Hi,
This error has been bugging me for few days and I still have no luck in troubleshooting it.
Recently, I just changed my work project from nrf51822 device to nrf52832. I am planning to develop a system which it could communicate with a temperature sensor using TWI, then send data across BLE within a specific time interval. I have combined these 3 examples into my project:
- ble_app_uart
- timer
- twi_sensor
The ble_app_uart and timer work perfectly fine at first. But problem occurs when I integrated twi_sensor source code on top of it. When I looked into the code lines using JTag debugger console, it seems like the program always stuck inside the twi_transfer() loop.
I have tried to look into the similar issue raised by others in this community, and found that the multiple/nested interrupt priorities might be the culprit. I have followed some guidance from this thread but still no luck to resolve it.
These are some sections of my code. Most of the structures are based on the example files. I am using pin 0.10 for SCL and pin 0.03 for SDA. The temperature sensor is TMP117 and I am pretty sure it has no hardware/register errors (Have tested the temperature sensor module with Arduino Uno and it works just fine).
BLE and UART modules (Pretty much similar to the example files):
/**@brief Function for assert macro callback.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyse
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] p_file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for the GAP initialization.
*
* @details This function will set up all the necessary GAP (Generic Access Profile) parameters of
* the device. It also sets the permissions and appearance.
*/
static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *) DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the data from the Nordic UART Service.
*
* @details This function will process the data received from the Nordic UART BLE Service and send
* it to the UART module.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_data Data to be send to UART module.
* @param[in] length Length of the data.
*/
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
if(p_data[0] == 'K'){
unsigned char data_arr[20] = {"Received! All Clear\n"}; // 20 byte msg
ble_nus_string_send(&m_nus, data_arr, 20);
}
/*
for (uint32_t i = 0; i < length; i++)
{
while(app_uart_put(p_data[i]) != NRF_SUCCESS);
}
while(app_uart_put('\n') != NRF_SUCCESS);
*/
}
/**@snippet [Handling the data received over BLE] */
/**@brief Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
uint32_t err_code;
ble_nus_init_t nus_init;
memset(&nus_init, 0, sizeof(nus_init));
nus_init.data_handler = nus_data_handler;
err_code = ble_nus_init(&m_nus, &nus_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling an event from the Connection Parameters Module.
*
* @details This function will be called for all events in the Connection Parameters Module
* which are passed to the application.
*
* @note All this function does is to disconnect. This could have been done by simply setting
* the disconnect_on_fail config parameter, but instead we use the event handler
* mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
uint32_t err_code;
if(p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling errors from the Connection Parameters module.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
// Go to system-off mode (this function will not return; wakeup will cause a reset).
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling advertising events.
*
* @details This function will be called for advertising events which are passed to the application.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
uint32_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
default:
break;
}
}
/**@brief Function for the application's SoftDevice event handler.
*
* @param[in] p_ble_evt SoftDevice event.
*/
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
break;
case BLE_GAP_EVT_DISCONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported
err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
APP_ERROR_CHECK(err_code);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for dispatching a SoftDevice event to all modules with a SoftDevice
* event handler.
*
* @details This function is called from the SoftDevice event interrupt handler after a
* SoftDevice event has been received.
*
* @param[in] p_ble_evt SoftDevice event.
*/
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
ble_conn_params_on_ble_evt(p_ble_evt);
ble_nus_on_ble_evt(&m_nus, p_ble_evt);
on_ble_evt(p_ble_evt);
ble_advertising_on_ble_evt(p_ble_evt);
bsp_btn_ble_on_ble_evt(p_ble_evt);
}
/**@brief Function for the SoftDevice initialization.
*
* @details This function initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
uint32_t err_code;
// Initialize SoftDevice.
SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, NULL);
ble_enable_params_t ble_enable_params;
err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
PERIPHERAL_LINK_COUNT,
&ble_enable_params);
APP_ERROR_CHECK(err_code);
//Check the ram settings against the used number of links
CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
// Enable BLE stack.
err_code = softdevice_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
// Subscribe for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
err_code = ble_advertising_restart_without_whitelist();
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
default:
break;
}
}
/**@brief Function for handling app_uart events.
*
* @details This function will receive a single character from the app_uart module and append it to
* a string. The string will be be sent over BLE when the last character received was a
* 'new line' i.e '\n' (hex 0x0D) or if the string has reached a length of
* @ref NUS_MAX_DATA_LENGTH.
