Search found 19 matches

by nullbert
Thu Mar 26, 2020 6:13 pm
Forum: ChibiOS/RT
Topic: Firmware hangs when idle thread is disabled
Replies: 5
Views: 661

Re: Firmware hangs when idle thread is disabled

Thanks.

So, I changed the main() loop to a simple infinite loop and the firmware still hangs.

What should the main() implement besides a simple infinite loop?
by nullbert
Thu Mar 26, 2020 7:52 am
Forum: ChibiOS/RT
Topic: Firmware hangs when idle thread is disabled
Replies: 5
Views: 661

Re: Firmware hangs when idle thread is disabled

Thank you. I assume you mean allow the thread to run at maximum speed, since it is now the idle thread and will run at a lower priority than other threads.

Will the idle thread get starved if other threads never sleep or block?
by nullbert
Wed Mar 25, 2020 11:11 pm
Forum: ChibiOS/RT
Topic: Firmware hangs when idle thread is disabled
Replies: 5
Views: 661

Firmware hangs when idle thread is disabled

Hello, For our application (STM32f042) we want to disable the idle thread to save flash space. When we disable it via chconf.h, our firmware hangs (never starts up). Our main() implements an infinite loop, like so: while (true) { chThdSleepMilliseconds(MAIN_THREAD_CHECK_INTERVAL_MS);...
by nullbert
Mon Oct 09, 2017 6:43 am
Forum: STM32 Support
Topic: SW-DP interface for debugging?
Replies: 3
Views: 1090

Re: SW-DP interface for debugging?

Any recommendations? Should the example code in the link simply do the job?

Thanks!
by nullbert
Sat Sep 30, 2017 4:22 am
Forum: STM32 Support
Topic: SW-DP interface for debugging?
Replies: 3
Views: 1090

Re: SW-DP interface for debugging?

Hm, it might be as simple as some inline assembly. Here's a hint of how it might work:

https://electronics.stackexchange.com/q ... d-using-gd
by nullbert
Sat Sep 30, 2017 3:53 am
Forum: STM32 Support
Topic: SW-DP interface for debugging?
Replies: 3
Views: 1090

SW-DP interface for debugging?

Hi, Does ChibiOS have any functions for using the SW-DP for outputting debuging messages over SWD? I'm using openocd as well. Having this would free up a USART we're currently using for debugging output. Barring that, can anyone recommend a software UART implementation for STM32 that could be used f...
by nullbert
Thu Jul 20, 2017 5:21 pm
Forum: STM32 Support
Topic: Flash write routine for STM32F0
Replies: 1
Views: 1957

Flash write routine for STM32F0

Hi,

We have a project using the STM32F042 and ChibiOS. We have a need to store some configuration data in the processor's flash.

Anyone have an example that writes to flash memory on F0?

Thanks for any help!
by nullbert
Sun Jul 16, 2017 5:47 pm
Forum: STM32 Support
Topic: STM32F042 CAN filter problems
Replies: 5
Views: 2652

Re: STM32F042 CAN filter problems

Hi, thanks for the update. CAN bus most definitely works fine without filters enabled. However, I didn't think the filters would be related to the baud rate settings for the peripheral ? It seems like they are completely un-related? I will try with the latest version of ChibiOS, however. Thanks again!
by nullbert
Sun Jun 18, 2017 4:45 pm
Forum: STM32 Support
Topic: STM32F042 CAN filter problems
Replies: 5
Views: 2652

Re: STM32F042 CAN filter problems

Thanks for the reply. So far I switched it to after canStart() with no effect. // Remap PA11-12 to PA9-10 for CAN RCC->APB2ENR |= RCC_APB2ENR_SYSCFGCOMPEN; SYSCFG->CFGR1 |= SYSCFG_CFGR1_PA11_PA12_RMP; /* CAN RX. */ palSetPadMode(GPIOA, 11, PAL_STM32_MODE_ALTERNATE | PAL_STM32_ALTERNATE(4)); /* CAN T...
by nullbert
Sat Jun 17, 2017 3:30 am
Forum: STM32 Support
Topic: STM32F042 CAN filter problems
Replies: 5
Views: 2652

STM32F042 CAN filter problems

Hello, I'm having problems enabling CAN filters on the STM32F042. When filters are not enabled my CAN operations work correctly. I'm on ChibiOS 16.1.0. Goal is to accept IDs between E3700 and E37FF. here's my sample code. When the line canSTM32SetFilters is enabled, I do not receive CAN messages. //...

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