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-rw-r--r--arch/arm/include/debug/zynq.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
index bd13dedbdeff..de86b9247564 100644
--- a/arch/arm/include/debug/zynq.S
+++ b/arch/arm/include/debug/zynq.S
@@ -38,7 +38,7 @@
.endm
.macro senduart,rd,rx
- str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
+ strb \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
.endm
.macro waituart,rd,rx