CI: Bump to MicroPython v1.20 with new patch.

Author: Gadgetoid

.github/workflows/micropython.yml

@@ -7,8 +7,8 @@ on:
     types: [created]
 
 env:
-  MICROPYTHON_VERSION: 38e7b842c6bc8122753cbf0845eb141f28fbcb72
-  PIMORONI_PICO_VERSION: v1.19.18
+  MICROPYTHON_VERSION: v1.20.0
+  PIMORONI_PICO_VERSION: v1.20.1
 
 jobs:
   deps:
@@ -117,13 +117,18 @@ jobs:
         ref: v0.0.1
         path: dir2uf2
 
-     # HACK: Patch startup overclock into Pico SDK
+    # HACK: Patch startup overclock into Pico SDK
     - name: "HACK: Startup Overclock Patch"
       shell: bash
       working-directory: micropython/lib/pico-sdk
       run: |
         git apply "${{env.FIRMWARE_DIR}}/startup_overclock.patch"
 
+    - name: "HACK: CMakeLists.txt Disable C++ Exceptions Patch"
+      shell: bash
+      working-directory: micropython
+      run: git apply "${{env.FIRMWARE_DIR}}/micropython_nano_specs.patch"
+
     # Install apt packages
     - name: Install CCache & Compiler
       shell: bash

firmware/PIMORONI_BADGER2040/mpconfigboard.cmake

@@ -2,4 +2,6 @@
 set(MICROPY_BOARD PICO)
 
 # Board specific version of the frozen manifest
-set(MICROPY_FROZEN_MANIFEST ${CMAKE_CURRENT_LIST_DIR}/manifest.py)
+set(MICROPY_FROZEN_MANIFEST ${CMAKE_CURRENT_LIST_DIR}/manifest.py)
+
+set(MICROPY_C_HEAP_SIZE 4096)

firmware/PIMORONI_BADGER2040W/mpconfigboard.cmake

@@ -5,4 +5,6 @@ set(MICROPY_PY_LWIP ON)
 set(MICROPY_PY_NETWORK_CYW43 ON)
 
 # Board specific version of the frozen manifest
-set(MICROPY_FROZEN_MANIFEST ${CMAKE_CURRENT_LIST_DIR}/manifest.py)
+set(MICROPY_FROZEN_MANIFEST ${CMAKE_CURRENT_LIST_DIR}/manifest.py)
+
+set(MICROPY_C_HEAP_SIZE 4096)

firmware/PIMORONI_BADGER2040W/mpconfigboard.h

@@ -4,6 +4,7 @@
 
 // Enable networking.
 #define MICROPY_PY_NETWORK 1
+#define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT     "Badger2040W"
 
 // CYW43 driver configuration.
 #define CYW43_USE_SPI (1)

firmware/micropython_nano_specs.patch

@@ -0,0 +1,20 @@
+diff --git a/ports/rp2/CMakeLists.txt b/ports/rp2/CMakeLists.txt
+index 094031c6852a..5f268414c08f 100644
+--- a/ports/rp2/CMakeLists.txt
++++ b/ports/rp2/CMakeLists.txt
+@@ -374,6 +374,15 @@ target_compile_options(${MICROPY_TARGET} PRIVATE
+ target_link_options(${MICROPY_TARGET} PRIVATE
+     -Wl,--defsym=__micropy_c_heap_size__=${MICROPY_C_HEAP_SIZE}
+ )
++# Do not include stack unwinding & exception handling for C++ user modules
++target_compile_definitions(usermod INTERFACE PICO_CXX_ENABLE_EXCEPTIONS=0)
++target_compile_options(usermod INTERFACE $<$<COMPILE_LANGUAGE:CXX>:
++    -fno-exceptions
++    -fno-unwind-tables
++    -fno-rtti
++    -fno-use-cxa-atexit
++>)
++target_link_options(usermod INTERFACE -specs=nano.specs)
+
+ set_source_files_properties(
+     ${PICO_SDK_PATH}/src/rp2_common/pico_double/double_math.c