*/
/**@snippet [Handling the data received over UART] */
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint8_t index = 0;
uint32_t err_code;
switch (p_event->evt_type)
{
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
{
err_code = ble_nus_string_send(&m_nus, data_array, index);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
index = 0;
}
break;
case APP_UART_COMMUNICATION_ERROR:
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
/**@snippet [Handling the data received over UART] */
/**@brief Function for initializing the UART module.
*/
/**@snippet [UART Initialization] */
static void uart_init(void)
{
uint32_t err_code;
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_ENABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT( &comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOW,
err_code);
APP_ERROR_CHECK(err_code);
}
/**@snippet [UART Initialization] */
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advdata_t advdata;
ble_advdata_t scanrsp;
// Build advertising data struct to pass into @ref ble_advertising_init.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = false;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
memset(&scanrsp, 0, sizeof(scanrsp));
scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
scanrsp.uuids_complete.p_uuids = m_adv_uuids;
ble_adv_modes_config_t options = {0};
options.ble_adv_fast_enabled = BLE_ADV_FAST_ENABLED;
options.ble_adv_fast_interval = APP_ADV_INTERVAL;
options.ble_adv_fast_timeout = APP_ADV_TIMEOUT_IN_SECONDS;
err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(bool * p_erase_bonds)
{
bsp_event_t startup_event;
uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for placing the application in low power state while waiting for events.
*/
static void power_manage(void)
{
uint32_t err_code = sd_app_evt_wait();
APP_ERROR_CHECK(err_code);
}
Functions for TWI modules:
/**
* @brief Function for setting TMP117 temperature sensor
*/
void TMP117_set_mode(void)
{
ret_code_t err_code;
// Writing to registers
uint8_t reg1[3] = {0x02, 0x0D, 0x80};
uint8_t reg2[3] = {0x03, 0x0C, 0x00};
uint8_t reg3[3] = {0x01, 0x02, 0x20};
uint8_t reg4[3] = {0x07, 0x00, 0x00};
err_code = nrf_drv_twi_tx(&tmp117_twi, TMP117_ADDR, reg1, sizeof(reg1), false);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_twi_tx(&tmp117_twi, TMP117_ADDR, reg2, 3, false);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_twi_tx(&tmp117_twi, TMP117_ADDR, reg3, 3, false);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_twi_tx(&tmp117_twi, TMP117_ADDR, reg4, 3, false);
APP_ERROR_CHECK(err_code);
//while(m_set_mode_done == false);
}
/**
* @brief TWI events handler.
*/
void twi_handler(nrf_drv_twi_evt_t const * p_event, void * p_context)
{
ret_code_t err_code;
static sample_t m_sample;
switch(p_event->type)
{
case NRF_DRV_TWI_EVT_DONE:
if ((p_event->type == NRF_DRV_TWI_EVT_DONE) &&
(p_event->xfer_desc.type == NRF_DRV_TWI_XFER_TX))
{
if(m_set_mode_done != true)
{
m_set_mode_done = true;
return;
}
m_xfer_done = false;
/* Read 2 bytes from the specified address. */
err_code = nrf_drv_twi_rx(&tmp117_twi, TMP117_ADDR, (uint8_t*)&m_sample, sizeof(m_sample));
APP_ERROR_CHECK(err_code);
}
else
{
m_xfer_done = true;
}
break;
default:
break;
}
}
/**
* @brief TWI initialization.
*/
void twi_init (void)
{
ret_code_t err_code;
const nrf_drv_twi_config_t twi_config = {
.scl = 10,
.sda = 3,
.frequency = NRF_TWI_FREQ_100K,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH
};
err_code = nrf_drv_twi_init(&tmp117_twi, &twi_config, NULL, NULL); //Disable handler for testing purpose (But still no luck)
APP_ERROR_CHECK(err_code);
nrf_drv_twi_enable(&tmp117_twi);
}
Timer event handler:
/**
* @brief Handler for timer events.
