void flashpage_write(int page, const void *data)
{
assert(page < FLASHPAGE_NUMOF);
uint32_t *page_addr = (uint32_t *)flashpage_addr(page);
/* erase given page (the ADDR register uses 16-bit addresses) */
_unlock();
NVMCTRL->ADDR.reg = (((uint32_t)page_addr) >> 1);
NVMCTRL->CTRLA.reg = (NVMCTRL_CTRLA_CMDEX_KEY | NVMCTRL_CTRLA_CMD_ER);
while (!NVMCTRL->INTFLAG.bit.READY) {}
_lock();
/* write data to page */
if (data != NULL) {
flashpage_write_raw(page_addr, data, FLASHPAGE_SIZE);
}
}
static int cmd_write_raw(int argc, char **argv)
{
uint32_t addr;
if (argc < 3) {
printf("usage: %s <addr> <data>\n", argv[0]);
return 1;
}
addr = getaddr(argv[1]);
/* try to align */
memcpy(raw_buf, argv[2], strlen(argv[2]));
flashpage_write_raw((void*)addr, raw_buf, strlen(raw_buf));
printf("wrote local data to flash address %#lx of len %u\n",
addr, strlen(raw_buf));
return 0;
}
/**
* @brief Does a short raw write on last page available
*
* @note Since every hardware can have different flash layouts for
* automated testing we always write to the last page available
* so we are independent of the size or layout
*/
static int cmd_test_last_raw(int argc, char **argv)
{
(void) argc;
(void) argv;
/* try to align */
memcpy(raw_buf, "test12344321tset", 16);
/* erase the page first */
flashpage_write(((int)FLASHPAGE_NUMOF - 1), NULL);
flashpage_write_raw(flashpage_addr((int)FLASHPAGE_NUMOF - 1), raw_buf, strlen(raw_buf));
/* verify that previous write_raw effectively wrote the desired data */
if (memcmp(flashpage_addr((int)FLASHPAGE_NUMOF - 1), raw_buf, strlen(raw_buf)) != 0) {
puts("error verifying the content of last page");
return 1;
}
puts("wrote raw short buffer to last flash page");
return 0;
}