About Tung Nguyen (晉松)

Tung Nguyen (晉松) · 2024-07-19

Hi guys.I am using the guide below for starting communication between two MCU. Getting started with I2C - stm32mcuThe code is simple, but it did not work.Master code:I checked the SDA and SCL with different transferred data Txdata and Txdata2.But two...

Tung Nguyen (晉松) · 2023-05-29

Hi Everyone. My EV Board use 24 MHz HSE but I used PLL to get with 170 MHz, I also set this frequency for the clock of timer module. I could get 2us periodic signal normal from timer setting however I cannot get 1us periodic signal normally (you can...

Tung Nguyen (晉松) · 2024-07-20

Dear TjaekelThank you for your suggestion. Of course, I have clearly measured the waveforms and also will implement the external pull-up hardware to try.However following the suggestions from TDK, I already made it work with internal pullup resistor ...

Tung Nguyen (晉松) · 2024-07-19

Dear TDK.It is great to receive your very clear explanation.I cannot debug with external pullup resistors immediately now, however, to work with internal pullups, I tried to modify the I2C speed & I2C clock source as some cases below:[1] I2C Clock = ...

Tung Nguyen (晉松) · 2024-07-19

Thank you for your answer. Yeah, you are right, I did not use the external pullup (only use the internal pullup). However, the problem seems to be not only pull-up.[1] The master MCU could transmit the data because I could get the waveform, and each ...

Tung Nguyen (晉松) · 2023-05-30

Thank you for your reply with some nice keywords!

Tung Nguyen (晉松) · 2023-05-30

Yes. Thank you for your reply. Actually, my target is to create 1us ISR for implement a state machine flow-chart with some if-else loop and also GPIO on and off in-side. The toggle GPIO in the waveforms showed above just the checking signals that I g...

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Two STM32 MCU communication by I2C Issue

Problem with 1us clock signal generation from Timer in STM32G474 EV Board

Re: Two STM32 MCU communication by I2C Issue

Re: Two STM32 MCU communication by I2C Issue

Re: Two STM32 MCU communication by I2C Issue

Re: Problem with 1us clock signal generation from Timer in STM32G474 EV Board

Re: Problem with 1us clock signal generation from Timer in STM32G474 EV Board