Logic analyzer via GPIO pins

#1

Hello
Are there any plans on creating software/firmware to use GPIO pins with some kind of logic analyzer (such as sigrok)? Or would it be possible to create such software with plugin system (does it support setting custom USB descriptors/endpoints/clock frequences/stm32 timers)?
I know about SPI/UART/I2C to USB converter feature but it would be really cool to analyze any protocol via existing software and decoders.

6 Likes
#2

I would also love this not that I know how to implement it

#3

Я думаю карманный логический анализатор протоколов это будет одна из самых востребованных функций.Сделать плату расширения для преобразвания логических уровней на оптронах проблемы не составляет. Когда придёт мой прибор начну прорабатывать идею. Было бы круто имитировать slave устройства например в сети с протоколом modbus.

1 Like
#4

I would start with implementing a “simple” GPIO oscilloscope on Flipper, with data logging. This functionality could be really useful for dealing with unknown protocols/modulations on IR and sub-GHz as well.