File content as of revision 1:3cceef118195:

#include "mbed.h"
#include "rtos.h"
#include "SimpleDMA.h"
#include "dmaSPIslave.h"

#define PAYLOAD_LENGTH 1024

dmaSPISlave spi(PTA16, PTA17, PTA15, PTA14);
RawSerial pc(USBTX, USBRX);
DigitalOut ledg(LED_GREEN);

bool flag = false;

void do_this(void){
    flag = true;
}

int main(){
    pc.baud(9600);
    pc.printf("inside main\r\n");
    spi.format(8,0);
//    spi.frequency(16000000);
    
    uint8_t buffer[PAYLOAD_LENGTH] = {0};
    pc.printf("welcome to dma test, start sending data now\r\n");
    
//    while(true){
//        int i = 0;
//        while(i < PAYLOAD_LENGTH){
//            if(spi.receive()){
//                buffer[i] = spi.read();
//                ++i;
//                ledg = !ledg;
//            }
//        }
//        for(int i = 0 ; i < PAYLOAD_LENGTH ; ++i){
//            pc.printf("%02x ", buffer[i]);
//        }
//        pc.printf("\r\n");
//
//    }

    spi.bulkRead_init(buffer, PAYLOAD_LENGTH, &do_this);
    spi.bulkRead_start();
    while(true){
        if(flag){
            flag = false;
            ledg = !ledg;
            for(int i = 0 ; i < PAYLOAD_LENGTH ; ++i){
                pc.printf("%02x ", buffer[i]);
            }
            pc.printf("\r\n");
            spi.bulkRead_start();
        }
    }
    
}