dsk5510_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_aic23.tci ========
 */

/*
 *  This script configures the McBSPs to communicate with an AIC23 codec.
 *  McBSP1 is used in SPI format as the control channel with clocks being
 *  coming from the internal sample rate generator.  McBSP2 is the data
 *  channel.  It is used in master mode using the codec's bi-directional
 *  DSP data format.  Each sample consists of one frame with two 16-bit
 *  elements corresponding to left and right.  Clocks and frame syncs on
 *  the data channel are generated by the AIC23 external to the DSP.
 */

/*
 * ======== mcbspCfg1 ========
 * Create a mcbsp configuration object use for the mcbsp2 talking
 * to the aic23 codec.  The format is SPI with 16-bit frames.  All clocks
 * and frame syncs are generated internally.
 */

var mcbspCfg1 = MCBSP.create("mcbspCfg1");

mcbspCfg1.mcbspManualSet = 1;

mcbspCfg1.mcbspSpcr1 = 0x1000;  /* Serial Port Control Register 1 */
                /* Digital loopback disabled */
                /* Right justified and sign extended */
                /* Clock stop mode w/no delay */
                /* Dx delay enabled and Abis mode both off */
                /* RINT driven by RRDY */
                /* Receiver in reset */

mcbspCfg1.mcbspSpcr2 = 0x0100;  /* Serial Port Control Register 2 */
                /* Free bit not set */
                /* XINT driven by XRDY */
                /* FSGR, SRGR and Transmitter in reset */
                /* XRST, RRST, FRST and GRST need to */
                /* be enabled in MCBSP_start() */

mcbspCfg1.mcbspRcr1 = 0x0000;   /* Receive Control Register 1 */
                /* Receive not used */

mcbspCfg1.mcbspRcr2 = 0x0000;   /* Receive Control Register 2 */
                /* Single phase */

mcbspCfg1.mcbspXcr1 = 0x0040;   /* Transmit Control Register 1 */
                /* Frame length is 1 word/frame */
                /* Word length is 16 bits */

mcbspCfg1.mcbspXcr2 = 0x0000;   /* Transmit Control Register 2 */
                /* Single phase */

mcbspCfg1.mcbspSrgr1 = 0x0063;  /* Sample Rate Generator Register 1 */
                /* Use internal sample rate generator at 1/100 CPU clock */

mcbspCfg1.mcbspSrgr2 = 0x2013;  /* Sample Rate Generate Register 2 */
                /* CLKSM = 1, use CPU clock as SRGR reference, not external */
                /* FSGM = 0, generate frame sync when DXR --> XSR */
                /* FPER = 20, make frame longer than 16 bits */

mcbspCfg1.mcbspMcr1 = 0x0000;   /* MultiChannel Control Register 1 */
                /* No multi-channel features are used */

mcbspCfg1.mcbspMcr2 = 0x0000;   /* MultiChannel Control Register 2 */
                /* No multi-channel features are used */

mcbspCfg1.mcbspPcr = 0x1a0a;    /* Pin Control Register */
                /* RIOEN = 1, receive pins as GPIO */
                /* FSXM = 1, use internal SRGR for frame sync */
                /* CLKXM = 1, use internal SRGR for transmit clock */
                /* FSXP = 1, transmit frame sync is active low */
                /* CKXP = 1, transmit data on falling edge of CLKX */

mcbspCfg1.mcbspManualSet = 0;

/*
 *  This configuration script file configures MCBSP2 
 *  for 32-bit frames consisting of a 16-bit word for each of the
 *  left and right channels.  The AIC23 is in master mode, DSP format
 *  and generates clocks and frame syncs externally.
 *
 *  Generates MCBSP_Config and MCBSP_Open api's  
 */

/*
 * ======== mcbspCfg2 ========
 * Create a mcbsp configuration object use for the mcbsp2 talking
 * to the aic23 codec.
 */

var mcbspCfg2 = MCBSP.create("mcbspCfg2");

mcbspCfg2.mcbspManualSet = 1;

mcbspCfg2.mcbspSpcr1 = 0x0000;  /* Serial Port Control Register 1 */
                /* Digital loopback disabled */
                /* Right justified and sign extended */
                /* Clock stop disabled */
                /* Dx enabler and Abis mode both off */
                /* RINT driven by RRDY */
                /* Receiver in reset */

mcbspCfg2.mcbspSpcr2 = 0x0100;  /* Serial Port Control Register 2 */
                /* Free bit not set */
                /* XINT driven by XRDY */
                /* FSGR, SRGR and Transmitter in reset */
                /* XRST, RRST, FRST and GRST need to */
                /* be enabled in MCBSP_start() */

mcbspCfg2.mcbspRcr1 = 0x0140;   /* Receive Control Register 1 */
                /* Frame length is 2 words/frame */
                /* Word length is 16 bits */

mcbspCfg2.mcbspRcr2 = 0x0000;   /* Receive Control Register 2 */
                /* Single phase */

mcbspCfg2.mcbspXcr1 = 0x0140;   /* Transmit Control Register 1 */
                /* Frame length is 2 words/frame */
                /* Word length is 16 bits */

mcbspCfg2.mcbspXcr2 = 0x0000;   /* Transmit Control Register 2 */
                /* Single phase */

mcbspCfg2.mcbspSrgr1 = 0x0000;  /* Sample Rate Generator Register 1 */
                /* AIC23 generates clocks externally, SRGR disabled */

mcbspCfg2.mcbspSrgr2 = 0x0000;  /* Sample Rate Generate Register 2 */
                /* AIC23 generates clocks externally, SRGR disabled */

mcbspCfg2.mcbspMcr1 = 0x0000;   /* MultiChannel Control Register 1 */
                /* No multi-channel features are used */

mcbspCfg2.mcbspMcr2 = 0x0000;   /* MultiChannel Control Register 2 */
                /* No multi-channel features are used */

mcbspCfg2.mcbspPcr = 0x0003;    /* Pin Control Register */
                /* Frame syncs triggered off internal rising edge */
                /* CLKXP = 1, transmit data sampled on */
                /* rising edge of CLKX */
                /* CLKRP = 1, receive data sampled on */
                /* rising edge of CLKR */

mcbspCfg2.mcbspManualSet = 0;


/*
 * ======== McBSP1 ========
 * Open McBSP handle 1 and set it to mcbspCfg1 configuration
 */
hMCBSP1.mcbspHandleEnable = 1;

hMCBSP1.mcbspHandleName = "C55XX_CONTROLHANDLE_hMcbsp";
hMCBSP1.mcbspEnablePreInit = 1;
hMCBSP1.mcbspPreInit = prog.get("mcbspCfg1");

/*
 * ======== McBSP2 ========
 * Open McBSP handle 2 and set it to mcbspCfg2 configuration
 */
hMCBSP2.mcbspHandleEnable = 1;

hMCBSP2.mcbspHandleName = "C55XX_DMA_MCBSP_hMcbsp";
hMCBSP2.mcbspEnablePreInit = 1;
hMCBSP2.mcbspPreInit = prog.get("mcbspCfg2");