feat(dfu_ext): Add ext dfu flash

.cargo/config.toml

@@ -0,0 +1,8 @@
+[target.thumbv6m-none-eabi]
+runner = "probe-rs run --chip RP2040"
+
+[target.thumbv7em-none-eabihf]
+runner = "probe-rs run --chip nRF52840_xxAA"
+
+[env]
+DEFMT_LOG = "trace"

.github/workflows/release.yml

@@ -20,15 +20,26 @@ jobs:
       - name: Build all UF2 variants
         run: cargo make uf2-all
 
-      - name: Copy nRF ELF
-        run: cp target/thumbv7em-none-eabihf/release/rmk-boot rmk-boot-nrf52840.elf
+      - name: Copy nRF ELFs
+        run: |
+          cp target/thumbv7em-none-eabihf/release/rmk-boot rmk-boot-nrf52840.elf
+          cargo build --release --target thumbv7em-none-eabihf --features nrf52833
+          cp target/thumbv7em-none-eabihf/release/rmk-boot rmk-boot-nrf52833.elf
+          cargo build --release --target thumbv7em-none-eabihf --features nrf52840,noswap
+          cp target/thumbv7em-none-eabihf/release/rmk-boot rmk-boot-nrf52840-noswap.elf
+          cargo build --release --target thumbv7em-none-eabihf --features nrf52833,noswap
+          cp target/thumbv7em-none-eabihf/release/rmk-boot rmk-boot-nrf52833-noswap.elf
 
       - name: Upload release assets
         uses: softprops/action-gh-release@v2
         with:
           files: |
             *.uf2
             *.hex
+            *.x
             rmk-boot-nrf52840.elf
+            rmk-boot-nrf52833.elf
+            rmk-boot-nrf52840-noswap.elf
+            rmk-boot-nrf52833-noswap.elf
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -3,6 +3,10 @@
 debug
 target
 
+# Generated by build.rs — linker script for consumption by RMK projects
+rmk-memory.x
+rmk-*-memory.x
+
 # These are backup files generated by rustfmt
 **/*.rs.bk