【National Technology】K_Link#The 7th Lichuang Electric Competition#

Master chip

N32G430C8L7

The N32G430 series of microcontroller products adopts a high-performance 32-bit ARM Cortex™-M4F core, integrates a floating-point unit (FPU) and digital
signal processing (DSP), and supports parallel computing instructions. The maximum operating frequency is 128MHz, it integrates up to 64KB of on-chip encrypted storage Flash, and supports multi-
user partition permission management, with a maximum of 16KB of embedded SRAM. It has a built-in internal high-speed AHB bus, two low-speed peripheral clock buses APB
and bus matrix, supports up to 40 reusable I/Os, and provides rich high-performance analog interfaces, including a 12-bit 4.7Msps ADC, supporting up to
16 2 external input channels and 3 internal channels, while providing a variety of digital communication interfaces, including 4 U(S)ART, 2 I2C, 2 SPI/I2S, and
1 CAN 2.0B communication interface.

Precautions for use

1. Does not support fast charging 

2. The serial port part is only for use by the host computer if there is one in the future. You don’t need to solder it if you don’t need it. 

3. You can use stlink+keil for burning

4. Do not solder the wrong pins when soldering the chip. ( Attached is the pin diagram given by a group friend)

About the shell

1. The shell will open source the step and stl files, and the stl file will be directly placed in the attachment. If you need the step file, you can privately message me, either on oshwhub or QQ.

2. Regarding printing, try Amway Lichuang’s 3D Monkey, and you can get two pieces for free a month ( of course I can’t do this, due to design reasons, sry, if you print it with the free one, you can get free shipping)

3. It is recommended that the board thickness is 1.6 , but the protruding part of the USB port needs to be cut (1.2 board thickness has not been tested)

4. Interference fit, and use m.2*3 screws to fix it again

About hardware

1. Female header (rx tx swclk swdio 3.3v 5v gnd has been led out as an online burner)

2.ws2812 horizontal sticker (the groove on the shell is a light-transmitting design)

3. The single-channel voltage detector (logic analyzer) is led out with a header, and the pin is defined as ch1 

4. Dial switch has three directions, left for the previous page, right for the next page, press to confirm

Attached is the original post address

[Training Camp Official Case] ​​USB Ammeter- Jialichuang EDA Open Source Hardware Platform (oshwhub.com)

Lead pin definition

renderings