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MColl.3 · 2022-07-05

MColl.3 · 2022-01-03

Is there a library of peripheral drivers for "standard" ports such as Serial, USB, Ethernet, SD card, etc.? For example, I am designing a board with STM32H743 and using a LAN8742A Ethernet Transceiver (RMII interface). Is there firmware code I can do...

MColl.3 · 2021-12-10

I am starting layout with a STM32H745B (208 LQFP) next week for a core part of our new product line. I need a small quantity for prototyping - 10-20 or so.Distributors are showing 52 weeks delivery for this and all H745 parts. Every version of H7 is ...

MColl.3 · 2021-10-28

I am designing a PCB for an ST micro MCU with external SDRAM.On the demo board, ST is using one series resistor termination for the bidirectional data lines. ST places this resistor at about 30/70% split of line length, where the resistor is 30 % of ...

MColl.3 · 2021-02-17

MColl.3 · 2021-11-01

I will use two resistors to terminate each end of the line. Space is not a constraint for this design. Tesla23 at StackExchange simulated termination options and terminating at both end is the best way for signal integrity.Thanks for response.

MColl.3 · 2020-09-21

The NRST line is high (not held in reset). By "idle" I mean the H745 MCU is not running a program (either core).I have tried different USB power supplies, resulting in the same noise observations above. Later this week I will try a bench 5Vdc supply....

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STM32CubeMX - stop mouse spinning blue circle Does anybody know why and how to stop the mouse cursor from showing a spinning blue circle in CubeMX? This is only happening in CubeMX window, like it is constantly doing something.

Are there any standard Peripheral drivers for STM32H7 MCUs?

STM32H7 chip shortage - when are we going to get any version of STM32H745/755 ???

Bidirectional Line Termination - will just one resistor work?

Extending program memory space - best practices Can / should QSPI flash be used to extend program memory space or is there a better method?

Re: Bidirectional Line Termination - will just one resistor work?

Re: Nucleo H745ZI-Q drawing current spikes from USB power port - producing noisy 5V