I am trying to save rssi data that I print to the command line to a .csv file.
In the ble_app_interactive example in the cli_m.c file, here is my code:
static void device_list_print(nrf_cli_t const * p_cli, scanned_device_t * p_device)
{
FILE * fp = fopen("rssi.csv","w");
for (uint8_t i = 0; i < DEVICE_TO_FIND_MAX; i++)
{
if (p_device[i].is_not_empty)
{
nrf_cli_fprintf(p_cli, NRF_CLI_NORMAL, "Device/RSSI(in dBm): ");
char buffer[ADDR_STRING_LEN];
int_addr_to_hex_str(buffer, BLE_GAP_ADDR_LEN, p_device[i].addr);
nrf_cli_fprintf(p_cli, NRF_CLI_NORMAL, "%6s %4s %4d\n", buffer, p_device[i].dev_name, p_device[i].rssi);
fprintf(fp, "%4d\n", p_device[i].rssi);
}
}
fclose(fp);
}
Without the following lines, the command line runs:
- FILE * fp = fopen("rssi.csv","w"); //creates my .csv file
- fprintf(fp, "%4d\n", p_device[i].rssi); //prints the p_device[i].rssi value
- fclose(fp); //closes file
With those commands, the rssi.csv file is not created.
What I have tried and did not work:
- editing the main.c file to have the .csv values
- printing numbers other than p_device[i].rssi in the Nordic Example
What works:
- running a simple program with the same commands from above works (see attached code, terminal, and file created)
What I want to know:
- how do I save the rssi value information to a .csv file?
Extra info:
Here is a picture of the cli that works without the .csv commands
