STM32 serial port download method-USART BootLoader-EEWORLD

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When playing with STM32, J-LINK emulator is good, but J-Link is expensive. Fortunately, STM32 has its own bootloader, which can download programs through the serial port. I think the serial port download method is simple and cheap, and it can be done with a USB-TTL converter.

1. First, on the minimum system board that can work properly, adjust the 232 circuit on the development board to ensure that it is available, that is, it can communicate with the PC without obstacles. Then load and download the compiled HEX file. Here STM32 recognizes hex files, which is better than the ARM of the LM3S series. First, download the host computer software Flash_Loader_Demonstrator_V2.1.0_Setup serial port download from the Internet, or go to the ST official website to download it.

2. Install the software and carry out relevant design

Confirm that your serial port settings are OK and make sure the serial port numbers correspond.

3. Connect to download

Click Next. Note that when you click Next, a dialog box may pop up:

Check the two Boot pins, which should be Boot0=1; Boot1=0 (grounded). The setting is complete, and you can power on the MCU again.

Continue toNext.

Connection OK, Next.

This step will automatically select the device, then NEXT.

Select your HEX file in Download from file, Next.

Download process completed.

Keywords：STM32 Reference address：STM32 serial port download method-USART BootLoader

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