Posted on June 30, 2017 at 10:47Hi,
I have the following issue when using the attached code:
board->computer
ABCDE\r\n
the computer dosent receive anything
i send from the computer '11
\r\n
'
the board reply is ABCD
basically there is one step delay between receiving/sending the message
the code in the main is shown below
int main(void)
{
MPU_Config();
CPU_CACHE_Enable();
&sharpifdef RTE_CMSIS_RTOS // when using CMSIS RTOS
osKernelInitialize(); // initialize CMSIS-RTOS
&sharpendif
HAL_Init();
BSP_SDRAM_Init();
/* Configure the System clock to have a frequency of 216 MHz */
SystemClock_Config();
myGPIO_Init();
myNVIC_Init();
myADC_Init();
myUART_Init();
...
//&sharpifdef RTE_CMSIS_RTOS // when using CMSIS RTOS
Init_GUIThread();
osKernelStart(); // start thread execution
//&sharpendif
// startFIFO();
myTime = HAL_GetTick();
for(cnt=0; cnt<7;cnt++)
TxBuffer[cnt] = cnt+65;
TxBuffer[7] = '\n';
SendToXbee(8);
while (1)
{
Battery_Val = getBattery();
if(HAL_GetTick() > myTime)
{
myToogle = !myToogle;
if(myToogle){
//XBeeOn;
myRxSize = Xbee_available();
if(myRxSize){
printf('Buffer has %d bytes\r\n', myRxSize);
for(cnt = 0; cnt < myRxSize; cnt++)
TxBuffer[cnt] = Xbee_get();
TxBuffer[cnt++] = '\r';
TxBuffer[cnt++] = '\n';
SendToXbee(myRxSize+2);
}
//printf('DMA data remaining: %d \r\n', myDMA_Remain);
//sprintf((char *)TxBuffer, 'Battery Value is %d \r\n', Battery_Val);
//SendToXbee(TxBuffer, sizeof(TxBuffer));
}else {
//XBeeOff;
}
myTime += 50;
}
osDelay(10);
}
Can anyone help me to understand what i am doing wrong?
Thank you
#dma #uart #ring-buffer #stm32f7-discovery
