Hello everyone,
I've noticed that the Bluetooth and ADC work great together BUT I'm having issues when trying to turn on & off the Bluetooth.
I've tested the on & off API for the Bluetooth and they work as expected. However, when I try to switch the Bluetooth off, and then back on my firmware crashes, if the ADC is on.
I'm using nRF5_SDK_17.0.2_d674dde, the ble_peripheral/ble_app_uart and here is my code in main:
int main(void){
user_adc_init();
user_bluetooth_init();
nrf_delay_ms(5000);
user_bluetooth_deinit();
nrf_delay_ms(5000);
user_bluetooth_init();
nrf_delay_ms(5000);
user_bluetooth_deinit();
nrf_delay_ms(5000);
user_bluetooth_init();
nrf_delay_ms(5000);
user_bluetooth_deinit();
nrf_delay_ms(5000);
while(1){ }
}
Here is the source for the BLE API:
volatile uint32_t ble_enabled = 0;
void user_bluetooth_init(void){
ret_code_t err;
const nrf_clock_lf_cfg_t sd_lf_config = {
.source = NRF_SDH_CLOCK_LF_SRC,
.rc_ctiv = NRF_SDH_CLOCK_LF_RC_CTIV,
.rc_temp_ctiv = NRF_SDH_CLOCK_LF_RC_TEMP_CTIV,
.accuracy = NRF_SDH_CLOCK_LF_ACCURACY
};
static uint32_t first_time = 1;
if(!ble_enabled){
DEBUGOUT("BLE start\n");
ble_enabled = 1;
central_connected = 0;
if(first_time){
timers_init();
ble_stack_init(first_time);
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
first_time = 0;
}
else{
DEBUGOUT("BLE start\n");
err = sd_softdevice_enable(&sd_lf_config, fault_handler);
APP_ERROR_CHECK(err);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err);
// Enable BLE stack.
err = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err);
}
user_bluetooth_advertising_start();
}
}
void user_bluetooth_deinit(void){
if(ble_enabled){
ble_enabled = 0;
sd_softdevice_disable();
DEBUGOUT("BLE stop\n");
}
}
Here is the source for the ADC API:
void user_adc_init(void){
nrfx_saadc_config_t adc_init_struct;
nrf_saadc_channel_config_t channel_config = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN5);
adc_init_struct.resolution = NRF_SAADC_RESOLUTION_12BIT;
adc_init_struct.oversample = NRF_SAADC_OVERSAMPLE_DISABLED ;
adc_init_struct.interrupt_priority = 1;
adc_init_struct.low_power_mode = 0;
nrf_drv_saadc_init(&adc_init_struct, saadc_callback);
nrf_drv_saadc_channel_init(0, &channel_config);
nrf_drv_saadc_buffer_convert(m_buffer_pool, CONFIG_USER_ADC_SAMPLES_CHARGE_PUMP);
}
I could try and use direct register access, but this is a brand new project and I don't want to mess things up from the beginning. I want to use only library functions.
Regards,
L. B.
