Hello, Following AN4872 & UM2667 I did the following:
- Connected J15(Force DIO7 High).
- UART-Connection is like(Beside GND and Vdd):
Nucleo-Board(F401RE) <-----------------------> X-NUCLEO-BNRG2A1
PA9(UART1_Tx) <-----------------------> PA2-DIO11(UART_Rx)
PA10(UART1_Rx) <-----------------------> PA3-DIO8(UART_Tx)
- UART1 Baudrate is 115200bps
- The X-NUCLEO-BNRG2A1 was tested with the Sensor Demo Application to verify that the Preloaded firmware works and successfully initializes and runs the application.
- The Preflashed Firmware is: DTM_SPI_M2SP_Eval_Kit.
The following is a test code, USART2 is used with ST-Link for debugging.
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
// Assuming the UART handle is globally defined
uint8_t txData = 0x7F; // Data to send
uint8_t rxData = 0x00; // Buffer to store received byte
uint8_t Rx_Buff[10];
uint8_t cnt = 0;
bool Rx_Flag = False;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
HAL_StatusTypeDef status;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART2_UART_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
// Print_Sys();
HAL_GPIO_WritePin(BLE_Boot_DIO7_GPIO_Port, BLE_Boot_DIO7_Pin, GPIO_PIN_SET);
BLE_Reset();
HAL_Delay(2000);
// Transmit the data (0x7F)
status = HAL_UART_Transmit(Platform_UART_Handler, &txData, 1, HAL_MAX_DELAY);
while(!Rx_Flag)
{
// Receive the data
status = HAL_UART_Receive_IT(Platform_UART_Handler, &rxData, 1);
// status = HAL_UART_Receive(Platform_UART_Handler, &rxData, 1, HAL_MAX_DELAY);
if((status == HAL_OK))
{
// Data_Buff[cnt++] = rxData;
printf("Received Packet: 0x%X\r\n", rxData);
HAL_GPIO_WritePin(GPIOA, LD2_Pin, GPIO_PIN_SET);
HAL_UART_Transmit(&huart2, &rxData, cnt, HAL_MAX_DELAY);
Rx_Flag = True;
}
else
{
printf("UART Rx Error\n\r");
}
}
HAL_GPIO_WritePin(GPIOA, LD2_Pin, GPIO_PIN_RESET);
Rx_Flag = False;
HAL_GPIO_WritePin(BLE_Boot_DIO7_GPIO_Port, BLE_Boot_DIO7_Pin, GPIO_PIN_SET);
BLE_Reset();
HAL_Delay(2000);
txData = 0xF7; // BigEndian
status = HAL_UART_Transmit(Platform_UART_Handler, &txData, 1, HAL_MAX_DELAY);
while(!Rx_Flag)
{
// Receive the data
// status = HAL_UART_Receive_IT(Platform_UART_Handler, &rxData, 1);
status = HAL_UART_Receive(Platform_UART_Handler, &rxData, 1, HAL_MAX_DELAY);
if((status == HAL_OK))
{
// Data_Buff[cnt++] = rxData;
printf("Received Packet: 0x%X\r\n", rxData);
HAL_GPIO_WritePin(GPIOA, LD2_Pin, GPIO_PIN_SET);
HAL_UART_Transmit(&huart2, &rxData, cnt, HAL_MAX_DELAY);
Rx_Flag = True;
}
else
{
printf("UART Rx Error\n\r");
}
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
{
HAL_UART_Receive_IT(Platform_UART_Handler, &rxData, 1);
Rx_Flag = True;
}
/**
* @brief Reset BlueNRG module.
*
* @PAram None
* @retval int32_t 0
*/
int32_t BLE_Reset(void)
{
// Deselect CS PIN for BlueNRG to avoid spurious commands
HAL_GPIO_WritePin(BLE_CS_GPIO_Port, BLE_CS_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(BLE_RST_GPIO_Port, BLE_RST_Pin, GPIO_PIN_RESET);
HAL_Delay(5);
HAL_GPIO_WritePin(BLE_RST_GPIO_Port, BLE_RST_Pin, GPIO_PIN_SET);
HAL_Delay(5);
return 0;
}
Observing the Signals on the UART-Pins (UART1_Tx and UART1_Rx) I get the following:
Big picture:
1st transmitted byte 0x7F
2nd Transmited byte(after 2 seconds)
In both cases, there is no response from the BLE Board.
Is there something wrong with my configurations? What I'm missing here?
Thank you
