ChibiOS Free Embedded RTOS

Hi,

ChibiOS_21.11.5 running on a H743 chip.

I've enabled SPI6, using the BDMA peripheral. From the RM Sec 2.1 Figure 1, you can see the BDMA can only access SRAM4. This means that when you try to use spiSend() (and I suppose spiReceive()) you get a segfault as it points the BDMA at spip->rxsink ...

I know I asked recently about EFL on STM32L0 (and I still plan to contribute that when my project gets going).

Now, a different project means looking at the (quite) different H7 flash. My brief looking at the H742/3/53 group that my chip is within, yields:

These devices are all dual bank.
There ...

Hi, just doing some investigating/costing for a contract I'm working on. There's a good chance the project will fall into the free-commercial area (or even GPL potentially), but I wanted to have all the information:


The prices here are from 2020, are they still accurate?
The free commercial ...

To follow up, I finally found some cycles to try this out.

Initially, I tried to follow some basic tutorials (all of course geared towards using the Cube tools + usual software stack). After a bunch of blind alleys, I finally just went for broke and tried to do it in Chibi which was way easier.

If ...

Thanks, will do next session. I was using CubeMX to verify the clock tree as I set it up, but who knows... all software can have bugs (or more likely, I didn't transpose it to mcuconfig.h exactly).

I'll post back when I have more info.

Well I made some progress.

I tried another I2Cx (from the same 1,2,3) and it still didn't work. Then I tried switching the I2C123 clock mux to use CSI_KER_CK (4 MHz instead of my PLL3_R_CK which is 8MHz) and now it successfully completes the i2cMasterTransmitTimeout() call.

Switching back to PLL3 ...

Hi all,

Still tinkering with this H743 board. I am running ChibiOS_21.21.4 and attempting to use the I2C3 peripheral. I am running into a weird one, where as soon as I attempt to initiate a transfer, I lose contact with my openocd/stlink and can only recover by power cycling. It seems to be ...

Hi,

I just noticed that someone along the way made a FLASH driver, but it's ported only for certain devices. Is there any technical reason that the smaller (128 byte sector) devices are not implemented, or just manpower/hardware?

If it's just waiting for an implementation, I can try to get the L0 ...

Hi all,

Just wondering if anyone has ever played around with this project (specifically integrating with ChibiOS)?

https://mongoose.ws/

I'm definitely not a web guy, so thought it might be interesting to do simple things with. Any other suggestions that I could look at?

There you are.