【AT32F421 Review】+ Introduction and Development Environment Construction

jinglixixi

【AT32F421 Review】+ Introduction and Development Environment Construction [Copy link]

 

 

1. First acquaintance

The long-awaited AT32F421 development board arrived as promised. The transparent outer packaging is still the same as before. The development board is removed as shown in Figure 1.

Figure 1 AT32F421 development board

After finding a USB cable and connecting the development board to the computer, in addition to the power indicator light on the board being lit, the demo's running light effect begins to appear. If the USER key is pressed, the frequency of the running light changes once. The effect is shown in Figure 2.

Figure 2 Demonstration effect

At this point, if you open the computer's resource manager, you can see that a new virtual serial port has been added, as shown in Figure 3.

Figure 3 Virtual serial port

2. Development environment construction

After decompressing AT32F4xx_StdPeriph_Lib_V1.2.9, you can find the AT_START_F421 directory and its subdirectory Examples, where corresponding routines are stored for study and testing.

The development tool I am accustomed to using is MDK, and its version is V5.30.

After installing the following two accessories, you can see AT32F421 in the list of supported chips, as shown in Figure 4.

Figure 4 Adding chip support

To facilitate debugging and downloading of programs, the debugger should be set up as shown in Figure 5. If the development board is powered on at this time, you can see that the debugger is activated, as shown in Figure 6.

Figure 5 Select debugger

Figure 6 Activating the debugger

To download the program, the download algorithm should be selected as shown in Figure 7.

Figure 7 Selecting the download algorithm

3. Development environment testing

Taking the routine LED_Toggle as an example, the result after compilation is shown in Figure 9.

Figure 8 Compilation completed

After downloading the program, you can see the demonstration effect of the running light. Different from the factory demo, the running light effect is not controlled by the USER key to change the flashing frequency.

Figure 9 Download completed

After completing the construction of the development environment, we can design and debug the program according to our needs.

4. Development board peripherals

Since the development board has relatively few peripheral resources, the schematic diagram of its peripherals is shown in Figure 10. We can use these simple peripherals to master the use of the GPIO port.

Figure 10 Peripheral schematic diagram

qwqwqw2088

Looking forward to continue sharing

If this development board does not have many peripheral resources, it can be made smaller, and the PCB space is larger.

jinglixixi

qwqwqw2088 posted on 2021-4-5 21:30 I look forward to continuing to share this development board. If there are not many peripheral resources, it can be smaller, and the PCB space is relatively large

You are right. That is true.

okhxyyo

You can compare it with other boards.

Jacktang

Figure 10 What software is used to draw the peripheral schematic diagram? How to set the color of the library?

jinglixixi

Jacktang posted on 2021-4-6 17:37 Figure 10 What software is used to draw the peripheral schematic diagram? How to set the color of the library?

I really don't know, I haven't drawn a board myself for a long time. I just got a permanent license for a PCB design tool some time ago, but I haven't had time to test it yet.

jinglixixi

okhxyyo posted on 2021-4-6 16:26 You can compare it with other boards.

Okay, let's get ready and see.

Gen_X

Does this not support STM32 CUBE IDE software programming?

zxopenljx

Thanks for sharing

jinglixixi

Gen_X posted on 2021-4-7 09:45 Does this not support STM32 CUBE IDE software programming?

I haven't used it, I guess it won't work.

eew_Violet

qwqwqw2088 posted on 2021-4-5 21:30 I look forward to continuing to share this development board. If there are not many peripheral resources, it can be smaller, and the PCB space is relatively large

This is a small one that is compatible with the Arduino interface.

nmg

Gen_X posted on 2021-4-7 09:45 Does this not support STM32 CUBE IDE software programming?

I asked Yatli official: Not supported

Gen_X

Where can I find an empty project template for AT32F421?

jinglixixi

Gen_X posted on 2021-4-16 20:49 Where can I find an empty project template for AT32F421 for reference?

Can I send you a light-up LED?

freebsder

Thanks for sharing, looking forward to the follow-up!

jinglixixi

freebsder posted on 2021-4-16 23:51 Thank you for sharing, looking forward to the follow-up!

Gen_X

Can I send you the lighting routine?

jinglixixi

Gen_X posted on 2021-4-20 09:14 Can I send you the lighting routine?

Lighting routine

Gen_X

jinglixixi posted on 2021-4-20 12:56 Lighting routine

Thanks for sharing and support!
I was not familiar with Keil and was misled by different versions.