Create MDK project

establish MDK Document engineering

1. Select project , stay GPIO Light up the directory to create OBJ、USER、SYSTEM、CORE、FWLIB、HEADER、GPIO;

I'm not going to show you one by one
Related resources ： Sample code

How to choose your own chip type

Here we use stm32f103c8t6 For example , The same is true for replacing other chips that will do ！

Introduction to startup file

These three documents are ：startup_stm32f10x_ld.s Suitable for small capacity products 、startup_stm32f10x_md.s Suitable for medium Capacity products 、startup_stm32f10x_hd.s Suitable for large capacity products ;

The capacity here refers to FLASH Size . The judgment method is as follows ：

1. Small capacity ：FLASH≤32K
2. In the capacity ：64K≤FLASH≤128K
3. The large capacity ：256K≤FLASH

Our development board uses STM32F103C8T6,FLASH Capacity of 64KB, It belongs to medium capacity products , So we choose startup_stm32f10x_md.s As our startup file .

Add startup file

Copy startup_stm32f10x_md.s Put the file in the project directory CORE Next ：