X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fcortex-m3%2Fdrv%2Fdmac_sam3.c;h=06dba6ea9d558b158454a80a8d89b2e567d7c34a;hb=6970f4233dd70293d45f2df4406c581128e887dc;hp=7c5511749f87e2d3ae6f815e111d9a0c8b6e5ca6;hpb=1aa458af0b11f83627f7c8365acf6b74f52f18d3;p=bertos.git

diff --git a/bertos/cpu/cortex-m3/drv/dmac_sam3.c b/bertos/cpu/cortex-m3/drv/dmac_sam3.c
index 7c551174..06dba6ea 100644
--- a/bertos/cpu/cortex-m3/drv/dmac_sam3.c
+++ b/bertos/cpu/cortex-m3/drv/dmac_sam3.c
@@ -109,7 +109,6 @@ struct DmacCh dmac_ch[] =
 	},
 };
 
-
 /* We use event to signal the end of conversion */
 static Dmac dmac[DMAC_CHANNEL_CNT];
 static uint8_t dmac_ch_enabled;
@@ -117,6 +116,8 @@ static uint8_t dmac_ch_enabled;
 void dmac_setLLITransfer(int ch, DmacDesc *lli, uint32_t cfg)
 {
 	DMAC_CHDR = BV(ch);
+	reg32_t reg = DMAC_EBCISR;
+	(void)reg;
 
 	*dmac_ch[ch].cfg = cfg | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT);
 	*dmac_ch[ch].desc = (uint32_t)lli;
@@ -135,7 +136,7 @@ void dmac_configureDmac(int ch, size_t transfer_size, uint32_t cfg, uint32_t ctr
 {
 	DMAC_CHDR = BV(ch);
 
-	*dmac_ch[ch].cfg = cfg | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT) | BV(DMAC_CFG_SOD);
+	*dmac_ch[ch].cfg = cfg | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT);
 	*dmac_ch[ch].ctrla = ctrla | (transfer_size & DMAC_CTRLA_BTSIZE_MASK);
 	*dmac_ch[ch].ctrlb = ctrlb & ~BV(DMAC_CTRLB_IEN);
 }
@@ -148,6 +149,7 @@ int dmac_start(int ch)
 		return -1;
 	}
 	DMAC_CHER = BV(ch);
+	dmac_ch_enabled |= BV(ch);
 	return 0;
 }