52840 LE CODED App_UART with GPIOTE - crash

[Avi]

The code is running on 52832 (BLE) and transmit msg over BLE (NUS) each time GPIO is active (GPIOTE).

But same code (after adding LE CODED Phy) is crashing once it reached the GPIOTE initialization 

What can be the problem?

here is my main code:

int main(void)
{
bool erase_bonds;
uint32_t err_code;
// Initialize.
//uart_init();
log_init();
NRF_LOG_INFO("Start");
timers_init();
buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init();
gap_params_init();
app_timer_start(bas_timer, APP_TIMER_TICKS(20* 1000), NULL);
gatt_init();

services_init();
advertising_init();
conn_params_init();
err_code = sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_ADV, m_advertising.adv_handle, TX_POWER);
APP_ERROR_CHECK(err_code);
if (!nrf_drv_gpiote_is_init())
{
err_code = nrf_drv_gpiote_init();
VERIFY_SUCCESS(err_code);
}
nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_HITOLO(true);
in_config.pull = NRF_GPIO_PIN_PULLUP;
err_code = nrf_drv_gpiote_in_init(PIN_IN1, &in_config, in_pin_handler1);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_gpiote_in_init(PIN_IN2, &in_config, in_pin_handler2);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_gpiote_in_init(PIN_IN3, &in_config, in_pin_handler3);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_gpiote_in_init(PIN_IN4, &in_config, in_pin_handler4);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_gpiote_in_init(PIN_IN5, &in_config, in_pin_handler5);
APP_ERROR_CHECK(err_code);

nrf_drv_gpiote_in_event_enable(PIN_IN1, true);
nrf_drv_gpiote_in_event_enable(PIN_IN2, true);
nrf_drv_gpiote_in_event_enable(PIN_IN3, true);
nrf_drv_gpiote_in_event_enable(PIN_IN4, true);
nrf_drv_gpiote_in_event_enable(PIN_IN5, true);

// Start execution.
//printf("\r\nUART started.\r\n");
NRF_LOG_INFO("Debug logging for UART over RTT started.");
advertising_start();

[Avi]

After debug, I can see that I reach a warning of RAM size and then next line it crashes.

If it is RAM issue, how do I know which values should I use:

// Start of RAM, obtained from linker symbol.
uint32_t const app_ram_start_link = *p_app_ram_start;

ret_code_t ret_code = sd_ble_enable(p_app_ram_start);
if (*p_app_ram_start > app_ram_start_link)
{
NRF_LOG_WARNING("Insufficient RAM allocated for the SoftDevice.");

NRF_LOG_WARNING("Change the RAM start location from 0x%x to 0x%x.",
app_ram_start_link, *p_app_ram_start);
NRF_LOG_WARNING("Maximum RAM size for application is 0x%x.",
ram_end_address_get() - (*p_app_ram_start));
}

[Vidar Berg]

This warning means you have to adjust the RAM settings in your linker settings. The debug log should tell you what settings to use.

What IDE/toolchain are you using?

[Avi]

Yes, I added the debug flag, but I don't see any information.

 The code stops at:

NRF_BREAKPOINT_COND;
// On assert, the system can only recover with a reset.

[Vidar Berg]

Which SDK version are you using? Older versions (pre-SDK15 if I recall correctly) did not include logging of the assert information inside the app error handler.

[Avi]

I am using SDK16. As I mentioned, the code works with 52832.

[Avi]

i.e. it works with pca10040 and fails on pca10056

[Vidar Berg]

Sorry, I see you mentioned it now. I assumed you used the 52840 since you were attempting to enabled CODED PHY, which is not supported by the 52832 RADIO peripheral.

But just to make sure, are you trying to run the exact same project on that works on 52832 on the nRF52840 DK? That will not work because it requires different startup files, Softdevice, and memory configuration.

[Avi]

I have similar code (with changes related to the PHY). 

The code includes 5 GPIOTE events and when they are triggered, the NUS send a msg over BLE.

It works with all the 5 with 52832.

With 52840 it works only with 1 GPIOTE and the msg is LE CODED as designed.

When I have more than 1 GPIOTE, the code is crashing on RAM and I don't know how to select the correct value (if this is indeed the reason)

[Vidar Berg]

Please check if the GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS config setting in sdk_config.h is set to '5' or more.

[Avi]

I found the problem - one of the GPIOTE was on pin P0.11

If I use other pins: 13,14,15,16,17 - all works good

Is there any issue with P0.11?

[Vidar Berg]

It might be assigned by the BSP module already. P0.11 is connected to button 1 on the DK. You may try to remove the call to bsp_btn_ble_init() in your code, if you haven't done so already.