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-rw-r--r--ports/ARMCM3-STM32F103/vectors.s1
1 files changed, 1 insertions, 0 deletions
diff --git a/ports/ARMCM3-STM32F103/vectors.s b/ports/ARMCM3-STM32F103/vectors.s
index 21a5910c1..7362f458e 100644
--- a/ports/ARMCM3-STM32F103/vectors.s
+++ b/ports/ARMCM3-STM32F103/vectors.s
@@ -18,6 +18,7 @@
*/
.syntax unified
+.thumb
.section INTVEC
_vectors: