a2fpga_core

Flash an A2FPGA board's FPGA BITSTREAM (the .fs gateware) with openFPGALoader. Use when the user asks to flash, program, upload, load, or deploy a BITSTREAM/gateware to a board (a2mega, a2n20v2, a2n20v2-GS, a2n20v2-Enhanced, a2p25, a2n9, a2n20v1). NOT for the a2n20v2-Enhanced BL616 MCU/microcontroller FIRMWARE — for that use the `flash-mcu` skill (different tool, different chip; using this one would not touch the BL616).

First-run environment setup for the A2FPGA project — detect which build/flash toolchains are installed (Gowin, openFPGALoader, BL616 firmware, ESP32 firmware) and guide installing the missing ones. Use when a new user or agent is getting started, has just cloned the repo, or asks to set up / check the build environment.

Flash the BL616 MCU firmware on the a2n20v2-Enhanced board (Tang Nano 20K) using the a2n20-mcu-program tool. Use when the user asks to flash, program, upload, or update the BL616 / MCU / microcontroller firmware (the FT2232 device build or the USB-host XInput build) — NOT the FPGA bitstream (use the `flash` skill for that).

Build (synthesize + place & route) an A2FPGA FPGA board with the Gowin gw_sh CLI and verify timing. Use when the user asks to build, synthesize, compile, run PnR, or generate a bitstream for a board (a2mega, a2n20v2, a2n20v2-GS, a2n20v2-Enhanced, a2p25, a2n9, a2n20v1).