Posted on October 16, 2014 at 14:43First of all, thanks Mr Laurent for your help.
Here after you could find pieces of code ''playing'' with pointer. I must notify you that popData function are working for months only get_rawData is new.
Another thing is everytime i start this code, without modify the code, the address of buffer is changing, sometime lower than SP address sometime higher. It is not normal if the code doesn't change. (No compilation between) Mayby Attolic work wrong
PS my debug prob is a SEGGER J-Link ultra+ and the core clock is at 100MHz
Thanks in advance
main(){
uint32_t waitComTime = 0;
char rdrSNB[8];
uint8_t buffer[600];
/* static RTC_TimeTypeDef RTCTime;
static RTC_DateTypeDef RTCDate;
comRadarMode = COM_GPRS_MODE;*/
initBoard();
setPwrLed(ENABLE);
setComLed(DISABLE);
setStatusLed(DISABLE);
initParam();
initUsrDriver();
......
rdr_getRawPage(buffer,0,1000); // generally crash here
......
}
uint8_t rdr_getRawPage(uint8_t *data,uint16_t index,uint32_t timeOut){
uint8_t request[]={REQ_SOF,0x04,GET_RAWP_CMD,0x00,0x00};
uint16_t count=3;
uint8_t ans[6];
uint16_t i;
uint32_t waitTime;
.... some stuffs....
waitTime = sysTickMs;
while(rdr_getRxBufferSize()<(PAGE_SIZE_16MB+6))
if((sysTickMs-waitTime)>timeOut) {
lastRdrError=RDR_PGTO_ERROR;
return 0;
}
for(i=0;i<PAGE_SIZE_16MB;i++){
popData(&rxRdrBufferStruct,data); //generally crash here
data++;
}
if(!rdr_getPacket(ans,&count,1000)) {
return 0;
}
return 1;
uint16_t popData(ringBuffer* buffer, uint8_t *data){
(*data) = *(buffer->tail);
buffer->tail++;
if(buffer->tail == buffer->end){
buffer->tail = buffer->start;
}
buffer->count = getCount(buffer);
return buffer->count;
}
Initialisation of rxRdRBufferStruct:
rxRdrBufferStruct.bufferHandle = rxRdrBuffer;
rxRdrBufferStruct.start = rxRdrBuffer;
rxRdrBufferStruct.end = rxRdrBuffer + RX_RDR_BUFFER_SIZE;
rxRdrBufferStruct.heap = rxRdrBufferStruct.start;
rxRdrBufferStruct.tail = rxRdrBufferStruct.start;
Declaration of ringBuffer (type of rxRDRBufferStruct)
typedef struct {
volatile uint32_t count;
volatile uint8_t *start;
volatile uint8_t *end;
volatile uint8_t *heap;
volatile uint8_t *tail;
uint8_t *bufferHandle;
} ringBuffer;
