Jared Baxter
/
Impedance_Fast_Circuitry_print_V_I
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Fork of
Impedance_Fast_Circuitry
by 
Jared Baxter
Diff: dma.cpp
- Revision:
- 43:c593a8b9688f
- Parent:
- 42:52a92a8d2cc7
- Child:
- 44:41c262caf898
--- a/dma.cpp Fri Jan 30 07:22:00 2015 +0000
+++ b/dma.cpp Fri Jan 30 08:14:36 2015 +0000
@@ -22,7 +22,7 @@
_array2 = sample_array2;
_array3 = sample_array3;
_len = len;
- _angle = (int*)PORTC_BASE;//relative_angle;
+ _angle = (int*)PORTC_BASE_PTR;//relative_angle;
init();
}
@@ -39,7 +39,7 @@
// Enable Channel 0 and set ADC0 as DMA request source
DMAMUX_CHCFG0 |= DMAMUX_CHCFG_ENBL_MASK | DMAMUX_CHCFG_SOURCE(40); // see page 95 of user manual
DMAMUX_CHCFG1 |= DMAMUX_CHCFG_ENBL_MASK | DMAMUX_CHCFG_SOURCE(41);
- //DMAMUX_CHCFG2 |= DMAMUX_CHCFG_ENBL_MASK |
+ DMAMUX_CHCFG2 |= DMAMUX_CHCFG_ENBL_MASK | DMAMUX_CHCFG_TRIG_MASK | DMAMUX_CHCFG_SOURCE(51); // PortC
// Enable request signal for channel 0
@@ -50,7 +50,7 @@
DMA_TCD0_DADDR = (uint32_t) _array1;
DMA_TCD1_SADDR = (uint32_t)&ADC1_RA;
DMA_TCD1_DADDR = (uint32_t) _array2;
- DMA_TCD2_SADDR = (uint32_t) _angle;
+ DMA_TCD2_SADDR = (uint32_t) PORTC_BASE_PTR;
DMA_TCD2_DADDR = (uint32_t) _array3;
// Set an offset for source and destination address