Suga koubou / Mbed 2 deprecated MODDMA_LLI_test

GPDMA (Direct Memory Access) and LLI (Link List Item) test see: http://mbed.org/users/okini3939/notebook/dma_jp/

Dependencies:   mbed

MODDMA/example1.h@1:1a77fa863282, 2013-09-13 (annotated)

Committer:
okini3939
Date:
Fri Sep 13 15:19:09 2013 +0000
Revision:
1:1a77fa863282
Parent:
0:de79d4a48e63 
fix more lli

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:de79d4a48e63 1 #include "mbed.h"
okini3939 0:de79d4a48e63 2 #include "MODDMA.h"
okini3939 0:de79d4a48e63 3 #include "MODSERIAL.h"
okini3939 0:de79d4a48e63 4
okini3939 0:de79d4a48e63 5 DigitalOut led1(LED1);
okini3939 0:de79d4a48e63 6 DigitalOut led2(LED2);
okini3939 0:de79d4a48e63 7 DigitalOut led3(LED3);
okini3939 0:de79d4a48e63 8 DigitalOut led4(LED4);
okini3939 0:de79d4a48e63 9 MODDMA dma;
okini3939 0:de79d4a48e63 10 MODSERIAL pc(USBTX, USBRX);
okini3939 0:de79d4a48e63 11
okini3939 0:de79d4a48e63 12 // Function prototypes for IRQ callbacks.
okini3939 0:de79d4a48e63 13 // See definitions following main() below.
okini3939 0:de79d4a48e63 14 void dmaTCCallback(void);
okini3939 0:de79d4a48e63 15 void dmaERRCallback(void);
okini3939 0:de79d4a48e63 16 void TC0_callback(void);
okini3939 0:de79d4a48e63 17 void ERR0_callback(void);
okini3939 0:de79d4a48e63 18
okini3939 0:de79d4a48e63 19 int main() {
okini3939 0:de79d4a48e63 20 char s[] = "**DMA** ABCDEFGHIJKLMNOPQRSTUVWXYZ **DMA**";
okini3939 0:de79d4a48e63 21
okini3939 0:de79d4a48e63 22 pc.baud(PC_BAUD);
okini3939 0:de79d4a48e63 23
okini3939 0:de79d4a48e63 24 dma.attach_tc( &dmaTCCallback );
okini3939 0:de79d4a48e63 25 dma.attach_err( &dmaERRCallback );
okini3939 0:de79d4a48e63 26
okini3939 0:de79d4a48e63 27 MODDMA_Config *config = new MODDMA_Config;
okini3939 0:de79d4a48e63 28 config
okini3939 0:de79d4a48e63 29 ->channelNum ( MODDMA::Channel_0 )
okini3939 0:de79d4a48e63 30 ->srcMemAddr ( (uint32_t) &s )
okini3939 0:de79d4a48e63 31 ->dstMemAddr ( 0 )
okini3939 0:de79d4a48e63 32 ->transferSize ( sizeof(s) )
okini3939 0:de79d4a48e63 33 ->transferType ( MODDMA::m2p )
okini3939 0:de79d4a48e63 34 ->transferWidth ( 0 )
okini3939 0:de79d4a48e63 35 ->srcConn ( 0 )
okini3939 0:de79d4a48e63 36 ->dstConn ( MODDMA::UART0_Tx )
okini3939 0:de79d4a48e63 37 ->dmaLLI ( 0 )
okini3939 0:de79d4a48e63 38 ->attach_tc ( &TC0_callback )
okini3939 0:de79d4a48e63 39 ->attach_err ( &ERR0_callback )
okini3939 0:de79d4a48e63 40 ; // config end
okini3939 0:de79d4a48e63 41
okini3939 0:de79d4a48e63 42 // Setup the configuration.
okini3939 0:de79d4a48e63 43 dma.Setup(config);
okini3939 0:de79d4a48e63 44
okini3939 0:de79d4a48e63 45 //dma.Enable( MODDMA::Channel_0 );
okini3939 0:de79d4a48e63 46 //dma.Enable( config->channelNum() );
okini3939 0:de79d4a48e63 47 dma.Enable( config );
okini3939 0:de79d4a48e63 48
okini3939 0:de79d4a48e63 49 while (1) {
okini3939 0:de79d4a48e63 50 led1 = !led1;
okini3939 0:de79d4a48e63 51 wait(0.25);
okini3939 0:de79d4a48e63 52 }
okini3939 0:de79d4a48e63 53 }
okini3939 0:de79d4a48e63 54
okini3939 0:de79d4a48e63 55 // Main controller TC IRQ callback
okini3939 0:de79d4a48e63 56 void dmaTCCallback(void) {
okini3939 0:de79d4a48e63 57 led2 = 1;
okini3939 0:de79d4a48e63 58 }
okini3939 0:de79d4a48e63 59
okini3939 0:de79d4a48e63 60 // Main controller ERR IRQ callback
okini3939 0:de79d4a48e63 61 void dmaERRCallback(void) {
okini3939 0:de79d4a48e63 62 error("Oh no! My Mbed exploded! :( Only kidding, find the problem");
okini3939 0:de79d4a48e63 63 }
okini3939 0:de79d4a48e63 64
okini3939 0:de79d4a48e63 65 // Configuration callback on TC
okini3939 0:de79d4a48e63 66 void TC0_callback(void) {
okini3939 0:de79d4a48e63 67 MODDMA_Config *config = dma.getConfig();
okini3939 0:de79d4a48e63 68 dma.haltAndWaitChannelComplete( (MODDMA::CHANNELS)config->channelNum());
okini3939 0:de79d4a48e63 69 dma.Disable( (MODDMA::CHANNELS)config->channelNum() );
okini3939 0:de79d4a48e63 70
okini3939 0:de79d4a48e63 71 // Configurations have two IRQ callbacks for TC and Err so you
okini3939 0:de79d4a48e63 72 // know which you are processing. However, if you want to use
okini3939 0:de79d4a48e63 73 // a single callback function you can tell what type of IRQ
okini3939 0:de79d4a48e63 74 // is being processed thus:-
okini3939 0:de79d4a48e63 75 if (dma.irqType() == MODDMA::TcIrq) {
okini3939 0:de79d4a48e63 76 led3 = 1;
okini3939 0:de79d4a48e63 77 dma.clearTcIrq();
okini3939 0:de79d4a48e63 78 }
okini3939 0:de79d4a48e63 79 if (dma.irqType() == MODDMA::ErrIrq) {
okini3939 0:de79d4a48e63 80 led4 = 1;
okini3939 0:de79d4a48e63 81 dma.clearErrIrq();
okini3939 0:de79d4a48e63 82 }
okini3939 0:de79d4a48e63 83 }
okini3939 0:de79d4a48e63 84
okini3939 0:de79d4a48e63 85 // Configuration cakllback on Error
okini3939 0:de79d4a48e63 86 void ERR0_callback(void) {
okini3939 0:de79d4a48e63 87 error("Oh no! My Mbed exploded! :( Only kidding, find the problem");
okini3939 0:de79d4a48e63 88 }
okini3939 0:de79d4a48e63 89