About FMass.1

FMass.1 · 2023-09-19

Hi, I need to update the firmware of my MCU from the UART. I mean without physically touching the BOOT pin, but only via serial commands (classic FW update of a product).I'm not an expert, but I tried searching on the internet and I saw that for thes...

FMass.1 · 2023-08-01

Hi, I would like to make a serial to usb converter. The problem is that I need to make a usb-to-32 serial port converter.I've seen that there is nothing like this on the market and not even chips that do this.What I came up with, is to use STM32s to ...

FMass.1 · 2023-06-28

I'm using a STM32H745 MCU, with two processors, one of which is an M7. With the M7 I have problems with the DMA, I have seen that it is a very discussed topic on the internet, where there are many solutions, but I still have some doubts: I would like...

FMass.1 · 2023-06-27

Hi, I have a STM32H745 MCU, which has both M7 core and M4 core. I created a project in CubeIDE, and the code that is automatically generated expects both processors to be active.Indeed, in the code of the main. of core M7, wait for core M4 to boot be...

FMass.1 · 2023-05-23

Hi, I want to implement an I2C slave with a STM32L476 micro that basically behaves like a memory. Therefore it must respond to another micro which executes the HAL_I2C_Mem_Write() and HAL_I2C_Mem_Read() operations to this slave.Searching on the inter...

FMass.1 · 2023-07-03

In this application i don't care if M4 run or not, but maybe, in some case i want to stop it for power saving.

FMass.1 · 2023-05-23

Excuse me, but if I don't know how many bytes the master will send, how can I prepare the buffer?Maybe in the first transfer the master could send 20 bytes, then in the second it could send 2 bytes, in the third 5 bytes and so on; not knowing how man...

FMass.1 · 2023-05-23

Yes ok, I understood that there was something that didn't happen with my code, but on all the examples I find on the internet I see that there is always this problem. The number of bytes that the master sends is always indicated.The only thing I foun...

FMass.1 · 2023-05-23

2 . Regarding the second question: OK. As soon as I'm in the lab I'll do the test, but I think it's the solution I was looking for.For the first one, maybe I explained myself badly, I know how big the buffer is; I declared that buffer in main.c and M...

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Official STM32 Bootloader

Multiple USB virtual com port

DMA access on M7 Device

How to enable only M7 core on dual processor MCU.

Help with i2c slave device

Re: How to enable only M7 core on dual processor MCU.

Re: Help with i2c slave device

Re: Help with i2c slave device

Re: Help with i2c slave device