https://github.com/tommypop2/stepper-driving

https://github.com/tommypop2/stepper-driving

Last synced: 24 days ago
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• Host: GitHub
• URL: https://github.com/tommypop2/stepper-driving
• Owner: Tommypop2
• Created: 2024-08-14T15:49:50.000Z (3 months ago)
• Default Branch: main
• Last Pushed: 2024-08-21T13:04:51.000Z (3 months ago)
• Last Synced: 2024-08-22T02:26:23.847Z (3 months ago)
• Language: Rust
• Size: 40 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Test Repository for Concurrent Stepper Driving Code

## Reproductions

### `with_pio` binary

Replacing `PIO0` with `PIO1` stops the code from working, even though both state machines blocks should function identically.

### `multiple-drivers` binary

DRIVER_1 is controlled properly, whereas DRIVER_2 isn't. If the names are switched, the same occurs - indicating that the issue isn't in incorrect pin configuration.

This same issue occurs both when trying to use 2 state machines from the same block, or 2 state machines from different blocks.

It seems to be caused by interrupts not firing properly. When enabling both, only the PIO 0 interrupt fires:

```

pio0.irq1().enable_sm_interrupt(1);

pio1.irq1().enable_sm_interrupt(1);

```

I thought this might've been due to the IRQ relative addressing (using mod 4 sums), but no amount of changing the `irq ` instruction caused the other interrupt to fire.