st-nucleo-f429zi/FlashMemory/main.cpp

#include <cox.h>

#include <stm32f4/STM32F4xxFlashSector.hpp>
 
STM32F4xxFlashSector sector(0x081E0000, 128 * 1024);
 
char keyBuf[256];
 
static void printMenu() {
  printf("Usage:\n");
  printf("* read {addr} {len}\n");
  printf("* write {addr} {single byte of data}\n");
  printf("* length\n");
  printf("* writestring {addr} {string}\n");
  printf("* write1k {addr} {single byte of data}\n");
}
 
static uint8_t copyUntil(char *dst, char *src, uint8_t len, char terminator) {
  uint8_t i, j = 0;
 
  for (i = 0; i < len; i++) {
    if (src[i] == terminator) {
      i++;
      dst[j++] = '\0';
      break;
    } else {
      dst[j++] = src[i];
    }
  }
 
  return i;
}
 
static void eventSerialReceived(SerialPort &) {
  char tmpBuf[256];
  uint8_t i;
 
  if (strcmp(keyBuf, "length") == 0) {
    printf("* length: 0x%lX\n", (uint32_t) sector.length());
  } else if (strncmp(keyBuf, "read ", 5) == 0) {
    uint32_t addr, len;
 
    i = 5;
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, ' ');
    addr = strtoul(tmpBuf, NULL, 0);
 
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, '\0');
    len = strtoul(tmpBuf, NULL, 0);
 
    printf("* read %lu bytes from address 0x%lX:\n", len, addr);
 
    if (len > 0) {
      uint8_t *dump = new uint8_t[len];
      if (dump) {
        sector.read(dump, addr, len);
 
        for (uint32_t x = 0; x < len; x++) {
          uint8_t index = x % 16;
 
          if (index == 0) {
            printf("0x%08lX |", addr + x);
          }
          printf(" %02X", dump[x]);
          if (index == 7) {
            printf(" ");
          } else if (x % 16 == 15) {
            printf("\n");
          }
        }
        printf("\n");
        delete[] dump;
      }
    }
  } else if (strncmp(keyBuf, "write ", 6) == 0) {
    uint32_t addr;
    uint8_t data;
 
    i = 6;
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, ' ');
    addr = strtoul(tmpBuf, NULL, 0);
 
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, '\0');
    data = (uint8_t) strtoul(tmpBuf, NULL, 0);
 
    printf("* write 0x%02X to address 0x%lX:\n", data, addr);
 
    sector.write(addr, data);
  } else if (strncmp(keyBuf, "write1k ", 8) == 0) {
    uint32_t addr;
    uint8_t data;
    uint8_t dataBlock[1024];
 
    i = 8;
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, ' ');
    addr = strtoul(tmpBuf, NULL, 0);
 
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, '\0');
    data = (uint8_t) strtoul(tmpBuf, NULL, 0);
 
    printf("* write1k [0x%02X 0x%02X ...] to address 0x%lX~0x%lX:\n", data, data + 1, addr, addr + 1024);
 
    for (uint32_t x = 0; x < 1024; x++) {
      dataBlock[x] = data + x;
    }
 
    sector.write(dataBlock, addr, 1024);
 
  } else if (strncmp(keyBuf, "writestring ", 12) == 0) {
    uint32_t addr;
    const char *data;
 
    i = 12;
    i += copyUntil(tmpBuf, &keyBuf[i], 255 - i, ' ');
    addr = strtoul(tmpBuf, NULL, 0);
 
    data = keyBuf + i;
    printf("* writestring \"%s\" to address 0x%lX:\n", data, addr);
 
    sector.write((const uint8_t *) data, addr, strlen(data));
  } else {
    printf("* Unknown command\n");
  }
 
  printf("\n");
  printMenu();
  Serial.inputKeyboard(keyBuf, sizeof(keyBuf) - 1);
}
 
void setup() {
  Serial.begin(115200);
  printf("\n*** [ST Nucleo-F429ZI] Internal Flash Memory (sector) Test ***\n");
 
  Serial.onReceive(eventSerialReceived);
  Serial.inputKeyboard(keyBuf, sizeof(keyBuf) - 1);
  Serial.listen();
  printMenu();
}