24-channel 100M logic analyzer

V1.0 (It has been verified that the microcontroller is easy to get stuck when supplying external power supply)
V1.1 adds the onboard LED in the original pico development board, changes it to an independent power supply, and adds a V4 daisy link interface. (Not verified)
 
Based on rp2040, the full IO line length
firmware and the host computer have uploaded attachments.
Instead of using isolation chips, dual diodes and resistors are used to adapt to devices with different voltages, which saves costs and allows for two-way communication.
 
The first 21 channels of the pulseview version are logic analyzers, and the last 3 channels are low-speed oscilloscopes.
The original 24 channels of LogicAnalyzer are all oscilloscopes, and the channels can be expanded through daisy chains.
 
Reference project: [Color Silk Screen] RP2040 Logic Analyzer - Jialichuang EDA Open Source Hardware Platform ( oshwhub.com)
LogicAnalyzer original GitHub address: GUSMANB/Logic Analyzer: 24-channel, 100Msps logic analyzer hardware and software (github.com)
pulseview version GitHub address: pico-coder/sigrok-pico: Use a raspberry pi pico (rp2040 ) as a logic analyzer and oscilloscope with sigrok (github.com)
 
V1.0 body
V1.1 body V1.1 adapter board
V1.1 combined