SDK 9.0.0 S130 softdevice + Flash write

[HakJae]

Hi. I try to fusion 's130_nrf51_1.0.0_softdevice' and 'flash write'. I checked flash write. but when i implement flash write with s130 softdevice, it is not working. If i remove the flash_page_erase(); and flash_word_write();, it is working.

uint8_t flash_data[200]={0};

static void flash_read() { uint32_t * addr; uint32_t pg_size; uint32_t pg_num;

pg_size = NRF_FICR->CODEPAGESIZE;
pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash

	addr = (uint32_t *)(pg_size * pg_num);

	printf("%x\r\n", addr);
	for(int i=0;i<20;i++)
{
	addr++;
	flash_data[i] = (uint8_t)*addr;
	printf("%d\r\n", flash_data[i]);
}printf("\r\n");

}

void uart_error_handle(app_uart_evt_t * p_event) { if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR) { APP_ERROR_HANDLER(p_event->data.error_communication); } else if (p_event->evt_type == APP_UART_FIFO_ERROR) { APP_ERROR_HANDLER(p_event->data.error_code); } }

/** @brief Function for erasing a page in flash. *

• @param page_address Address of the first word in the page to be erased. */ static void flash_page_erase(uint32_t * page_address) { // Turn on flash erase enable and wait until the NVMC is ready: NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Een << NVMC_CONFIG_WEN_Pos);

  while (NRF_NVMC->READY == NVMC_READY_READY_Busy) { // Do nothing. }

  // Erase page: NRF_NVMC->ERASEPAGE = (uint32_t)page_address;

  while (NRF_NVMC->READY == NVMC_READY_READY_Busy) { // Do nothing. }

  // Turn off flash erase enable and wait until the NVMC is ready: NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);

  while (NRF_NVMC->READY == NVMC_READY_READY_Busy) { // Do nothing. } }

/** @brief Function for filling a page in flash with a value. *

• @param[in] address Address of the first word in the page to be filled.
• @param[in] value Value to be written to flash. */

static void flash_word_write(uint32_t * address, uint32_t value) { // Turn on flash write enable and wait until the NVMC is ready: NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);

while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
    // Do nothing.
}

*address = value;

while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
    // Do nothing.
}

// Turn off flash write enable and wait until the NVMC is ready:
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);

while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
    // Do nothing.
}

}

static void flash_default_write(void) { uint32_t * addr; uint32_t pg_size; uint32_t pg_num;

uint32_t flash_default[20] = {6, 8, 8, 7, 9, 5, 6, 4, 1, 5, 3, 4, 8, 9, 7, 3, 1, 5, 9, 6};
	
pg_size = NRF_FICR->CODEPAGESIZE;
pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash

	addr = (uint32_t *)(pg_size * pg_num);
	
for(int o=0; o<20; o++)
{
	flash_word_write(++addr, flash_default[o]);
}

// printf("check");

}

/**@brief Application main function. */ int main(void) { uint32_t * addr; uint8_t patwr; uint8_t patrd; uint8_t patold; uint32_t i; uint32_t pg_size; uint32_t pg_num; uint32_t ***[200]; uint32_t err_code; uint32_t RAM;

	int o = 0;

bool erase_bonds;
uint8_t  start_string[] = START_STRING;

// Initialize.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, false);
uart_init();
buttons_leds_init(&erase_bonds);
ble_stack_init();
gap_params_init();
services_init();
advertising_init();
conn_params_init();
	
	

// printf("%s",start_string);

// printf("Flashwrite example\n\r"); patold = 0;

pg_size = NRF_FICR->CODEPAGESIZE;
pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash
	addr = (uint32_t *)(pg_size * pg_num);
	//	printf("addr : %d\r\n", addr);
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
	
	unsigned char buf_array[10];
	unsigned char all_data[80];

	// Erase page:
	//	flash_page_erase(addr);
	
// Enter main loop.
for (;;)
{
		// Start address:

// flash_default_write();

		flash_read();

// power_manage();

		while(1);
		

/* memset(buf_array,0x00,sizeof(buf_array)); memset(all_data,0x00,sizeof(all_data));

		sprintf(buf_array,"tx_data_check");
		strcat(all_data,buf_array);
		int len=strlen(all_data);

		err_code = ble_nus_string_send(&m_nus, all_data, len+1);
		
		nrf_delay_ms(1000);

*/ } }

Why not ? softdevice and flashwrite aren't use it in together? Please help me ..

[Einar Thorsrud]

You should not access the flash directly (as in the Flash Write Example) when using the SoftDevice. Instead you have two options:

• Using the sd_flash* functions from the SoftDevice SoC library API (such as sd_flash_write and sd_flash_page_erase)
• Using the Persistent Storage Interface (pstorage)

[HakJae]

Thank you . It very helpful !

[Einar Thorsrud]

I'm glad to help. If you are satisfied with the answer I'd be happy if you could accept it.

[george]

Hi,

Has this answer changed using the S130 SoftDevice v1.0.0? I am having similar trouble with the following code. I can't seem to read/write the FLASH memory.

uint32_t data_out[1];
uint8_t word_count = 1;
uint32_t* flash_value;
uint32_t pg_size = NRF_FICR->CODEPAGESIZE;
uint32_t pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash
uint32_t addr = (uint32_t *)(pg_size * pg_num);

debug_print("Code Size: ", pg_size);
debug_print("Page Number: ", pg_num);
debug_print("Address: ", addr);




//WRITE VALUE TO FLASH
data_out[0] = 0xDEADBEEF;
 sd_flash_write(addr , data_out, 1);
debug_print("Data Out w/ Write: ", data_out[0]);

//READ VALU FROM FLASH
flash_value = (uint32_t*)addr;
data_out[0] = *flash_value;
debug_print("Data Out: ", data_out[0]);