*/
static void clock_timer_handler(void *p_context)
{
ret_code_t err_code;
uint8_t temp_data[2] = {0, 0};
unsigned char msg[20] = {"\0"};
sprintf((char*)msg, "Ready");
ble_nus_string_send(&m_nus, msg, 20);
//err_code = nrf_drv_twi_rx(&tmp117_twi, TMP117_ADDR, temp_data, 2);
//APP_ERROR_CHECK(err_code);
sprintf((char*)msg,"Temp: %d\n", temp_data[0]);
ble_nus_string_send(&m_nus, msg, 20);
}
Main function:
int main(void)
{
uint32_t err_code;
bool erase_bonds;
unsigned char data_buffer[20] = {"Initialising...\n"};
// Initialize.
uart_init();
twi_init();
TMP117_set_mode();
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
ble_stack_init();
gap_params_init();
services_init();
advertising_init();
conn_params_init();
err_code = NRF_LOG_INIT();
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
//Configure TIMER for broadcasting data
err_code = app_timer_create(&clock_timer, APP_TIMER_MODE_REPEATED, clock_timer_handler);
err_code = app_timer_start(clock_timer, APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER), NULL);
ble_nus_string_send(&m_nus, data_buffer, 20);
uint8_t reg = 0;
// Enter main loop
for (;;)
{
do
{
power_manage();
}
while(m_xfer_done == false);
err_code = nrf_drv_twi_tx(&tmp117_twi, TMP117_ADDR, 0x00, 1, true);
APP_ERROR_CHECK(err_code);
m_xfer_done = false;
}
}
Have checked my configuration file and seems there is no significant problems:
#define PERIPHERAL_RESOURCE_SHARING_ENABLED 0
/* CLOCK */
#define CLOCK_ENABLED 0
#if (CLOCK_ENABLED == 1)
#define CLOCK_CONFIG_XTAL_FREQ NRF_CLOCK_XTALFREQ_Default
#define CLOCK_CONFIG_LF_SRC NRF_CLOCK_LF_SRC_Xtal
#define CLOCK_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#endif
/* GPIOTE */
#define GPIOTE_ENABLED 1
#if (GPIOTE_ENABLED == 1)
#define GPIOTE_CONFIG_USE_SWI_EGU false
#define GPIOTE_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 6
#endif
/* TIMER */
#define TIMER0_ENABLED 0
#if (TIMER0_ENABLED == 1)
#define TIMER0_CONFIG_FREQUENCY NRF_TIMER_FREQ_16MHz
#define TIMER0_CONFIG_MODE TIMER_MODE_MODE_Timer
#define TIMER0_CONFIG_BIT_WIDTH TIMER_BITMODE_BITMODE_32Bit
#define TIMER0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TIMER0_INSTANCE_INDEX 0
#endif
#define TIMER1_ENABLED 1
#if (TIMER1_ENABLED == 1)
#define TIMER1_CONFIG_FREQUENCY NRF_TIMER_FREQ_16MHz
#define TIMER1_CONFIG_MODE TIMER_MODE_MODE_Timer
#define TIMER1_CONFIG_BIT_WIDTH TIMER_BITMODE_BITMODE_16Bit
#define TIMER1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TIMER1_INSTANCE_INDEX (TIMER0_ENABLED)
#endif
#define TIMER2_ENABLED 0
#if (TIMER2_ENABLED == 1)
#define TIMER2_CONFIG_FREQUENCY NRF_TIMER_FREQ_16MHz
#define TIMER2_CONFIG_MODE TIMER_MODE_MODE_Timer
#define TIMER2_CONFIG_BIT_WIDTH TIMER_BITMODE_BITMODE_16Bit
#define TIMER2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TIMER2_INSTANCE_INDEX (TIMER1_ENABLED+TIMER0_ENABLED)
#endif
#define TIMER3_ENABLED 0
#if (TIMER3_ENABLED == 1)
#define TIMER3_CONFIG_FREQUENCY NRF_TIMER_FREQ_16MHz
#define TIMER3_CONFIG_MODE TIMER_MODE_MODE_Timer
#define TIMER3_CONFIG_BIT_WIDTH TIMER_BITMODE_BITMODE_16Bit
