一个关于stm32单片机的IAP例程，keil-mdk编译，通过uart串口接收上位机软件升级的bootload.-A microcontroller on the stm32 IAP routines, keil-mdk compiled by uart serial port to receive PC software upgrades bootload.

Keil Usb Bootloader. Program in C language for a firmware update on the NXP LPC1769 via usb