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https://github.com/unixb0y/pico-delaygen
Raspberry Pi Pico based delay generator for Fault Injection
https://github.com/unixb0y/pico-delaygen
Last synced: about 1 month ago
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Raspberry Pi Pico based delay generator for Fault Injection
- Host: GitHub
- URL: https://github.com/unixb0y/pico-delaygen
- Owner: unixb0y
- Created: 2024-06-05T15:50:01.000Z (7 months ago)
- Default Branch: master
- Last Pushed: 2024-07-08T15:26:49.000Z (6 months ago)
- Last Synced: 2024-07-09T19:46:57.558Z (6 months ago)
- Language: C
- Size: 4.88 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# pico-delaygen
Delay generator will appear as a new serial device under `/dev/tty.usb*` with default baud rate of 115200.
As of now, only the commands marked with a tick symbol below, are supported.
Recommended way of operation:
1. Set up serial connection
2. Soft reset (optional)
3. Set pulse width in clock cycles (default: 8ns each)
4. Set delay in clock cycles (default: 8ns each)
5. Arm the device using "glitch" command
6. Wait for state to return to 0 (idle)
## Compilation
```zsh
PICO_SDK_PATH=/path/to/pico-sdk cmake -S . -B build
cmake --build build
```
## Command list
Fully compatible with FPGA-based [chipfail-glitcher](https://github.com/unixb0y/chipfail-glitcher), but not all commands are functional yet.
```
Soft Reset = b"@" = 64 = 0x40 ✓
Toggle LED = b"A" = 65 = 0x41 ✓
Power Cycle = b"B" = 66 = 0x42
Set Pulse Width = b"C" = 67 = 0x43 ✓
Set Delay = b"D" = 68 = 0x44 ✓
Set Power Pulse = b"E" = 69 = 0x45
Glitch = b"F" = 70 = 0x46 ✓
Read GPIO 0-7 = b"G" = 71 = 0x47
Enable power cycle = b"H" = 72 = 0x48
Get state = b"I" = 73 = 0x49 ✓
```