/**
* \brief Test NVM initialization
*
* This function will write the default configuration to NVM
* and returns an error in case of failure.
*
* \param test Current test case.
*/
static void run_nvm_init_test(const struct test_case *test)
{
struct nvm_config config;
enum status_code status;
/* Get the default configuration */
nvm_get_config_defaults(&config);
/* Set wait state to 1 */
config.wait_states = 1;
/* Enable automatic page write mode */
config.manual_page_write = false;
/* Set the NVM configuration */
status = nvm_set_config(&config);
/* Validate the initialization */
test_assert_true(test, status == STATUS_OK,
"NVM Initialization error");
if (status == STATUS_OK) {
nvm_init_success = true;
}
}
static int
samd21_flash_init(void)
{
int rc;
struct nvm_config cfg;
struct nvm_parameters params;
nvm_get_config_defaults(&cfg);
cfg.manual_page_write = false;
rc = nvm_set_config(&cfg);
if(rc != STATUS_OK) {
return -1;
}
nvm_get_parameters(¶ms);
/* the samd21 flash doesn't use sector terminology. They use Row and
* page. A row contains 4 pages. Each pages is a fixed size. You can
* only erase based on row. Here I will map the rows to sectors and
* deal with pages inside this driver. */
samd21_flash_dev.hf_itf = &samd21_flash_funcs;
samd21_flash_dev.hf_base_addr = SAMD21_FLASH_START_ADDR;
samd21_flash_dev.hf_size = params.nvm_number_of_pages * params.page_size;
samd21_flash_dev.hf_sector_cnt =
params.nvm_number_of_pages/SAMD21_FLASH_PAGES_PER_SECTOR;
samd21_flash_dev.hf_align = 1;
return 0;
}
//! [setup]
void configure_nvm(void)
{
//! [setup_1]
struct nvm_config config_nvm;
//! [setup_1]
//! [setup_2]
nvm_get_config_defaults(&config_nvm);
//! [setup_2]
//! [setup_3]
config_nvm.manual_page_write = false;
//! [setup_3]
//! [setup_4]
nvm_set_config(&config_nvm);
//! [setup_4]
}
otError utilsFlashInit(void)
{
otError error = OT_ERROR_NONE;
struct nvm_config configNvm;
nvm_get_config_defaults(&configNvm);
configNvm.manual_page_write = false;
enum status_code status;
while ((status = nvm_set_config(&configNvm)) == STATUS_BUSY)
;
if (status != STATUS_OK)
{
error = OT_ERROR_FAILED;
}
return error;
}
/*---------------------------------------------------------------------------*/
static int
open(void)
{
if (!opened) {
struct nvm_config config_nvm;
nvm_get_config_defaults(&config_nvm);
nvm_set_config(&config_nvm);
nvm_get_parameters(¶meters);
TRACE("bootloader_number_of_pages: %ld, eeprom_number_of_pages: %ld, nvm_number_of_pages: %d, page_size: %d",
parameters.bootloader_number_of_pages,
parameters.eeprom_number_of_pages,
parameters.nvm_number_of_pages,
parameters.page_size);
while (!nvm_is_ready());
opened = 1;
}
return 1;
}
/**
* \brief Main application
*/
int main(void)
{
uint32_t len;
uint32_t curr_prog_addr;
uint32_t tmp_len;
uint8_t buff[NVMCTRL_PAGE_SIZE];
struct nvm_config config;
/* Check switch state to enter boot mode or application mode */
check_boot_mode();
/*
* Application to be programmed from APP_START_ADDRESS defined in
* conf_bootloader.h
*/
curr_prog_addr = APP_START_ADDRESS;
/* Initialize system */
system_init();
/* Configure the SPI slave module */
configure_spi();
/* Get NVM default configuration and load the same */
nvm_get_config_defaults(&config);
config.manual_page_write = false;
nvm_set_config(&config);
/* Turn on LED */
port_pin_set_output_level(BOOT_LED, false);
/* Get the length to be programmed */
len = get_length();
do {
/* Get remaining or NVMCTRL_PAGE_SIZE as block length */
tmp_len = min(NVMCTRL_PAGE_SIZE, len);
/* Acknowledge last received data */
send_ack();
/* Read data from SPI master */
fetch_data(buff, tmp_len);
/* Program the data into Flash */
program_memory(curr_prog_addr, buff, tmp_len);
/* Increment the current programming address */
curr_prog_addr += tmp_len;
/* Update the length to remaining length to be programmed */
len -= tmp_len;
/* Do this for entire length */
} while (len != 0);
/* Acknowledge last block */
send_ack();
/* Reset module and boot into application */
NVIC_SystemReset();
while (1) {
/* Inf loop */
}
}
/**
* \brief Main application
*/
int main(void)
{
char test_file_name[] = "0:sd_image.bin";
FRESULT res;
FATFS fs;
FIL file_object;
uint32_t len=0;
uint32_t curr_prog_addr=APP_START_ADDRESS;
struct nvm_config config;
UINT iRead=0;
check_boot_mode();
system_init();
delay_init();
irq_initialize_vectors();
cpu_irq_enable();
/* Initialize SD MMC stack */
sd_mmc_init();
nvm_get_config_defaults(&config);
nvm_set_config(&config);
/* Turn ON LED */
port_pin_set_output_level(BOOT_LED, false);
#ifdef __DEBUG_PRINT__
serial_port_init();
printf("\x0C\n\r-- SD/MMC Card FatFs Boot Loader --\n\r");
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
printf("Please plug an SD/MMC card in slot.\n\r");
#endif
/* Wait card present and ready */
sd_mmc_ready();
memset(&fs, 0, sizeof(FATFS));
res = f_mount(LUN_ID_SD_MMC_0_MEM, &fs);
if (FR_INVALID_DRIVE == res) {
#ifdef __DEBUG_PRINT__
printf("[FAIL] Mounting SD card failed result= %d\r\n", res);
#endif
}
#ifdef __DEBUG_PRINT__
printf("Mounting the SD card successful...\r\n");
#endif
res =f_open(&file_object,(const char *)test_file_name,FA_READ);
if(res != FR_OK) error_fatal(FILE_OPEN_ERROR);
do {
if(file_object.fsize > MAX_CODE_SIZE) error_fatal(MAX_SIZE_ERROR);
res = f_read(&file_object, (void *) buff, MAX_BUF_SIZE, &iRead);
if(res != FR_OK) error_fatal(FILE_READ_ERROR);
/* Program the read data into Flash */
if(iRead)
{
program_memory(curr_prog_addr, buff,iRead);
#ifdef __DEBUG_PRINT__
printf("*");
#endif
}
/* Increment the current programming address */
curr_prog_addr += iRead;
len += iRead;
if(len > MAX_CODE_SIZE)
error_fatal(MAX_SIZE_ERROR);
/* Do this till end of file */
} while (iRead != 0);
#ifdef __DEBUG_PRINT__
printf("\r\n[PROGRAMMING COMPLETED]..Resetting !!!!\r\n");
#endif
// Intentionally not closing the file object to reduce code size !!!.
start_application();
while(1);
// Should have reset by now !!!.
}