Is stm32 and 51 programming the same?

51 MCU core, using 8bit, CISC architecture, from INTEL.

STM32 core, using 32bit, RISC architecture, from ARM.

Compared with 51 single-chip microcomputer, stm32 has high code efficiency (32 bits contain large amount of information, most instructions are fixed by one byte), fast execution speed (72MHz system clock is not covered), powerful (peripheral rich, multi-pin, tube) The foot function can be remapped), and there are many advantages.

The difference between programming:

　　 Stm32 basically does not need to be assembled, the amount of engineering is huge, there are too many registers, and there are many bits. And 51 single-chip multi-use assembly.

The difference between C language programming is not big, and stm32 is in place in domestic technical support, and the information is rich (the key is not only E text, but also Chinese language translation), as well as complete library function support, from 51 to the past is not too Great difficulty. There are 51 similar circuit programs, transplanted a lot of things do not need to be changed, but for the modification of registers, IO ports, interrupts, etc., the software flow, control logic basically do not need to be changed.

There are mainly the following differences:

1. Library function: ST manufacturers have given a wealth of function libraries, directly using the library functions, basically can get everything, saving time and effort.

2. Speed: STM32 clocked at 72MHZ, flying at a normal speed. Basically, you don't have to worry about processing power. No matter how awkward your algorithm is, STM32 will do it for you in an instant.

3. Pins: 51 address latches required for programming, 3-8 decoders, no longer needed on STM32, STM32 has sufficient IO interface.

4. Peripherals: STM32 has 3 serial ports, 2 SPIs, 3 CANs, 2 USBs, and n TImers. The 51 MCU basically has no peripherals.

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