A collection of useful IP and information on how to develop openFPGA cores for the Analogue Pocket.
For tips, tricks, and various learnings from a software dev's perspective, check out the wiki.
When possible, IPs will be provided with test benches.
| HDL File | Usage |
|---|---|
| mem/psram.sv | Generic PSRAM controller, configured with timing for the Pocket's PSRAM. Supports synchronous access in async mode. |
| debug_key.v | Enables LED/button/UART usage for the debug key included with Analogue Pocket Dev Kits |
| data_loader.sv | Converts APF writes into configurable single or two byte words. TB tests both 8 and 16 bit writes |
| data_unloader.sv | Connects APF reads into memory fetches, with configurable single or two byte words. TB tests both 8 and 16 bit reads |
| hex_loader.v | Converts APF writes representing a hex file into bytes. Can be converted for use outside of APF. Has an involved TB |
| sound_i2s.sv | Provides audio over the i2s bridge. Supports signed and unsigned audio |
| sync_fifo.sv | An easily reusable method for synchronizing multiple bits across clock domains |
You must set "cartridge_adapter": 0 in the core.json file, otherwise - the dev key doesn't work, and be careful when you distribute as well, or you will waste power.
This example demonstrates controlling the Debug Key's LED with the button.
wire LED;
wire button;
assign LED = button;
debug_key key (
.cart_tran_bank0_dir(cart_tran_bank0_dir),
.cart_tran_bank0(cart_tran_bank0),
.cart_tran_bank3_dir(cart_tran_bank3_dir),
.cart_tran_bank3(cart_tran_bank3),
.LED(LED),
.button(button)
);- https://github.com/agg23/openfpga-chip32-sim - Simulator for the CHIP32 VM
- https://github.com/agg23/Analogue-Pocket-Image-Process - Small Node project to create and extract APF image bins
- https://github.com/codewario/PocketLibraryImageConversion - PS script to generate Library thumbnails
- https://github.com/RetroDriven/Pocket_Updater - Windows GUI
- https://github.com/mattpannella/pocket_core_autoupdate_net - C# updater
- https://github.com/rivergillis/update-pocket - Python updater
- https://gitlab.com/jgdigitaljedi/pocket-update-notifier - Node.js updater
A sample of open source cores are provided here. This list updates rapidly and is likely incomplete. You can see the complete list at https://joshcampbell191.github.io/openfpga-cores-inventory/analogue-pocket.html