The DigiView logic analyzer and analysis software are made by TechTools and support analyzing I2C, SPI, and UART protocols.
Usage Tips
You may need to enable the noise filter to usefully decode signals on a breadboard.
VM usage
The DigiView software currently has significant broken support in virtual machines.
- A bug in VirtualBox prevents it from working entirely.
- Some users have reported it working in VMware Fusion
- mhazinsk was unable to get it to work with VMware Player; upon attempting to capture data, the program hung indefinitely
Note that it is necessary for the VM to have full USB 2.0 speed as the device requires a high clock rate to sample data.