Geehy APM32F103 is a "clone" version of the STMicro STM32F103 MCU, and many people have tested it. Many people say that it can be considered a mature replacement because its PCB, code, hex files, testing and production do not need to be changed at all.

2024/07/0203:08:32 digitals 1138

Geehy APM32F103 is a "clone" version of the STMicro STM32F103 MCU. Many people have tested it. Many people say that it can be considered a mature replacement because its PCB, code, hex files, testing and production do not need to be changed at all.

Conventionally, most STM32 microcontrollers have lead times of more than 52 weeks, prices have skyrocketed, but demand still exceeds supply, so many people are now working on STM32 clones and imitations, including the APM32F103. These products all claim to be pin-to-pin and firmware compatible, but these are just theories, and various problems can arise when actually using them. Last year I had a chat about this topic with someone who switched to GD32 microcontrollers and ran into various problems, as follows (translated from French ):

I ordered samples of GD32F103RCT6 (LQFP64) "clone" and tested them A test was conducted and it was really the beginning of a disaster. Out of 6 chips, I only managed to program one. And this one that was successfully burned cannot start normally. I've dug into the firmware and I really can't see what is causing this issue. I also used mBed, a prototyping platform for the ARM processor, which made the whole task even more difficult.

Regarding the series of problems that are occurring now, I think it may be the differences and problems in specific production batches, because when Olimex tried GD32F103RBT6 on their board before, they did not encounter any problems and used it right out of the box.

Geehy APM32F103

For the following exciting content, please click to view: clone version STM32F103 MCU - Geehy APM32F103, which can be used without modifying the PCB - CNX Software Chinese website

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