Using application timer causes hardfault in ble_app_uart (S120) ?

[Johnson]

I've modified the ble_app_uart example by adding GPIOTE so that the transmitter sends a character to the receiver when a GPIO pin is toggled. This part is working well.

Then, I used the application timer to count the number of falling edges occurring in a GPIO pin. I followed the advice in this thread.

This counter worked well if the transmitter did not link with the receiver.

When the receiver was switched on and linked to the transmitter, the counter stopped working.

Is there any way to count the number of falling edge in a GPIO pin without using the application timer?

The transmitter code was based on the ble_app_uart example over S120.

[Øyvind Karlsen]

Hi,

The application timer should work fine alongside the SoftDevice. For new designs we recommend using S130 which incorporates the functionality of s120 and s110.

What error are you getting?

See this question/answer for more help on debugging using Keil.

Best regards,

Øyvind

[Johnson]

There was no error message. It just froze.

Here is the serial output without BLE.

START: 10501  
PULSE FREQ: 1000
START: 76037
PULSE FREQ: 1000

The difference in the counter time is about 65000 = 2 seconds

Here is the serial output with BLE.

START: 0
PULSE FREQ: 1000
S  <<== Frozen