TO 0
int UART_Initialize()
{
esp_err_t r;
uart_config_t uart_config = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.rx_flow_ctrl_thresh = 122,
};
r = uart_param_config(SMILE_UART_NUM, &uart_config);
r = uart_set_pin(SMILE_UART_NUM, UART_PIN_NO_CHANGE,UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE); // ** CHANGED TO DEFAULT PINS (U0TXD/GPIO16, U0RXD/GPIO17)
const int uart_buffer_size = (1024 * 2);
QueueHandle_t uart_queue;
r = uart_driver_install(SMILE_UART_NUM, uart_buffer_size, uart_buffer_size, 10, &uart_queue, 0);
printf("Successfully initialized UART\n");
return 0;
}
void UART_SendChar(char c)
{
esp_err_t r;
char c2 = c;
r = uart_write_bytes(SMILE_UART_NUM, &c2, 1);
}