#define TIMER3_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TIMER3_INSTANCE_INDEX (TIMER2_ENABLED+TIMER1_ENABLED+TIMER0_ENABLED)
#endif
#define TIMER4_ENABLED 0
#if (TIMER4_ENABLED == 1)
#define TIMER4_CONFIG_FREQUENCY NRF_TIMER_FREQ_16MHz
#define TIMER4_CONFIG_MODE TIMER_MODE_MODE_Timer
#define TIMER4_CONFIG_BIT_WIDTH TIMER_BITMODE_BITMODE_16Bit
#define TIMER4_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TIMER4_INSTANCE_INDEX (TIMER3_ENABLED+TIMER2_ENABLED+TIMER1_ENABLED+TIMER0_ENABLED)
#endif
#define TIMER_COUNT (TIMER0_ENABLED + TIMER1_ENABLED + TIMER2_ENABLED + TIMER3_ENABLED + TIMER4_ENABLED)
/* RTC */
#define RTC0_ENABLED 0
#if (RTC0_ENABLED == 1)
#define RTC0_CONFIG_FREQUENCY 32678
#define RTC0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define RTC0_CONFIG_RELIABLE false
#define RTC0_INSTANCE_INDEX 0
#endif
#define RTC1_ENABLED 1
#if (RTC1_ENABLED == 1)
#define RTC1_CONFIG_FREQUENCY 32768
#define RTC1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define RTC1_CONFIG_RELIABLE false
#define RTC1_INSTANCE_INDEX (RTC0_ENABLED)
#endif
#define RTC_COUNT (RTC0_ENABLED+RTC1_ENABLED)
#define NRF_MAXIMUM_LATENCY_US 2000
/* RNG */
#define RNG_ENABLED 0
#if (RNG_ENABLED == 1)
#define RNG_CONFIG_ERROR_CORRECTION true
#define RNG_CONFIG_POOL_SIZE 8
#define RNG_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#endif
/* PWM */
#define PWM0_ENABLED 0
#if (PWM0_ENABLED == 1)
#define PWM0_CONFIG_OUT0_PIN 2
#define PWM0_CONFIG_OUT1_PIN 3
#define PWM0_CONFIG_OUT2_PIN 4
#define PWM0_CONFIG_OUT3_PIN 5
#define PWM0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define PWM0_CONFIG_BASE_CLOCK NRF_PWM_CLK_1MHz
#define PWM0_CONFIG_COUNT_MODE NRF_PWM_MODE_UP
#define PWM0_CONFIG_TOP_VALUE 1000
#define PWM0_CONFIG_LOAD_MODE NRF_PWM_LOAD_COMMON
#define PWM0_CONFIG_STEP_MODE NRF_PWM_STEP_AUTO
#define PWM0_INSTANCE_INDEX 0
#endif
#define PWM1_ENABLED 0
#if (PWM1_ENABLED == 1)
#define PWM1_CONFIG_OUT0_PIN 2
#define PWM1_CONFIG_OUT1_PIN 3
#define PWM1_CONFIG_OUT2_PIN 4
#define PWM1_CONFIG_OUT3_PIN 5
#define PWM1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define PWM1_CONFIG_BASE_CLOCK NRF_PWM_CLK_1MHz
#define PWM1_CONFIG_COUNT_MODE NRF_PWM_MODE_UP
#define PWM1_CONFIG_TOP_VALUE 1000
#define PWM1_CONFIG_LOAD_MODE NRF_PWM_LOAD_COMMON
#define PWM1_CONFIG_STEP_MODE NRF_PWM_STEP_AUTO
#define PWM1_INSTANCE_INDEX (PWM0_ENABLED)
#endif
#define PWM2_ENABLED 0
#if (PWM2_ENABLED == 1)
#define PWM2_CONFIG_OUT0_PIN 2
#define PWM2_CONFIG_OUT1_PIN 3
#define PWM2_CONFIG_OUT2_PIN 4
#define PWM2_CONFIG_OUT3_PIN 5
#define PWM2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define PWM2_CONFIG_BASE_CLOCK NRF_PWM_CLK_1MHz
#define PWM2_CONFIG_COUNT_MODE NRF_PWM_MODE_UP
#define PWM2_CONFIG_TOP_VALUE 1000
#define PWM2_CONFIG_LOAD_MODE NRF_PWM_LOAD_COMMON
#define PWM2_CONFIG_STEP_MODE NRF_PWM_STEP_AUTO
#define PWM2_INSTANCE_INDEX (PWM0_ENABLED + PWM1_ENABLED)
#endif
#define PWM_COUNT (PWM0_ENABLED + PWM1_ENABLED + PWM2_ENABLED)
/* SPI */
#define SPI0_ENABLED 0
#if (SPI0_ENABLED == 1)
#define SPI0_USE_EASY_DMA 0
#define SPI0_CONFIG_SCK_PIN 2
