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-rw-r--r--ports/samd/boards/ADAFRUIT_TRINKET_M0/mpconfigboard.h2
-rw-r--r--ports/samd/boards/MINISAM_M4/mpconfigboard.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/ports/samd/boards/ADAFRUIT_TRINKET_M0/mpconfigboard.h b/ports/samd/boards/ADAFRUIT_TRINKET_M0/mpconfigboard.h
index d3a6ba2d8..5732a20e3 100644
--- a/ports/samd/boards/ADAFRUIT_TRINKET_M0/mpconfigboard.h
+++ b/ports/samd/boards/ADAFRUIT_TRINKET_M0/mpconfigboard.h
@@ -1,2 +1,4 @@
#define MICROPY_HW_BOARD_NAME "Trinket M0"
#define MICROPY_HW_MCU_NAME "SAMD21E18A"
+
+#define MICROPY_HW_DFLL_USB_SYNC (1)
diff --git a/ports/samd/boards/MINISAM_M4/mpconfigboard.h b/ports/samd/boards/MINISAM_M4/mpconfigboard.h
index 2dc403bad..87acf301e 100644
--- a/ports/samd/boards/MINISAM_M4/mpconfigboard.h
+++ b/ports/samd/boards/MINISAM_M4/mpconfigboard.h
@@ -1,4 +1,6 @@
#define MICROPY_HW_BOARD_NAME "Mini SAM M4"
#define MICROPY_HW_MCU_NAME "SAMD51G19A"
+#define MICROPY_HW_DFLL_USB_SYNC (1)
+
#define MICROPY_HW_QSPIFLASH GD25Q16C