Files

Piotr Esden-Tempski 976720c355 Updated libopencm3 to current master. Made all examples compile again.

Be specifically careful with the usb examples. There is likely some
breakage to be expected, not sure I updated all the drivers to the
correct types for the respective chips.

2015-12-15 00:56:25 +01:00

dac-dma.c

Updated libopencm3 to current master. Made all examples compile again.

2015-12-15 00:56:25 +01:00

Makefile

[stm32f429i-discovery] Added dac dma example.

2015-01-15 01:06:48 -08:00

README.md

[README] Coarse sweep to use markup in READMEs.

2015-01-19 19:20:12 -08:00

scope-output.png

[stm32f429i-discovery] Added dac dma example.

2015-01-15 01:06:48 -08:00

README.md

README

DAC test with DMA and timer 2 trigger

Timer 2 is setup to provide a trigger signal on OC1, with a period of 142 Hz

The DAC is setup on channel 1 to output a sample on the timer trigger.

DMA controller 1, stream 5, channel 7 is used to move data from a predefined array in circular mode when the DAC requests.

DMA transfer complete occurs when the data array has been passed through. In the ISR port PC1 is toggled to provide a CRO trigger.

The analogue output appears on PA4 (DAC channel 1).

Tested and working, example capture from an oscilloscope is included

Ken Sarkies 15/01/2014