dma_ex1_repeatedBlock.c File Reference

#include "driverlib.h"

Go to the source code of this file.

Functions
void	main (void)

Function Documentation

main()

void main

(

void

)

DMA - Repeated Block Transfer to-and-from RAM, Software Trigger.

A 16 word block from 1C00-1C1Fh is transfered to 1C20h-1C3fh using DMA0 in a burst block using software DMAREQ trigger. After each transfer, source, destination and DMA size are reset to initial software setting because DMA transfer mode 5 is used. P1.0 is toggled during DMA transfer only for demonstration purposes. ** RAM location 0x1C00 - 0x1C3F used - make sure no compiler conflict ** ACLK = REFO = 32kHz, MCLK = SMCLK = default DCO 1048576Hz

Tested on MSP430FR5969

/|| XIN|- | | | 32kHz –|RST XOUT|- | | | P1.0|-> LED | |

This example uses the following peripherals and I/O signals. You must review these and change as needed for your own board:

• DMA peripheral
• GPIO Port peripheral

This example uses the following interrupt handlers. To use this example in your own application you must add these interrupt handlers to your vector table.

• None.

Definition at line 68 of file dma_ex1_repeatedBlock.c.

References GPIO_setOutputHighOnPin(), GPIO_setOutputLowOnPin(), and param.