About Daniel S.

Daniel S. · 2024-07-17

We got the STM32MP157F-EV1 and struggle a bit with the understanding of OTPs. We cloned the STM32PRGFW-UTIL repository [1], put the dip switches into "forced USB boot for flashing" mode (all off) and uploaded the provided image: STM32PRGFW-UTIL\Proje...

Daniel S. · 2020-08-27

We are using a STM32MP157A-DK1 and try to reduce power consumption.1) When A7 and M4 are running we measure around 300mA.2) When A7 is in Suspend-To-Mem and the M4 is still running we measure around 80mA.3) When the M4 also enters standby mode the po...

Daniel S. · 2017-06-22

Posted on June 22, 2017 at 14:51We have two prototype boards each equipped with a LIS331HH.One of the sensors seems completely broken because the Z axis shows values around 2.3g while laying flat on the table. Because of that we were now looking int...

Daniel S. · 2024-07-18

Thanks for the explanation. We understood that bits can not be reset to 0 but thought that setting single bits might also possible in the upper registers.So it was basically just luck that the first reprogramming (going from 0xF0 to 0xF1) worked. It ...

Daniel S. · 2024-07-18

Thanks for pointing the wrong isr signature and the missing enableIRQ out. Was facing the same problem - 5 years later...

Daniel S. · 2020-09-30

That basically makes the whole MCU_BEN feature useless because we always have to boot up the CA7. The resulting power consumption is way to high so we came to the conclusion that this microcontroller is just the wrong tool for the job and we moved on...

Daniel S. · 2020-09-08

I will continue this thread, because nobody answered.What we achieved so far:• Enable the RetentionRam by setting RREN and BREN• Load the program of the M4 into the Retention Ram [1] • The M4 runs for a few seconds and then enters stop mode and can b...

Daniel S. · 2020-09-01

I feel like I should have found that datasheet myself. Thanks for pointing that out.We do turn off VTT now (pin goes low) but we are wondering about VDD_DDR. When we shutdown the A7 (shutdown -h now) and have the M4 still running, we still see VDD_DD...

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OTP went to invalid

Power Consumption with only the M4 running

LIS331HH, understanding self test

Re: OTP went to invalid

Re: WWDG_IRQHandler Doesn't Seem To Be Reached

Re: Power Consumption with only the M4 running

Re: Power Consumption with only the M4 running

Re: Power Consumption with only the M4 running