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https://github.com/wuxx/USB-HS-Bridge

Last synced: 2 months ago
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Host: GitHub
URL: https://github.com/wuxx/USB-HS-Bridge
Owner: wuxx
Created: 2022-07-01T03:17:45.000Z (over 2 years ago)
Default Branch: master
Last Pushed: 2024-07-29T02:28:35.000Z (6 months ago)
Last Synced: 2024-08-03T01:38:06.333Z (6 months ago)
Size: 35.6 MB
Stars: 76
Watchers: 6
Forks: 24
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

        USB-HS-Bridge

-----------

[中文](./README_cn.md)

* [USB-HS-Bridge Introduce](#usb-hs-bridge-introduce) 

* [Work Mode](#work-mode)

* [Features](#Features)

* [How-to-Use](#how-to-use)

* [Product Link](#Product-Link)

* [Reference](#Reference)

# USB-HS-Bridge Introduce

USB-HS-Bridge is a debug tool made by MuseLab based on WCH's CH347T/CH347F With USB 2.0 High Speed, it support USB-to-I2C/SPI/UART/JTAG/GPIO, can be used to operate various devices include MCU/DSP/FPGA/CPLD/EEPROM/SPI-Flash/LCD...

![1](https://github.com/wuxx/USB-HS-Bridge/blob/master/doc/1.jpg)

# CH347T

Since CH347T does not have enough pins, DTR1 and RTS1 need to be used to configure the mode when powering up.

mode| DTR1 | RTS1 | detail | 

----|------|------|--------|

0   |  1   |  1   | UART0 + UART1 |

1   |  1   |  0   | UART1 + I2C + SPI (VCP Mode) |

2   |  0   |  1   | UART1 + I2C + SPI (HID Mode) |

3   |  0   |  0   | UART1 + JTAG  |

# CH347F

The package of CH347F is QFN28, which has enough pins, so there is no need to switch the working mode to reuse the pins. UART0/UART1/I2C/SPI/JTAG can be used at the same time. and the IO level is adjustable by switch, the options are 3.3V/2.5V/1.8V/Vref.

# Features

## USB-to-UART

there are two UART peripherals on board, UART0 and UART1, both are enabled in mode-0, and only UART1 enabled in mode-1/2/3, UART0 support all modem signals and UART1 support some modem signals, both support hardware flow control.

## USB-to-I2C

the I2C(note: I2C Master) is enabled in mode-1/2, the difference between mode-1/2 is that mode-1 need to install the driver provided by WCH, and mode 2 does not require driver installation (act as USB HID Device).

## USB-to-SPI

the SPI(note: SPI Master with 4-line) is enabled in mode-1/2, there are two CS pins, so you can control two SPI devices at once(time-sharing).

## USB-to-JTAG

the JTAG is enabled in mode-3, include TCK/TMS/TDI/TDO/TRST, support fast-mode and bit-bang mode, uhe fastest speed up to 18Mbit/s.

# How to Use

there is a test demo under doc/CH347EVT/EVT/TOOLS/CH347Demo/ to test UART/I2C/SPI/JTAG/GPIO.

for openocd support,  please reference WCH official repo https://github.com/WCHSoftGroup/ch347

# Product Link

[USB-HS-Bridge Board](https://www.aliexpress.com/item/1005004685449797.html?spm=5261.ProductManageOnline.0.0.158c4edffnRuaN)

# Reference

### WCH

https://www.wch.cn/

### Openocd Patch for CH347

https://github.com/WCHSoftGroup/ch347