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-rw-r--r--libmaple/stm32f1/include/series/dma.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libmaple/stm32f1/include/series/dma.h b/libmaple/stm32f1/include/series/dma.h
index 6da3246..3b19e2b 100644
--- a/libmaple/stm32f1/include/series/dma.h
+++ b/libmaple/stm32f1/include/series/dma.h
@@ -293,6 +293,8 @@ typedef struct dma_tube_reg_map {
#define DMA_CCR_PINC (1U << DMA_CCR_PINC_BIT)
#define DMA_CCR_CIRC (1U << DMA_CCR_CIRC_BIT)
#define DMA_CCR_DIR (1U << DMA_CCR_DIR_BIT)
+#define DMA_CCR_DIR_FROM_PER (0U << DMA_CCR_DIR_BIT)
+#define DMA_CCR_DIR_FROM_MEM (1U << DMA_CCR_DIR_BIT)
#define DMA_CCR_TEIE (1U << DMA_CCR_TEIE_BIT)
#define DMA_CCR_HTIE (1U << DMA_CCR_HTIE_BIT)
#define DMA_CCR_TCIE (1U << DMA_CCR_TCIE_BIT)