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STD CH55xG Development Board

License: CC-BY-SA 3.0

Mode: Editors' pick

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Update time: 2022-12-19 21:04:36
Creation time: 2022-11-26 09:33:51
Description
# CH55xG Development Board Development board for the CH551G, CH552G and CH554G microcontrollers with native USB 2.0 and Arduino IDE support. ![CH55xG_DevBoard_pic1.jpg](https://raw.githubusercontent.com/wagiminator/Development-Boards/main/CH55xG_DevBoard/documentation/CH55xG_DevBoard_pic1.jpg) # Pinout ![CH55xG_DevBoard_pinout.png](https://raw.githubusercontent.com/wagiminator/Development-Boards/main/CH55xG_DevBoard/documentation/CH55xG_DevBoard_pinout.png) # The CH55xG Family of 8-bit USB Microcontrollers ## Overview The CH55x is an 8-bit enhanced E8051 core MCU compatible with the MCS51 instruction set. 79% of its instructions are single-byte single-cycle instructions, and the average instruction speed is 8 - 15 times faster than that of the standard MCS51. The special xRAM supports direct memory access (DMA), data fast copy command, and double DPTR pointers. The CH55x has a built-in USB controller and USB transceiver, it supports USB-Host mode (CH554 only) and USB-Device mode (all), USB Type-C master-slave detection, USB 2.0 full-speed (12Mbps) and low-speed (1.5Mbps) traffic, data packets of up to 64 bytes, and DMA. It has a factory built-in bootloader so firmware can be uploaded directly via USB without the need for an additional programming device. ## Block Diagram ![CH55xG_DevBoard_block.jpg](https://raw.githubusercontent.com/wagiminator/Development-Boards/main/CH55xG_DevBoard/documentation/CH55xG_DevBoard_block.jpg) ## Features | Specifications | CH551G | CH552G | CH554G | | :------------- | :----- | :----- | :----- | | Program ROM | 10 KB | 14 KB | 14 KB | | Bootloader | 2 KB | 2 KB | 2 KB | | Data Flash | 128 bytes | 128 bytes | 128 bytes | | iRAM | 256 bytes | 256 bytes | 256 bytes | | xRAM | 512 bytes | 1024 bytes | 1024 bytes | | GPIO Pins | 12 (10 usable) | 12 (10 usable) | 12 (10 usable) | | ADC Channels | 0 | 4x 8-bit | 4x 8-bit | | PWM Channels | 2x 8-bit | 2x 8-bit | 2x 8-bit | | Timer/Counter | 3 | 3 | 3 | | Touch Key Channels | 4 | 5 | 5 | | USB Modes | Device | Device | Host/Device | | USB Type-C | no | yes | yes | | Interfaces | 1x UART, SPI | 2x UART, SPI | 2x UART, SPI | | Internal Clock | 24/16/12/6/3/0.75 MHz | 24/16/12/6/3/0.75 MHz | 24/16/12/6/3/0.75 MHz | # Built-in USB Bootloader ## Installing Drivers for the Bootloader ### Linux You do not need to install a driver. However, by default Linux will not expose enough permission to upload your code with the USB bootloader. In order to fix this, open a terminal and run the following commands: ``` echo 'SUBSYSTEM=="usb", ATTR{idVendor}=="4348", ATTR{idProduct}=="55e0", MODE="666"' | sudo tee /etc/udev/rules.d/99-ch55x.rules sudo service udev restart ``` ### Windows On Windows you will need the Zadig tool (https://zadig.akeo.ie/) to install the correct driver. Click "Options" and "List All Devices" to select the USB module, then install the libusb-win32 driver. ## Entering Bootloader Mode A brand new chip starts automatically in bootloader mode as soon as it is connected to the PC via USB. Once firmware has been uploaded, the bootloader must be started manually for new uploads. To do this, the board must first be disconnected from the USB port and all voltage sources. Now press the BOOT button and keep it pressed while reconnecting the board to the USB port of your PC. The chip now starts again in bootloader mode, the BOOT button can be released and new firmware can be uploaded. # Installing Toolchain for CH55x If you do not want to use the Arduino IDE, you can install the [CH55x Software Development Kit for the SDCC compiler](https://github.com/Blinkinlabs/ch554_sdcc). Follow the instructions on the website. In order for some programming tools to work, Python3 must be installed on your system. Most Linux distributions already include this. Windows users can follow these [instructions](https://www.pythontutorial.net/getting-started/install-python/). In addition pyusb must be installed. On Linux this can be done by running the following commands: ``` sudo apt install python3-pip sudo pip install pyusb ``` # Preparing Arduino IDE * [Install ch55xduino](https://github.com/DeqingSun/ch55xduino). * Open the Arduino IDE. * Go to "Tools" -> "Board" -> "CH55x Boards" and select your chip. * Go to "Tools" and set the desired board options. * Go to "File" -> "Examples" -> "Examples for CH55x Board" and select a Sketch of your choice. * If your board is never used with ch55xduino before, you need to make the ch55x chip enter the bootloader mode. Hold the BOOT button pressed while connecting the board to the USB port of your PC. You do not need to do this if you have installed a blank new chip on the board. * Now you can upload your sketch. # References, Links and Notes * [CH55x SDK for SDCC](https://github.com/Blinkinlabs/ch554_sdcc) * [ch55xduino](https://github.com/DeqingSun/ch55xduino) * [CH551/552 Datasheet](http://www.wch-ic.com/downloads/CH552DS1_PDF.html) * [CH554 Datasheet](http://www.wch-ic.com/downloads/CH554DS1_PDF.html) ![CH55xG_DevBoard_pic3.jpg](https://raw.githubusercontent.com/wagiminator/Development-Boards/main/CH55xG_DevBoard/documentation/CH55xG_DevBoard_pic3.jpg) ![CH55xG_DevBoard_pic2.jpg](https://raw.githubusercontent.com/wagiminator/Development-Boards/main/CH55xG_DevBoard/documentation/CH55xG_DevBoard_pic2.jpg) # License ![license.png](https://i.creativecommons.org/l/by-sa/3.0/88x31.png) This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License. (http://creativecommons.org/licenses/by-sa/3.0/)
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ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 100n C1,C3 C_0603 2 LCSC YAGEO CC0603KRX7R9BB104 C14663
2 10u C2 C_0603 1 LCSC SAMSUNG CL10A106MA8NRNC C96446
3 Header H1,H2 210S-8X1/2.54 2 LCSC Ckmtw 210S-1*8P L=11.6MMGold-plated black C124381
4 PWR LED1 LED_0603_O 1 LCSC EVERLIGHT 19-217/GHC-YR1S2/3T C72043
5 P33 LED2 LED_0603_O 1 LCSC KENTO KT-0603R C2286
6 1k R1,R2 0603 2 LCSC UniOhm 0603WAF1001T5E C21190
7 10k R3 0603 1 LCSC UniOhm 0603WAF1002T5E C25804
8 BOOT SW1 SW-SMD_L4.0-W2.9-LS5.0 1 LCSC XKB Enterprise TS-1185-C-A-B-B C465999
9 RESET SW2 SW-SMD_L4.0-W2.9-LS5.0 1 LCSC XKB Enterprise TS-1185-C-A-B-B C465999
10 CH55xG U1 SOP-16_150MIL 1 LCSC WCH(南京沁恒) CH552G C111292
11 Micro Input USB1 MINI-USB-SMD_U254-051T-4BH23-S2B 1 LCSC XKB Enterprise U254-051T-4BH23-S2B C319164

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