stm32 download method serial port ISP\swd (JLink)

1. First look at the stm32 startup mode 

The boot mode of stm32 is determined by the boot0 and boot1 pins of the 32 chip. It is divided into embedded flash boot mode (normal boot mode), memory boot mode, and rom boot mode.

The corresponding relationship between the boot mode and the pin high and low levels is as follows. Within the four clock cycles of chip reset, the levels of boot0 and boot1 pins will be read to determine the operation of the chip.

model.

boot0=0, boot1=x ---------------- Embedded flash boot mode

boot0=1, boot1=1 ----------------Memory boot mode

boot0=1, boot1=0----------------rom boot mode (serial port isp download program)

2.Serial port isp download method

 ISP serial port download HEX program steps

1) Set boot0=1, boot1=0 

2) Use mcuisp or flashloader to download the program to the embedded flash

3) Set boot0=0, boot1=0 to run the program

3. jtag-swd download method

     The pins JTMS, JTCK, VCC, and GND are used to download and debug the program. The specific settings need to be studied.

     This is the pin and the wiring of the JLink is as follows

        JTMS--TMS/SWDIO

        JTCK--TCK/SWCLK

        VCC GND provides power for the entire board

------------------------------------------Gorgeous dividing line------------------------------

Three programming download methods for STM32

J-link can debug almost all arm chips, it is a good thing. Here are three ways to download programs for stm32:

1. J-Flash download (requires J-link)

2. MDK configuration download (requires J-link)

3. ISP download (serial port download, you need to use the officialhttp://www.segger.com/cms/jlink.html .

Open the run, first configure the cpu corresponding to the cpu of the development board,

Connect the development board and J-link to the computer, and then connect

The connection is successful as shown in the following figure:

Then select the hex file you want to download, open it with the shortcut key ctrl+O (or file/open), and select the file.

Then select Target/Auto to burn automatically. (Sometimes it is strange that it cannot be successful in one try. In this case, you need to burn again manually, Target/Erase chip-->Target/Erase sectors-->Target/Program && verify).

OK, the burning is successful.

----------------------------------------------------------------------------------------------

2. MDK configuration download, that is, online debugging and downloading in MDK. First, make sure that the j-link driver has been successfully installed. The rest of the work is just to set up MDK.

In fact, you can also choose J-LINK/J-TRACE.

Click setting to start setting.

Click add and select cpu.

OK, you can debug and download online:

----------------------------------------------------------------------------------------------

3.ISP download (serial port download)

(1) Download the software Flash_Loader_Demonstrator_V1.3_Setup.exe and click Next to install it. Note: The version is 1.3. I tried version 2.1 and it failed to connect successfully.

According to the prompts: Set the boot mode, set BOOT0=1, BOOT1=0, and then restart the system. Connect. No more words below, just look at the picture.

(2) Download using STMISP.EXE, which is an ISP application for STM32

 STMISP.rar   

Then without saying anything else, just post the pictures.