From b6e2d2a9d3acd89cdace2a535cfb183bce66fe58 Mon Sep 17 00:00:00 2001
From: Manuel Odendahl <wesen@ruinwesen.com>
Date: Tue, 8 Jan 2013 16:43:38 +0100
Subject: Set DCNTR before starting DMA transfer.
I am not sure why this would work for most DMA transfers but I ran into trouble when doing
SDIO DMA.
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
---
libmaple/stm32f1/include/series/dma.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'libmaple/stm32f1/include')
diff --git a/libmaple/stm32f1/include/series/dma.h b/libmaple/stm32f1/include/series/dma.h
index 3b19e2b..bedb602 100644
--- a/libmaple/stm32f1/include/series/dma.h
+++ b/libmaple/stm32f1/include/series/dma.h
@@ -145,6 +145,16 @@ typedef struct dma_tube_reg_map {
/* Interrupt status register */
+#define DMA_ISR_TEIF_BIT 3
+#define DMA_ISR_HTIF_BIT 2
+#define DMA_ISR_TCIF_BIT 1
+#define DMA_ISR_GIF_BIT 0
+
+#define DMA_ISR_TEIF (1 << DMA_ISR_TEIF_BIT)
+#define DMA_ISR_HTIF (1 << DMA_ISR_HTIF_BIT)
+#define DMA_ISR_TCID (1 << DMA_ISR_TCIF_BIT)
+#define DMA_ISR_GIF (1 << DMA_ISR_GIF_BIT)
+
#define DMA_ISR_TEIF7_BIT 27
#define DMA_ISR_HTIF7_BIT 26
#define DMA_ISR_TCIF7_BIT 25
--
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