FREE RTOS ON NRF52810

RE: FREE RTOS ON NRF52810

Håkon Alseth — Thu, 31 May 2018 13:47:17 GMT

Hi,

Sorry that I did not address this one earlier. As the nRF52810 only has 2 RTC instances as listed in this overview of the nRF52-series (RTC0 and RTC1), you need to change this to one of these that are available in your application. Note that RTC0 is used by the softdevice.

Best regards,

Håkon

RE: FREE RTOS ON NRF52810

stone.xiang — Thu, 31 May 2018 02:20:05 GMT

Hi,

I have try according to the proposed, It could solve some problems, but there are some errors about RTC when compiling port_cmsis_systick.c, how to solve these problems?

compiling port_cmsis_systick.c...
..\..\..\..\..\..\external\freertos\portable\CMSIS\nrf52\port_cmsis_systick.c(124): error: #20: identifier "NRF_RTC2" is undefined
uint32_t systick_counter = nrf_rtc_counter_get(
ortNRF_RTC_REG);
..\..\..\..\..\..\external\freertos\portable\CMSIS\nrf52\port_cmsis_systick.c(171): error: #20: identifier "NRF_RTC2" is undefined
nrf_rtc_prescaler_set(
ortNRF_RTC_REG, portNRF_RTC_PRESCALER);
..\..\..\..\..\..\external\freertos\portable\CMSIS\nrf52\port_cmsis_systick.c(177): error: #20: identifier "RTC2_IRQn" is undefined
NVIC_SetPriority(
ortNRF_RTC_IRQn, configKERNEL_INTERRUPT_PRIORITY);
..\..\..\..\..\..\external\freertos\portable\CMSIS\nrf52\port_cmsis_systick.c: 0 warnings, 3 errors

Kind regards,

THANKS.

RE: FREE RTOS ON NRF52810

Håkon Alseth — Wed, 30 May 2018 12:54:00 GMT

Hi,

Unfortunately, there's no port without FPU for freertos in the SDK.

Could you try the proposed workaround posted here?

https://devzone.nordicsemi.com/f/nordic-q-a/30103/freertos-on-nrf52810

Kind regards,

Håkon

RE: FREE RTOS ON NRF52810

stone.xiang — Wed, 30 May 2018 12:13:20 GMT

The FREE RTOS system i used is in the SDK folder(..\nRF5_SDK_15.0.0_a53641a\nRF5_SDK_15.0.0_a53641a\external\freertos), I did'nt change the code.

What should i do to config the RTOS, or can you provide me a demo about RTOS on nrf52180.

thanks.

RE: FREE RTOS ON NRF52810

jakub — Wed, 30 May 2018 10:52:55 GMT

you are trying to use resources that are not available on nrf52810 like fpu and RTC2.