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Problem with using external crystal oscillator

Hi Everyone,We are using the following code to generate clock pulse for STM32F722 from an external 12MHz crystal. However, whatever we do it sounds the STM32F722 gets its clock pulse from an internal 16 MHz oscillator. The reason for using an extern...

DHes by Associate II
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  • 7 replies
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How to store a text file in Nucleo?

I am using a Nucleo F429ZI. I have noticed when I plug it in via the debugger, my computer treats it like an external drive (which it calls NODE), where it seems I can store stuff. Is it possible to store a text file in this space generated from my p...

JChan.0 by Associate II
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  • 1 replies
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Trouble triggering TIM2 capture compare from TRC

Hi there, I'm using the STM32H7 and I need to get one of the SAI FS signals to go through a pre-scaler and trigger a capture compare on TIM2 CC3.The only solution for this seems to be to use SAI2_FS_A -> TIM5_ETR1 -> TIM5_TRGO -> TIM8_ITR3 -> TIM8_TR...

Mttjcksn by Associate III
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  • 5 replies
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SmBus Comm Problem

We need to Smbus Communication to use BQ78350(Texas Instrument) with STM32F051R8T6. We studied the example codes in your website. (https://www.st.com/en/embedded-software/x-cube-smbus.html) But the examples are so complicated to understand. We need t...

SIM900A GSM module with stm32f1

I'm trying to send message to sim900A via the serial port. The AT commands work but the GSM replies with some unwanted text (Previously sent text ) then finally OK. The GSM is supposed to reply what I typed with some prompts and finally OK. The pict...

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ASeyo by Associate II
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  • 0 replies
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What are the correct values for embedded flash wait state setting and programming delays for VOS0 range and AXI clock 240MHz?

Hi,I'm using a STM32H745 and looking at RM0399 rev 2. In table 15 for the flash memory timings there are no values for VOS0 range and the maximum frequency in the table is 225MHz. Going by other sections of the document the maximum Faclk is 240MHz.I ...

mickminn by Associate III
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  • 0 replies
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How to start on 32-bit chips?

Hi, there: I have been a professional embedded programmer - mostly 8051 and 8-bit PICs. Things have not been going well professionally and personally there so I am looking to expand into the growing market of 32-bit chips. However, I found those chip...