It is recommended to use this debugger: STLink V2.1/DAPLink
STM32G030 series with DC-DC power supply is no longer overpriced and is a qualified substitute for STM32F030. It has a higher main frequency and several more IOs.
I accidentally discovered that the STM32G030 has two IOs that can be used as both SPI and I2C, so I decided to make an interface to facilitate debugging of various modules, and this is the core board.
All pins of this core board lead to two pads, which allows for more flexible wiring. Of course, you can also solder only one row of pins and use the other row as test points.
The core board has a power indicator light, a custom function indicator light, a reset button, and I2C pull-up resistor. Indicators connected to GPIO as well as I2C pull-up resistors can be enabled or disabled using jumper caps.
The core board leaves PA0~PA7 floating (PA2 and PA3 can also be used as serial ports for outputting debugging information) to facilitate debugging of parallel interface peripherals.
Both CC1 and CC2 of the core board are connected to 5.1k pull-down resistors to ensure that the PD protocol adapter can also be powered normally.
BOM download
PCB_PCB_STM32G030F6P6 core board_2022-09-24.pdf
PCB_PCB_STM32G030F6P6 core board_2022-09-24.json
PCB_STM32G030F6P6 core board_2022-09-24.pcbdoc
Gerber_PCB_STM32G030F6P6 core board.zip
Schematic_STM32G030F6P6 core board_2022-09-24.pdf
SCH_STM32G030F6P6 core board_2022-09-24.json
Sheet_1_2022-09-24.schdoc
61506
Vllink Lite Pocket Edition
Introduction: A simplified version of Vllink Lite, retaining SWD and UART functions and reducing the PCB area. Using GD32F350G8U6 solution
First of all, thanks to Vllogic for the open source Vlllink Lite firmware.
The author's open source address is https://gitee.com/vllogic/vllink_lite
or https://github.com/vllogic/vllink_lite.
This design is a simplified version of Vllink Lite. In order to reduce the size, only the SWD and UART functions are retained.
Vlllink is transplanted using DAPLink source code and retains the functions of DAPLink. But it is implemented using a smaller package and lower price MCU. This design uses GD32F350G8U6, which is only 4x4mm in size, and does not require an external crystal oscillator.
This design uses the more common USB-C interface, making it easier to find a suitable data cable.
For specific usage methods, please refer to the original author's Github, which has detailed introduction and usage methods.
BOM download
PCB_PCB_Vllink_Lite_GD32F350G8_2022-09-24.pdf
PCB_PCB_Vllink_Lite_GD32F350G8_2022-09-24.json
PCB_Vllink_Lite_GD32F350G8_2022-09-24.pcbdoc
Gerber_PCB_Vllink_Lite_GD32F350G8_2022-09-24.zip
Schematic_Vllink Lite Pocket Edition_2022-09-24.pdf
SCH_Vllink Lite Pocket Edition_2022-09-24.json
Sheet_1_2022-09-24.schdoc
61507
ES2Eds3 ESP32S3 WiFi Development Board
Introduction: Based on ESP32S3 WiFi development board, onboard OTG and UART, automatic download, DCDC, ESP32 S3
# ES2Eds3 ESP32S3
ES2Eds3 ESP32S3 WiFi development board
## Function
* Automatic download
* OTG
* BOOT/EN button
* Onboard UART chip
* No LED
* It should not be plugged into the breadboard
##### v1.0 only changed Silk screen and ESD will not be verified
##### v0.9 verification completed
! [QQ screenshot 20211230154408.jpg]
![QQ screenshot 20211230154603.jpg]
###### The automatically downloaded transistor is used up
! [QQ screenshot Screenshot 20211230154615.jpg]
- - -
BOM download
PCB_PCB_ESP32S3FN8_2022-09-24.pdf
PCB_PCB_ESP32S3FN8_2022-09-24.json
PCB_ESP32S3FN8_2022-09-24.pcbdoc
Gerber_PCB_ESP32S3FN8.zip
Schematic_ES2Eds3 ESP32S3 WiFi Development Board_2022-09-24.pdf
SCH_ES2Eds3 ESP32S3 WiFi Development Board_2022-09-24.json
Sheet_1_2022-09-24.schdoc
61508
electronic
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