Edit: Rephrased the question to make it easier to answer.
I used flash storage to store a couple of variables between resets in a app made from SDK 12.2, now I am attempting to migrate to SDK 14, but I can't figure out how to make the fstorage migration correct, in particular the initialization and then how to read from the flash is unclear..
I was thinking of adding DFU later, so if I should handle this differently alltogether, I am totally open for suggestions but i struggle with applying the same principle from the other examples (hrs etc)
I get this err_code = 0x00000010 which I guess translates to NRF_ERROR_INVALID_ADDR (NRF_ERROR_BASE_NUM + 16) ///< Bad Memory Address when calling nrf_fstorage_erase(&m_fs, m_fs.start_addr, 4, NULL);
I get that I am using start_addr wrong but I can't figure how to fix it..
The project is built on peripheral examples\ble_app_uart
main routine:
NRF_FSTORAGE_DEF(nrf_fstorage_t m_fs) =
{
.evt_handler = fs_event_handler,
};
/**@brief Application main function.
*/
int main(void)
{
uint32_t err_code;
bool erase_bonds;
uint32_t data;
uint32_t flash_data[4];
// Initialize.
err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
uart_init();
log_init();
err_code = nrf_fstorage_init(&m_fs, &nrf_fstorage_sd, NULL);
APP_ERROR_CHECK(err_code);
buttons_leds_init(&erase_bonds);
ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
printf("\r\nUART Start!");
NRF_LOG_INFO("UART Start!");
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
NRF_LOG_FLUSH();
// Enter main loop.
for (;;)
{
if(do_flash_operation)
{
do_flash_operation = false;
// Erase one page
NRF_LOG_INFO("Erasing a flash page at address 0x%X\r\n", (uint32_t)m_fs.start_addr);
fs_callback_flag = 1;
err_code = nrf_fstorage_erase(&m_fs, m_fs.start_addr, 4, NULL);
APP_ERROR_CHECK(err_code);
if (err_code != NRF_SUCCESS)
{
bsp_indication_set(BSP_INDICATE_FATAL_ERROR);
NRF_LOG_ERROR("erase error");
}
while(fs_callback_flag == 1) { power_manage(); }
//Read the first 4 words of the page
NRF_LOG_INFO("Data read from flash address 0x%X: \r\n", (uint32_t)m_fs.start_addr);
err_code = nrf_fstorage_read(&m_fs, m_fs.start_addr, flash_data, 32);
APP_ERROR_CHECK(err_code);
for(int i=0; i<4; i++)
{
NRF_LOG_INFO("%X ", flash_data[i]);
}
NRF_LOG_INFO("\r\n");
data = 0xAAAAAAAA;
NRF_LOG_INFO("Writing data 0x%X to address 0x%X\r\n", data, (uint32_t)m_fs.start_addr);
fs_callback_flag = 1;
err_code = nrf_fstorage_write(&m_fs, m_fs.start_addr, &data, 4, NULL); //Write data to memory address. Check it with command: nrfjprog --memrd addr --n 32
APP_ERROR_CHECK(err_code);
if (err_code != NRF_SUCCESS)
{
bsp_indication_set(BSP_INDICATE_FATAL_ERROR);
NRF_LOG_ERROR("write error");
}
while(fs_callback_flag == 1) { power_manage(); }
data = 0xBBBBBBBB;
NRF_LOG_INFO("Writing data 0x%X to address 0x%X\r\n", data, (uint32_t)m_fs.start_addr + 4);
fs_callback_flag = 1;
err_code = nrf_fstorage_write(&m_fs, m_fs.start_addr + 1, &data, 4, NULL);
APP_ERROR_CHECK(err_code);
if (err_code != NRF_SUCCESS)
{
bsp_indication_set(BSP_INDICATE_FATAL_ERROR);
NRF_LOG_ERROR("write error");
}
while(fs_callback_flag == 1) { power_manage(); }
//Read the first 4 words of the page
NRF_LOG_INFO("Data read from flash address 0x%X: \r\n", (uint32_t)m_fs.start_addr);
err_code = nrf_fstorage_read(&m_fs, m_fs.start_addr, flash_data, 32);
APP_ERROR_CHECK(err_code);
for(int i=0; i<4; i++)
{
NRF_LOG_INFO("%X ", flash_data[i]);
}
NRF_LOG_INFO("\r\n");
}
if (NRF_LOG_PROCESS() == false)
{
NRF_LOG_FLUSH();
power_manage();
}
NRF_LOG_FLUSH();
}
}
temp.link to project (upload file doesn't work??)
