About JulienD

JulienD · 2024-10-25

Hello, I'm trying communication between stm32G0 as I2C slave and a rapsberry pi 5 as master.on pi side, the call is: self.cpt = (self.cpt + 1) % 255 b = self.bus.read_i2c_block_data(42, self.cpt, 5); I've seen in several places on the web tha...

JulienD · 2024-08-07

Hello STM32G0B1 For some obscure reason, sometimes the systick handler function is not called anymore.I mean, it works for some time then it does not work anymore. It looks like it is more likely to happen when I'm debugging but I have no factual inf...

JulienD · 2024-07-17

Hello, With stm32G0, I can capture a pwm frequency and duty cycle using this configuration:DMA : Now, for pinout reasons, I want to do the same thing using channels 3 and 4 instead of channels 1 and 2 but I can't find a correct set of settings.On pa...

JulienD · 2024-05-23

Hello, Can I say that "IDLE" is equivalent to "RTO with 8-10 bits (depending on framing)"?Or are there some other subtle differences? My goal is to transfer received data with DMA and start interpretation of the data when nothing is received on the l...

JulienD · 2024-01-15

Hello, I try to add MSC feature to my app. MCU is L452.To avoid side effects, I started a brand new app with cubeIDE/Mx.I activated USB_DEVICE feature.I declared the USB_DEVICE as mass storage class.I had a look to the MSC_standalone example from G0 ...

JulienD · 2024-09-06

Today is a good day, I learned something: VECTACTIVE register. Thanks.But if the microcontroler is in an interrupt state, how one can explain that if I stop the app, the call stask does not show that the code currently in execution is an interrupt? (...

JulienD · 2024-08-28

1- Not that much happens in systick_handler in fact, calls are more or less setting a boolean and sometime a 10µs call...2- Yes :

JulienD · 2024-08-28

It finally happened!

JulienD · 2024-08-08

Ok, Thanks. It took some time to reproduce.As you can see on this new screenshot : - There's a breakpoint in the systick interrupt. after some time, the system never stop on it (and the related code is not called, so it's not a breakpoint issue).- I ...

JulienD · 2024-05-27

Thanks for your answer, it's exactly what my experiments lead me to understand.Delay is the only difference between RTO and IDLE.

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I2C slave NOSTRETCH=1, When should I put data in TX register?

Systick interrupt handler stopped being called

Capturing PWM with DMA in indirect mode on Channel 3 and 4

Uart : what is the difference between IDLE and RTO interrupts

USB device as MSC starting from cubeMx

Re: Systick interrupt handler stopped being called

Re: Systick interrupt handler stopped being called

Re: Systick interrupt handler stopped being called

Re: Systick interrupt handler stopped being called

Re: Uart : what is the difference between IDLE and RTO interrupts