Step of product switching to domestic chips, stm32f4 switching to gd32

Recently, the price of chips has increased a bit , The supply cycle is also relatively long , Especially for large quantities of products, we will consider replacing domestic chips , Solve the pain points of the supply chain ;

STM32F4 The chip can directly hardware Pin to Pin Replace GD32F450; It can be said that China is becoming stronger , Many benefits ;

Here's a list of GD32F450 resources , And what changes need to be made to the software after replacement ;

One 、 Resource profile

ARM Cortex-M4 RISC 32-bit 200MHz Main frequency

Two 、 Bus block diagram , You can visually see which bus peripherals are attached to ;

3、 ... and 、 Clock tree , This is very important ; Each peripheral has an independent clock that needs to be enabled , To work properly ;

Four 、 Software modification part , The difference is mainly reflected in the engineering matching 、 Switch the system clock 、SPI modular 、ADC modular 、USART modular 、ENET modular 、USBFS Above the module ;

The development package can be downloaded through the link provided in the document ;

5、 ... and 、 Data download

GD32F450xx Of DataSheet and 《 from STM32F4xx Migration to GD32F4xx Migration instructions for 》 WeChat official account , reply “GD32F450”, Free access .