dsk5510_dma_mcbsp16_aic23.tci

MSP430与DSP接口技术3 编辑环境C语言,未试过,仅供参考

/*
 *  Copyright 2002 by Spectrum Digital Incorporated.
 *  All rights reserved.  Property of Spectrum Digital Incorporated.
 */

/*
 *  ======== dsk5510_dma_mcbsp16_aic23.tci ========
 */

/*
 *  Configure DMA transmit and receive for AIC23 codec audio data on the
 *  5510 DSK.  Configure DMA Channel 4 to receive data from the codec and
 *  channel 5 to transmit data to the codec.
 */


/*
 * ======== dmaCfgReceive ========
 * DMA congfiguration for Mcbsp receive channel.  Configure to receive a
 * codec data from from McBSP2 and put it in a buffer in DARAM.
 */

dmaCfgReceive = DMA.create("dmaCfgReceive");

dmaCfgReceive.dmaSetManually = 1;

dmaCfgReceive.dmaCsdp = 0x020d;  /* Source and Destination Parameters */
                /* DST BEN = 00b, no bursts */
                /* DST PACK = 0, no packing */
                /* DST = xx01b, DARAM */
                /* SRC BEN = 0, no bursts */
                /* SRC PACK = 0, no packing */
                /* SRC = xx11b, peripheral bus */
                /* DATA TYPE = 01b, 16-bit */
dmaCfgReceive.dmaCcr = 0x4049;  /* Channel Control */
                /* DST AMODE = 01b, post-increment */
                /* SRC AMODE = 00b, constant */
                /* END PROG = 0, not used */
                /* REPEAT = 0, not used */
                /* AUTOINIT = 0, no auto-init */
                /* EN = 0, don't enable (the app will enable when ready) */
                /* PRIO = 1, high priority */
                /* FS = 0, element synchronization */
                /* SYNC = 1001b, sync to McBSP2 receive event */
dmaCfgReceive.dmaCicr = 0x0008;  /* Interrupt Control */
                /* FRAME IE = 1, enable interrupt on frame complete */
dmaCfgReceive.dmaSrcSpaceAdv = "Data Space";  /* Source Address Space */
                /* Source address is in data space */
dmaCfgReceive.dmaSrcAddrFormatAdv = "Numeric";  /* Source Address Format */
                /* Source address format is numeric (not symbolic) */
dmaCfgReceive.dmaCssalNumeric = 0x6002;  /* Source Address (lower)*/
                /* Source address (lower) is byte address 0x6002 (McBSP2 DRR1) */
dmaCfgReceive.dmaCssauNumeric = 0x0000;  /* Source Address (upper) */
                /* Source address (upper) is 0 */
dmaCfgReceive.dmaDstSpaceAdv = "Data Space";  /* Destination Address Space */
                /* Destination is in data space */
dmaCfgReceive.dmaDstAddrFormatAdv = "Numeric";  /* Destination Address Format */
                /* Destination address format is numeric (not symbolic) */
dmaCfgReceive.dmaCdsalNumeric = 0x0000;  /* Destination Address (lower) */
                /* Destination address (lower) is 0, filled by app later */
dmaCfgReceive.dmaCdsauNumeric = 0x0000;  /* Destination Address (upper) */
                /* Destination address (upper) is 0, filled by app later */
dmaCfgReceive.dmaCenAdv = 0x0100;  /* Channel Element Count */
                /* CEN = 256, 256 elements per frame */
dmaCfgReceive.dmaCfnAdv = 0x0001;  /* Channel Frame Count */
                /* CFN = 1, 1 frame per block */

dmaCfgReceive.dmaSetManually = 0;


/*
 * ======== dmaCfgTransmit ========
 * DMA congfiguration for Mcbsp transmit channel.  Configure to transmit a
 * frame to McBSP2 from a buffer in DARAM.
 */

dmaCfgTransmit = DMA.create("dmaCfgTransmit");

dmaCfgTransmit.dmaSetManually = 1;

dmaCfgTransmit.dmaCsdp = 0x0605;  /* Source and Destination Parameters */
                /* DST BEN = 00b, no bursts */
                /* DST PACK = 0, no packing */
                /* DST = xx11b, peripheral bus */
                /* SRC BEN = 0, no bursts */
                /* SRC PACK = 0, no packing */
                /* SRC = xx01b, DARAM */
                /* DATA TYPE = 01b, 16-bit */
dmaCfgTransmit.dmaCcr = 0x104a;  /* Channel Control */
                /* DST AMODE = 00b, constant */
                /* SRC AMODE = 01b, post-increment */
                /* END PROG = 0, not used */
                /* REPEAT = 0, not used */
                /* AUTOINIT = 0, no auto-init */
                /* EN = 0, don't enable (the app will enable when ready) */
                /* PRIO = 1, high priority */
                /* FS = 0, element synchronization */
                /* SYNC = 1010b, sync to McBSP2 transmit event */
dmaCfgTransmit.dmaCicr = 0x0008;  /* Interrupt Control */
                /* FRAME IE = 1, enable interrupt on frame complete */
dmaCfgTransmit.dmaSrcSpaceAdv = "Data Space";  /* Source Address Space */
                /* Source address is in data space */
dmaCfgTransmit.dmaSrcAddrFormatAdv = "Numeric";  /* Source Address Format */
                /* Source address format is numeric (not symbolic) */
dmaCfgTransmit.dmaCssalNumeric = 0x0000;  /* Source Address (lower) */
                /* Source address (lower) is 0, filled by app later */
dmaCfgTransmit.dmaCssauNumeric = 0x0000;  /* Source Address (upper) */
                /* Source address (upper) is 0, filled by app later */
dmaCfgTransmit.dmaDstSpaceAdv = "Data Space";  /* Destination Address Space */
                /* Destination address is in data space */
dmaCfgTransmit.dmaDstAddrFormatAdv = "Numeric";  /* Destination Address Format */
                /* Destination address format is number (not symbolic) */
dmaCfgTransmit.dmaCdsalNumeric = 0x6006;  /* Destination Address (lower) */
                /* Source address (lower) is byte address 0x6006 (McBSP2 DXR1) */
dmaCfgTransmit.dmaCdsauNumeric = 0x0000;  /* Destiantion Address (upper) */
                /* Source address (lower) is 0 */
dmaCfgTransmit.dmaCenAdv = 0x0100;  /* Channel Element Count */
                /* CEN = 256, 256 elements per frame */
dmaCfgTransmit.dmaCfnAdv = 0x0001;  /* Channel Frame Count */
                /* CFN = 1, 1 frame per block */

dmaCfgTransmit.dmaSetManually = 0;

/*
 * ======== DMA4 ========
 * Mcbsp transmit hooked up to DMA4 channel
 */
DMA4.dmaHandleEnable = 1;

DMA4.dmaHandleName = "C55XX_DMA_MCBSP_hDmaRx";
DMA4.dmaEnablePreInit = 1;
DMA4.dmaPreInit = prog.get("dmaCfgReceive");

/*
 * ======== DMA5 ========
 * Mcbsp receive hooked up to DMA5 channel
 */
DMA5.dmaHandleEnable = 1;
DMA5.dmaHandleName = "C55XX_DMA_MCBSP_hDmaTx";
DMA5.dmaEnablePreInit = 1;
DMA5.dmaPreInit = prog.get("dmaCfgTransmit");