#define SPI0_CONFIG_MOSI_PIN 3
#define SPI0_CONFIG_MISO_PIN 4
#define SPI0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPI0_INSTANCE_INDEX 0
#endif
#define SPI1_ENABLED 0
#if (SPI1_ENABLED == 1)
#define SPI1_USE_EASY_DMA 0
#define SPI1_CONFIG_SCK_PIN 2
#define SPI1_CONFIG_MOSI_PIN 3
#define SPI1_CONFIG_MISO_PIN 4
#define SPI1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPI1_INSTANCE_INDEX (SPI0_ENABLED)
#endif
#define SPI2_ENABLED 0
#if (SPI2_ENABLED == 1)
#define SPI2_USE_EASY_DMA 0
#define SPI2_CONFIG_SCK_PIN 2
#define SPI2_CONFIG_MOSI_PIN 3
#define SPI2_CONFIG_MISO_PIN 4
#define SPI2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPI2_INSTANCE_INDEX (SPI0_ENABLED + SPI1_ENABLED)
#endif
#define SPI_COUNT (SPI0_ENABLED + SPI1_ENABLED + SPI2_ENABLED)
/* SPIS */
#define SPIS0_ENABLED 0
#if (SPIS0_ENABLED == 1)
#define SPIS0_CONFIG_SCK_PIN 2
#define SPIS0_CONFIG_MOSI_PIN 3
#define SPIS0_CONFIG_MISO_PIN 4
#define SPIS0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPIS0_INSTANCE_INDEX 0
#endif
#define SPIS1_ENABLED 0
#if (SPIS1_ENABLED == 1)
#define SPIS1_CONFIG_SCK_PIN 2
#define SPIS1_CONFIG_MOSI_PIN 3
#define SPIS1_CONFIG_MISO_PIN 4
#define SPIS1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPIS1_INSTANCE_INDEX SPIS0_ENABLED
#endif
#define SPIS2_ENABLED 0
#if (SPIS2_ENABLED == 1)
#define SPIS2_CONFIG_SCK_PIN 2
#define SPIS2_CONFIG_MOSI_PIN 3
#define SPIS2_CONFIG_MISO_PIN 4
#define SPIS2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define SPIS2_INSTANCE_INDEX (SPIS0_ENABLED + SPIS1_ENABLED)
#endif
#define SPIS_COUNT (SPIS0_ENABLED + SPIS1_ENABLED + SPIS2_ENABLED)
/* UART */
#define UART0_ENABLED 1
#if (UART0_ENABLED == 1)
#define UART0_CONFIG_HWFC NRF_UART_HWFC_DISABLED
#define UART0_CONFIG_PARITY NRF_UART_PARITY_EXCLUDED
#define UART0_CONFIG_BAUDRATE NRF_UART_BAUDRATE_38400
#define UART0_CONFIG_PSEL_TXD 6
#define UART0_CONFIG_PSEL_RXD 8
#define UART0_CONFIG_PSEL_CTS 7
#define UART0_CONFIG_PSEL_RTS 5
#define UART0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#ifdef NRF52
#define UART0_CONFIG_USE_EASY_DMA false
//Compile time flag
#define UART_EASY_DMA_SUPPORT 1
#define UART_LEGACY_SUPPORT 1
#endif //NRF52
#endif
#define TWI0_ENABLED 1
#if (TWI0_ENABLED == 1)
#define TWI0_USE_EASY_DMA 0
#define TWI0_CONFIG_FREQUENCY NRF_TWI_FREQ_100K
#define TWI0_CONFIG_SCL 0
#define TWI0_CONFIG_SDA 1
#define TWI0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TWI0_INSTANCE_INDEX 0
#endif
#define TWI1_ENABLED 0
#if (TWI1_ENABLED == 1)
#define TWI1_USE_EASY_DMA 0
#define TWI1_CONFIG_FREQUENCY NRF_TWI_FREQ_100K
#define TWI1_CONFIG_SCL 0
#define TWI1_CONFIG_SDA 1
#define TWI1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TWI1_INSTANCE_INDEX (TWI0_ENABLED)
#endif
#define TWI_COUNT (TWI0_ENABLED + TWI1_ENABLED)
/* TWIS */
#define TWIS0_ENABLED 0
#if (TWIS0_ENABLED == 1)
#define TWIS0_CONFIG_ADDR0 0
#define TWIS0_CONFIG_ADDR1 0 /* 0: Disabled */
#define TWIS0_CONFIG_SCL 0
#define TWIS0_CONFIG_SDA 1
#define TWIS0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TWIS0_INSTANCE_INDEX 0
