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-rw-r--r--ports/samd/Makefile2
-rw-r--r--ports/samd/mcu/samd21/mpconfigmcu.mk2
-rw-r--r--ports/samd/mcu/samd51/mpconfigmcu.mk2
3 files changed, 5 insertions, 1 deletions
diff --git a/ports/samd/Makefile b/ports/samd/Makefile
index 487a9cb38..75a4d9b1d 100644
--- a/ports/samd/Makefile
+++ b/ports/samd/Makefile
@@ -183,7 +183,7 @@ $(BUILD)/firmware.bin: $(BUILD)/firmware.elf
$(Q)$(OBJCOPY) -O binary -j .isr_vector -j .text -j .data $^ $(BUILD)/firmware.bin
$(BUILD)/firmware.uf2: $(BUILD)/firmware.bin
- $(Q)$(PYTHON) $(UF2CONV) -b $(TEXT0) -c -o $@ $<
+ $(Q)$(PYTHON) $(UF2CONV) $(UF2CONV_FLAGS) -b $(TEXT0) -c -o $@ $<
# pin_af.c: $(BUILD)/$(GEN_PIN_AF) | $(HEADER_BUILD)
diff --git a/ports/samd/mcu/samd21/mpconfigmcu.mk b/ports/samd/mcu/samd21/mpconfigmcu.mk
index 89e63c3aa..34209775c 100644
--- a/ports/samd/mcu/samd21/mpconfigmcu.mk
+++ b/ports/samd/mcu/samd21/mpconfigmcu.mk
@@ -13,3 +13,5 @@ endif
MICROPY_VFS_LFS1 ?= 1
SRC_S += shared/runtime/gchelper_thumb1.s
+
+UF2CONV_FLAGS += -f 0x68ed2b88
diff --git a/ports/samd/mcu/samd51/mpconfigmcu.mk b/ports/samd/mcu/samd51/mpconfigmcu.mk
index 0201bacff..9bef5eca1 100644
--- a/ports/samd/mcu/samd51/mpconfigmcu.mk
+++ b/ports/samd/mcu/samd51/mpconfigmcu.mk
@@ -14,3 +14,5 @@ SRC_S += shared/runtime/gchelper_thumb2.s
SRC_C += \
fatfs_port.c \
+
+UF2CONV_FLAGS += -f 0x55114460