Question
STM32Wl getting sent Data with OnRxDone
Hello there!
I just modified the PingPong example for the NUCLEO WL55JC1 Board so I have one defined transmitter and one receiver.
As you can see in the picture, the Master transmits continuously the bytes "PING" (wich I want to replace later).
/* Send the next PING frame */
Buffer[0] = 'P';
Buffer[1] = 'I';
Buffer[2] = 'N';
Buffer[3] = 'G';
/* We fill the buffer with numbers for the payload */
for (i = 4; i < BufferSize; i++)
{
Buffer[i] = i - 4;
}
APP_LOG(TS_ON, VLEVEL_L, "...PING\n\r");
APP_LOG(TS_ON, VLEVEL_L, "Master Tx start\n\r");
Radio.SetChannel(RF_FREQUENCY);
/* Add delay between TX and RX =
time Busy_signal is ON in RX opening window */
HAL_Delay(Radio.GetWakeupTime() + TCXO_WORKAROUND_TIME_MARGIN);
Radio.Send(Buffer, BufferSize);The transmition works and the receiver gets into the command "OnRxDone", so they're both synchronized.
After OnRxDone status = TX means its again doing a Radio.RX. If this works, again OnRxDone, and so on. But now I want to output the sent data on a COM-Port.
OnRxDone command:
static void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
{
#if defined(USE_BSP_DRIVER)
BSP_LED_Off(LED_RED) ;
BSP_LED_Toggle(LED_GREEN) ;
#elif defined(MX_BOARD_PSEUDODRIVER)
SYS_LED_Off(SYS_LED_RED) ;
SYS_LED_Toggle(SYS_LED_GREEN) ;
#endif /* USE_BSP_DRIVER || MX_BOARD_PSEUDODRIVER */
APP_LOG(TS_ON, VLEVEL_L, "OnRxDone\n\r");
APP_LOG(TS_ON, VLEVEL_L, "RssiValue=%d dBm, SnrValue=%d\n\r", rssi, snr);
Radio.Sleep();
BufferSize = size;
memcpy(Buffer, payload, BufferSize);
RssiValue = rssi;
SnrValue = snr;
State = TX;
UTIL_SEQ_SetTask((1 << CFG_SEQ_Task_PingPong_Process), CFG_SEQ_Prio_0);
}If I output just Buffer it's empty. Any advices?
Notes:
Thats the built-in "send" command:
* \brief Sends the buffer of size. Prepares the packet to be sent and sets
* the radio in transmission
*
* \param [IN]: buffer Buffer pointer
* \param [IN]: size Buffer size
*/
void ( *Send )( uint8_t *buffer, uint8_t size );and that the "rx" command:
* \brief Rx Done callback prototype.
*
* \param [IN] payload Received buffer pointer
* \param [IN] size Received buffer size
* \param [IN] rssi RSSI value computed while receiving the frame [dBm]
* \param [IN] snr SNR value computed while receiving the frame [dB]
* FSK : N/A ( set to 0 )
* LoRa: SNR value in dB
*/
void ( *RxDone )( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );Thanks in advance!
Regards