#endif
#define TWIS1_ENABLED 0
#if (TWIS1_ENABLED == 1)
#define TWIS1_CONFIG_ADDR0 0
#define TWIS1_CONFIG_ADDR1 0 /* 0: Disabled */
#define TWIS1_CONFIG_SCL 0
#define TWIS1_CONFIG_SDA 1
#define TWIS1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define TWIS1_INSTANCE_INDEX (TWIS0_ENABLED)
#endif
#define TWIS_COUNT (TWIS0_ENABLED + TWIS1_ENABLED)
/* For more documentation see nrf_drv_twis.h file */
#define TWIS_ASSUME_INIT_AFTER_RESET_ONLY 0
/* For more documentation see nrf_drv_twis.h file */
#define TWIS_NO_SYNC_MODE 0
/* QDEC */
#define QDEC_ENABLED 0
#if (QDEC_ENABLED == 1)
#define QDEC_CONFIG_REPORTPER NRF_QDEC_REPORTPER_10
#define QDEC_CONFIG_SAMPLEPER NRF_QDEC_SAMPLEPER_16384us
#define QDEC_CONFIG_PIO_A 1
#define QDEC_CONFIG_PIO_B 2
#define QDEC_CONFIG_PIO_LED 3
#define QDEC_CONFIG_LEDPRE 511
#define QDEC_CONFIG_LEDPOL NRF_QDEC_LEPOL_ACTIVE_HIGH
#define QDEC_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define QDEC_CONFIG_DBFEN false
#define QDEC_CONFIG_SAMPLE_INTEN false
#endif
/* SAADC */
#define SAADC_ENABLED 0
#if (SAADC_ENABLED == 1)
#define SAADC_CONFIG_RESOLUTION NRF_SAADC_RESOLUTION_10BIT
#define SAADC_CONFIG_OVERSAMPLE NRF_SAADC_OVERSAMPLE_DISABLED
#define SAADC_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#endif
/* PDM */
#define PDM_ENABLED 0
#if (PDM_ENABLED == 1)
#define PDM_CONFIG_MODE NRF_PDM_MODE_MONO
#define PDM_CONFIG_EDGE NRF_PDM_EDGE_LEFTFALLING
#define PDM_CONFIG_CLOCK_FREQ NRF_PDM_FREQ_1032K
#define PDM_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#endif
/* LPCOMP */
#define LPCOMP_ENABLED 0
#if (LPCOMP_ENABLED == 1)
#define LPCOMP_CONFIG_REFERENCE NRF_LPCOMP_REF_SUPPLY_4_8
#define LPCOMP_CONFIG_DETECTION NRF_LPCOMP_DETECT_DOWN
#define LPCOMP_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#define LPCOMP_CONFIG_INPUT NRF_LPCOMP_INPUT_0
#endif
/* WDT */
#define WDT_ENABLED 0
#if (WDT_ENABLED == 1)
#define WDT_CONFIG_BEHAVIOUR NRF_WDT_BEHAVIOUR_RUN_SLEEP
#define WDT_CONFIG_RELOAD_VALUE 2000
#define WDT_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_HIGH
#endif
/* SWI EGU */
#ifdef NRF52
#define EGU_ENABLED 0
#endif
/* I2S */
#define I2S_ENABLED 0
#if (I2S_ENABLED == 1)
#define I2S_CONFIG_SCK_PIN 22
#define I2S_CONFIG_LRCK_PIN 23
#define I2S_CONFIG_MCK_PIN NRF_DRV_I2S_PIN_NOT_USED
#define I2S_CONFIG_SDOUT_PIN 24
#define I2S_CONFIG_SDIN_PIN 25
#define I2S_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_HIGH
#define I2S_CONFIG_MASTER NRF_I2S_MODE_MASTER
#define I2S_CONFIG_FORMAT NRF_I2S_FORMAT_I2S
#define I2S_CONFIG_ALIGN NRF_I2S_ALIGN_LEFT
#define I2S_CONFIG_SWIDTH NRF_I2S_SWIDTH_16BIT
#define I2S_CONFIG_CHANNELS NRF_I2S_CHANNELS_STEREO
#define I2S_CONFIG_MCK_SETUP NRF_I2S_MCK_32MDIV8
#define I2S_CONFIG_RATIO NRF_I2S_RATIO_256X
#endif
#include "nrf_drv_config_validation.h"
#endif // NRF_DRV_CONFIG_H
UPDATED STATUS ON 18TH JAN 2019
Tried to add the pre-processor macro CONFIG_NFCT_PINS_AS_GPIOS or changed my SCL pin from P0.10 to P0.03, yet the problem still exists.
UPDATED STATUS ON 22ND JAN 2019
Edited some code to avoid confusion. Thanks Ashish!
