What is the best domestic 32bit arm mcu solution to replace stm32 m3/m4?

oyhprince

What is the best domestic 32bit arm mcu solution to replace stm32 m3/m4? [Copy link]

The price of stm32 microcontroller has risen horribly, and there are scalpers who are disrupting the market.
Now we urgently need domestic 32-bit arm m3 m4 m7 microcontrollers to replace stm32 MCUs; requirements
1. Moderate price and stable supply, especially stable supply. 2. Stable MCU performance, as few bugs as possible, and don't get angry all the time.
3. There should be more development materials and high quality, and after-sales service should be hands-on and nanny-level teaching.
4. What we want most is---> It is best if the program with stm32 can be seamlessly compatible and transferred---> The stm32 program can be shipped directly after being installed. This is what we want most. If this is achieved, we don't need to require point 3.
5. If point 4 cannot meet the requirements, then the workload of transplantation and modification should be as low as possible. If it can run by just changing the clock configuration and the gpio configuration, that would also be great.

xxhhzz

Relatively difficult

oyhprince

xxhhzz posted on 2021-9-26 13:55 It is quite difficult

Lower your requirements and it will be ok if you can meet the 2nd and 3rd points. Which brand is better now?

GigaDevice, HGI, Espressif, SunHang...?

Jacktang

It can be replaced in publicity, but there is not much consensus on stability.

oyhprince

Jacktang posted on 2021-9-26 17:51 They can be replaced in publicity, but there is not much consensus on stability

So if we were to pick the best among the dwarfs, which domestic MCU would be better?

HJD001

The programs of NS32F103VBT6 and STM32F103VBT6 can be seamlessly compatible and transferred ---> the program of stm32 can be directly injected and shipped

江长活

GigaDevice, moderate price, stable supply, stable MCU performance, minimal bugs, and plenty of development materials.

hjl2832

Jiang Changhuo published on 2021-11-16 11:13 GigaDevice, moderate price, stable supply, stable MCU performance, as few bugs as possible, and more development materials.

The price of GD is not great, about the same as ST. You can consider AT32 or APM32, which are much cheaper.

inkinessray

GD cannot directly use ST library, many problems

匠芯创科技

It has to be ARM, RISC-V is not okay?

damiaa

Most of the domestically produced cortexm can replace some of the stm32 m0 m4. GigaDevice seems to have m7. It is no problem to replace it.

But your third requirement is difficult.

The fourth requirement is that some manufacturers advertise this way. You have to try it out.

If you want to use domestic products, it is better to have some basic skills . Otherwise, you will have to handle the troubles yourself later.