I am working on a project where I have to store the incoming UART data over BLE on the NRF52840. I am using fstorage library to store the data in flash but I am not able to store the data in flash memory (NRF Breakpoint after trying to write the data to flash)
I have attached my ble nus data handler function and the main function for reference.
bool ble_data_receive=false;
char data[100];
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
app_uart_flush();
if (p_evt->type == BLE_NUS_EVT_RX_DATA && p_evt->params.rx_data.length>0)
{
uint32_t err_code;
NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART.");
NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
{
do
{
data[i]=p_evt->params.rx_data.p_data[i];
err_code = app_uart_put(p_evt->params.rx_data.p_data[i]);
if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code);
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
}
if (p_evt->params.rx_data.p_data[p_evt->params.rx_data.length - 1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
}
printf("The length of data is: %d\n\r",p_evt->params.rx_data.length);
ble_data_receive=true;
printf("BLE Data received and bool changed to true\n\r");
}
int main(void)
{
////////////////////////////// F STORAGE CODE//////////////////////////
ret_code_t err_code;
nrf_fstorage_api_t * p_fs_api;
p_fs_api = &nrf_fstorage_sd;
err_code = nrf_fstorage_init(&fstorage, p_fs_api, NULL);
APP_ERROR_CHECK(err_code);
//////////////////////////////// BLE UART CODE/////////////////////////
bool erase_bonds;
uart_init();
log_init();
//cli_init();
timer_init();
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
advertising_start();
//cli_start();
for (;;)
{
idle_state_handle();
if(ble_data_receive==true){
printf("Commencing write operation\n\r");
err_code = nrf_fstorage_write(&fstorage, 0x60000, &data, 100, NULL);
APP_ERROR_CHECK(err_code);
if(err_code==NRF_SUCCESS){
printf("Write operation done!\n\r");
}
printf("Printing data here\n\r");
printf(&data);
ble_data_receive=false;
printf("BLE Data received and bool changed to false\n\r");
}
//cli_process();
}
}
