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Add "esp32-small" build target #111

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Merged
ThomasFarstrike merged 1 commit into from
Apr 7, 2026
Merged

Add "esp32-small" build target #111

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68 changes: 41 additions & 27 deletions scripts/build_mpos.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,14 +8,15 @@ target="$1"
buildtype="$2"

if [ -z "$target" ]; then
echo "Usage: $0 target"
echo "Usage: $0 <esp32 or unix or macOS>"
echo "Example: $0 unix"
echo "Example: $0 macOS"
echo "Example: $0 esp32"
echo "Example: $0 esp32s3"
echo "Example: $0 unphone"
echo "Example: $0 clean"
echo "Usage: $0 target"
echo "Usage: $0 <esp32 or esp32-small or unix or macOS>"
echo "Example: $0 unix"
echo "Example: $0 macOS"
echo "Example: $0 esp32"
echo "Example: $0 esp32-small"
echo "Example: $0 esp32s3"
echo "Example: $0 unphone"
echo "Example: $0 clean"
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@jedie jedie Apr 6, 2026

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This are only whitespace changes and the added esp32-small line

exit 1
fi

Expand Down Expand Up @@ -106,20 +107,27 @@ popd
echo "Refreshing freezefs..."
"$codebasedir"/scripts/freezefs_mount_builtin.sh

if [ "$target" == "esp32" -o "$target" == "esp32s3" -o "$target" == "unphone" ]; then
partition_size="4194304"
flash_size="16"
if [ "$target" == "esp32" -o "$target" == "esp32s3" -o "$target" == "unphone" -o "$target" == "esp32-small" ]; then
partition_size="4194304"
flash_size="16"
otasupport="--ota"
extra_configs=""
if [ "$target" == "esp32" ]; then
if [ "$target" == "esp32" ]; then
BOARD=ESP32_GENERIC
BOARD_VARIANT=SPIRAM
elif [ "$target" == "esp32-small" ]; then
# No PSRAM, so do not set SPIRAM-specific options
BOARD=ESP32_GENERIC
BOARD_VARIANT=
partition_size="3900000"
flash_size="4"
otasupport="" # too small for 2 OTA partitions + internal storage
else # esp32s3 or unphone
if [ "$target" == "unphone" ]; then
partition_size="3900000"
flash_size="8"
if [ "$target" == "unphone" ]; then
partition_size="3900000"
flash_size="8"
otasupport="" # too small for 2 OTA partitions + internal storage
fi
fi
BOARD=ESP32_GENERIC_S3
BOARD_VARIANT=SPIRAM_OCT
# These options disable hardware AES, SHA and MPI because they give warnings in QEMU: [AES] Error reading from GDMA buffer
Expand All @@ -128,6 +136,12 @@ if [ "$target" == "esp32" -o "$target" == "esp32s3" -o "$target" == "unphone" ];
# --py-freertos: add MicroPython FreeRTOS module to expose internals
extra_configs="$extra_configs --py-freertos"
fi

if [ "$BOARD_VARIANT" == "SPIRAM" -o "$BOARD_VARIANT" == "SPIRAM_OCT" ]; then
# Camera only works on boards configured with spiram, otherwise the build breaks
extra_configs="$extra_configs USER_C_MODULE=$codebasedir/micropython-camera-API/src/micropython.cmake"
fi

manifest=$(readlink -f "$codebasedir"/manifests/manifest.py)
frozenmanifest="FROZEN_MANIFEST=$manifest" # Comment this out if you want to make a build without any frozen files, just an empty MicroPython + whatever files you have on the internal storage
echo "Note that you can also prevent the builtin filesystem from being mounted by umounting it and creating a builtin/ folder."
Expand All @@ -148,17 +162,17 @@ if [ "$target" == "esp32" -o "$target" == "esp32s3" -o "$target" == "unphone" ];
# CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=y
# CONFIG_ADC_MIC_TASK_CORE=1 because with the default (-1) it hangs the CPU
# CONFIG_SPIRAM_XIP_FROM_PSRAM: load entire firmware into RAM to reduce SD vs PSRAM contention (recommended at https://github.com/MicroPythonOS/MicroPythonOS/issues/17)
python3 make.py "$otasupport" --optimize-size --partition-size=$partition_size --flash-size=$flash_size esp32 BOARD=$BOARD BOARD_VARIANT=$BOARD_VARIANT \
USER_C_MODULE="$codebasedir"/micropython-camera-API/src/micropython.cmake \
USER_C_MODULE="$codebasedir"/secp256k1-embedded-ecdh/micropython.cmake \
USER_C_MODULE="$codebasedir"/c_mpos/micropython.cmake \
CONFIG_FREERTOS_USE_TRACE_FACILITY=y \
CONFIG_FREERTOS_VTASKLIST_INCLUDE_COREID=y \
CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=y \
CONFIG_ADC_MIC_TASK_CORE=1 \
$extra_configs \
"$frozenmanifest"

set -x
python3 make.py $otasupport --optimize-size --partition-size=$partition_size --flash-size=$flash_size esp32 BOARD=$BOARD BOARD_VARIANT=$BOARD_VARIANT \
USER_C_MODULE="$codebasedir"/secp256k1-embedded-ecdh/micropython.cmake \
USER_C_MODULE="$codebasedir"/c_mpos/micropython.cmake \
CONFIG_FREERTOS_USE_TRACE_FACILITY=y \
CONFIG_FREERTOS_VTASKLIST_INCLUDE_COREID=y \
CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=y \
CONFIG_ADC_MIC_TASK_CORE=1 \
$extra_configs \
"$frozenmanifest"
set +x
popd
elif [ "$target" == "unix" -o "$target" == "macOS" ]; then
manifest=$(readlink -f "$codebasedir"/manifests/manifest.py)
Expand Down
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