Stm32f4 serial port burning [flymcu]

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Preface

Not used for a period of time stm32, The serial burning method is a little forgotten , In order to get started faster in the future , So it's recorded here .

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One 、 Selection of serial burning software

At present, there are mainly three kinds of burning software that can be found ,flymcu,mcuisp,Flash Loader Demonstrator.
After practical use, it is found that mcuisp The chip protection cannot be read ,Flash Loader Demonstrator The operation is complex and needs to be reset frequently , therefore The final choice is flymcu.

Two 、 Use steps

1. Hardware and software preparation

Before burning , Download and install the software flymcu Software , Serial driver （ You can easily find ）; In hardware, you need a usb To serial port as well as stm32 It's a test board .（ The following is the connection sequence ）
usb To serial port ------------------------------stm32
tx------------------------------------------rx
rx------------------------------------------tx
vcc------------------------------------------vcc
gnd------------------------------------------gnd
stm32 Upper boot0 Pin connection vcc,boot1 Pin connection gnd Enter burn mode
boot0 Pin connection gnd,boot1 Pin connection gnd In normal startup mode

2. burn

The software diagram during burning is shown in the following figure

1. First, search the serial port currently used usb ch340, If you can't search , Re plug usb Then try again , If you still can't find , Check whether the drive is installed .
2. Then set it below （ The position of the red circle in the lower left corner of the figure ） Set the entry bootloader The way It can burn with one key .
3. Finally, wait for the burning to complete , The burning result will be displayed on the right .
4. modify stm32 Of boot0 The pin is low , Press the reset key , Check whether the program meets the requirements

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summary

After setting, it can make serial burning easier , When burning, you can also set the option byte to set whether the program after burning can be read out on the chip , The above are the results of practice , If there is a mistake , Please correct .