Search found 9 matches

by Ludeks
Fri Jan 29, 2021 12:11 am
Forum: Development and Feedback
Topic: [DEV] RP2040 support
Replies: 63
Views: 3196

Re: [NOTES] Multi Core support

That's great news to hear! :) With regards to the multi core communication, the cores are interconnected through 2 FIFOs, writing to the FIFO from one core can raise an interrupt on the other core. See section 2.3.1.4. Inter-processor FIFOs (Mailboxes) ... Each FIFO is 32 bits wide, and eight entrie...
by Ludeks
Wed Jan 27, 2021 3:48 pm
Forum: General Support
Topic: TinyUSB
Replies: 6
Views: 998

Re: TinyUSB

mobyfab wrote:I'm working on a port, I'll do a pull request with one or two examples, but if you find any mistakes below let me know:
https://github.com/hathach/tinyusb/comp ... in:chibios


Did you open any PR there?
by Ludeks
Wed Jan 27, 2021 3:29 pm
Forum: Development and Feedback
Topic: [DEV] RP2040 support
Replies: 63
Views: 3196

Re: [NOTES] Multi Core support

Debugging with SWD should be definitely possible and even encouraged to upload the firmware. The official docs mention plugging the SWD port from the Pico into UART on another Pico or Raspberry Pi computer. Also, a custom OpenOCD build might be needed. See section 5. of https://datasheets.raspberryp...
by Ludeks
Tue Jan 26, 2021 11:26 pm
Forum: Development and Feedback
Topic: [DEV] RP2040 support
Replies: 63
Views: 3196

[DEV] RP2040 Support

Now next step is: how to load code in those? You should be able to connect the device as a USB Mass Storage and just drop UF2 firmware onto it. All documentations can be found on this site: https://www.raspberrypi.org/documentation/pico/getting-started/ - RP2040 datasheet - Pico datasheet - Getting...
by Ludeks
Thu Jan 21, 2021 7:32 pm
Forum: Development and Feedback
Topic: [DEV] RP2040 support
Replies: 63
Views: 3196

Re: [NOTES] Multi Core support

I have also ordered a piece, I'm very excited. :)
by Ludeks
Thu Jan 21, 2021 2:47 pm
Forum: Development and Feedback
Topic: [DEV] RP2040 support
Replies: 63
Views: 3196

[DEV] RP2040 support

Raspberry Pi Pico has been just released with Dual-core Arm Cortex M0+ processor at 133 MHz and some interesting features like inter-core FIFOs and Hardware Spinlocks.

From hobbyist perspective, I think it would be very interesting to get ChibiOS running on this device.
by Ludeks
Tue Mar 15, 2016 8:48 am
Forum: STM32 Support
Topic: Chip resetting after every sleep
Replies: 5
Views: 1680

Re: Chip resetting after every sleep

Hello guys, I finally discovered what was wrong :-) The program was fine, the problem was with the way how I flashed it and executed it. I used the BOOT pins to select the internal bootloader, then I uploaded the hex file over uart using the stm32flash utility and then I instructed the utitility to ...
by Ludeks
Sun Mar 13, 2016 9:45 pm
Forum: STM32 Support
Topic: Chip resetting after every sleep
Replies: 5
Views: 1680

Re: Chip resetting after every sleep

Hi, 1) since I don't know how to enable it, I assume it's disabled :-) Now seriously, the chip works with other projects without Chibios and when I remove all references to chThdSleepMilliseconds() from the code and rise the priority of the blink thread, it keeps running with LED 50% duty cycle. 2) ...
by Ludeks
Sun Mar 13, 2016 3:06 pm
Forum: STM32 Support
Topic: Chip resetting after every sleep
Replies: 5
Views: 1680

Chip resetting after every sleep

Hello everyone, I have a board with the STM32F103C8T6 mcu from ebay, it can be found for $3 as STM32 minimum system board, it's basically a clone of Maple Mini. I have been trying for two days but I can't get it working. It's working fine with the standard peripheral library provided by ST, but when...

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