Recently, I saw a reader ask a similar question, so today I will share some content about STM32 compatibility.
1
Description
I have mentioned the issue of STM32 software and hardware compatibility more than once in my public account. I believe many people are aware of it, but at the same time, many people do not know.
For friends engaged in software or hardware, how to easily replace one MCU with another MCU of the same product series is very important.
For example: if we want to save costs while achieving better performance, we need to replace the STM32F0 with the G0. At this point, we need to consider the compatibility of the MCUs before and after the switch.
Today, I will combine relevant documents and extract some related images to compare the similarities and differences of various STM32 series and their compatibility.
-
Comparison of STM32 product series characteristics -
Peripheral compatibility analysis comparison -
Pin comparison -
Register map
2
Comparison of STM32 Product Series Characteristics
Below is a comparison of the characteristics of STM32F0, F1, F2, F4, and L1 product series:
3
Peripheral Compatibility Analysis Comparison
Friends who have studied STM32, especially those who have developed using registers, should understand that the on-chip peripherals of STM32, when compared, have many similarities across series MCUs, even being identical.
Next, I will compare F1 with F0, F2, F4, L1 to see what differences exist.
1. STM32 F1 vs F0 Series Peripheral Compatibility Analysis Comparison
4
Pin Comparison
For STM32, under the same number of pins and packaging, most models are basically the same, even across series. Of course, there are very few differences, but the vast majority of pin arrangements are the same.
Hardware engineers should understand this pin packaging content better. Below is a comparison of 64-Pin pins from F0 to F4:
5
Register Map
The content of the register map directly relates to programming, so software friends should understand this.
From the above, we generally understand the compatibility of each STM32 series. In fact, from a software perspective, the compatibility is still very good.
Next, let’s compare the USART register maps of STM32F1, F2, and F4:
By comparing this information, I believe everyone can understand the content. If you need to consider porting, please read the relevant documents carefully; there may be slight differences.
END
→ Follow for updates ←