About michiel.tjampens

michiel.tjampens · 2023-12-30

Got this error in boot log.[ 4.036653] stm32f7-i2c 5c009000.i2c: error -ENOENT: Failed to get controller clock [ 4.054809] stm32f7-i2c: probe of 5c009000.i2c failed with error -25c009000 refers to i2c6. Below is the relevant section in the opte...

michiel.tjampens · 2023-11-26

I'm working on a board with a STM32L010K.For some reason, I can't get the I2C code to work properly. I mean it works (data gets read from the slave) but not if a lot of things are done in succession, then a hard fault is thrown.Below is the block rea...

michiel.tjampens · 2023-10-13

I'm still trying to get a fully error free bootup on the stm32mp151 based board. I'm using ST git's for the bootstages and kernel/rootfs are build using the ST yocto layers.But because i'm unsure which are actually errors and which are just warnings ...

michiel.tjampens · 2023-09-17

Still trying to get a custom board with a STM32MP151AAC and 512MB ram to boot from eMMC. Switched to using this guide.After various new issues (one of them being this), I managed to bitbake a set that I'm able to fully program with CubeProgrammer.How...

michiel.tjampens · 2023-09-03

I'm trying to get to know stm32mp1 while making a board for this thing.While using the default image provided by manufacturer seems to work. The kernel used is old compared to the current ST BSP and support from them isn't exactly great so I'm trying...

michiel.tjampens · 2024-08-07

I tried doing that in the beginning (start from 157) but if I remember correctly there are significant differences...I zipped all the dts's I made: https://we.tl/t-IoIeFy4mdE Those are also for the 151a, was using a SoM made by Myir that uses a PMIC....

michiel.tjampens · 2024-08-07

I've given up on getting the stm32mp1 working properly, to many unsolved/undocumented issues and in the end it wasn''t fast enough to my liking.Regarding optee debug. According to the script i made to build optee, this needs to be the make in the mak...

michiel.tjampens · 2024-01-02

Hello @Erwan SZYMANSKI That did the trick.But any idea why i2c4 and i2c6 need to be mentioned in the scmi but i2c5 doesn't?Also i2cdetect takes atleast a second per address... but does in the end find the rtc on the correct address.Pull-ups are prese...

michiel.tjampens · 2023-11-29

Attached source and header that purely checks received byte count (renamed rec to 'toReceive')Added check to make sure it doesn't go beyond expected bounds.That decrement was missing because I was testing the code without rec.The codes works and is s...

michiel.tjampens · 2023-11-26

Want to keep things 'simple' and work bare metal. Thought that would be better to learn the hardware without an abstraction layer inbetween.

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Failed to get controller clock i2c

STM320L0 I2C timing issue?

Various issues when starting kernel on custom stm32mp151aac board

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STM32MP151aac custom board kernel not starting

Re: Various issues when starting kernel on custom stm32mp151aac board

Re: Various issues when starting kernel on custom stm32mp151aac board

Re: Failed to get controller clock i2c

Re: STM320L0 I2C timing issue?

Re: STM320L0 I2C timing issue?