Tiny Tapeout > Tiny Tapeout Chips > Tiny Tapeout 6 > 427 Lipsi: Probably the Smallest Processor in the World
427 Lipsi: Probably the Smallest Processor in the World
427 : Lipsi: Probably the Smallest Processor in the World
- Author: Martin Schoeberl
- Description: A tiny 8-bit accumulator based microprocssor.
- GitHub repository
- Open in 3D viewer
- Clock: 50000000 Hz
- Feedback: ✅ 1
How it works
This is the Lipsi processor. It executes a hardcoded program counts up at a readable frequency. That number is displayed on the 7-segment display. Additionally, the DP blinks (in hhardware).
How to test
ChiselTest is used for waveform generation. Currently, we use cocotb, this shall change to ChiselTest. But that test is disabled
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | input for Lipsi, also switch of blinking LED | segment a | |
| 1 | input for Lipsi | segment b | |
| 2 | input for Lipsi | segment c | |
| 3 | input for Lipsi | segment d | |
| 4 | input for Lipsi | segment e | |
| 5 | input for Lipsi | segment f | |
| 6 | input for Lipsi | segment g | |
| 7 | input for Lipsi | dp (blinking) |
User feedback
- schoeberl👑: Works as intended.