Newbee question

Hi Arun,

Did you put the initializations that are in the GEL file into you code? This is described at: 

http://tiexpressdsp.com/index.php/Flashing_the_C6747#Modifying_PSP_Examples

Mariana,

Yes, I have read the instructions on that link already. what I want to know is, if the initialization code mentioned in the above link work for uart example ? 

I am also looking at thread http://e2e.ti.com/forums/p/2421/9140.aspx and it seems to me that I should be able to cut paste code from gel file. But which part ? Also it seems one of the TI engineers discourages against doing that ? So I am a bit confused.

thanks

Arun

Hi Arun,

If the functions inside the GEL file can be easily converted to C code there is no problem in doing it. What Tim means in this post is that the examples should come with initialization code and not depend on the GEL file: 

http://e2e.ti.com/members/1123652/default.aspx

As they do not come with initialization code, you can look at the GEL file and get the initializations from there.

I will need to take a look in the uart example to see if the initializations match, but you can take a look at the gel file and see if there is anything else there that fits the UART example.

Hi Arun,

I did the exact initializations that are made in the article for the audio example for the uart example and I was able to make it work from flash. The ais file attached works if burned to flash according to the article. Please try it. This way we can know if you are not making the initializations correctly or you are not burning the flash correctly.

You will need to rename the attached file from .txt to .ais as the forum will not let me post a .ais file.

Hi Mariana,

thanks, I appreciate your help. And just to be clear I am a complete newbie to this DSP and CCS.

Let me describe again what I am trying to do. (I have a Eval Module OMAP-L137)

In our design we want to boot C6747 using UART. 

 I read the document sprab04.pdf, section 8 on booting over UART using PC. To verify the boot instructions, I decided to boot one of the examples onto the EVM board using UART. The idea is that If I can get the the example image to boot using uarthost.exe then I can use the uarthost.cs file and modify it and put the image using UART on my board.So I took uartSample.out file and converted it to bin file using the AISGen tool as described in sprab04.pdf and also one of the wiki links you mentioned. I put it on to EVM board using uarthost.exe from my PC. The image is put onto the board but the uart example did not work. 

Yesterday, after your reply I decided to use audioSample.out for the same. I verified I could program C6747 using the EVM board through CCS. The line-in was being echoed to HP-out correctly. Next I tried to follow the instructions per http://tiexpressdsp.com/index.php/Flashing_the_C6747#Modifying_PSP_Example But the bin file I generated using AIS and transferred to C6747 through UART does not do the audio Echo.

Is there a problem using AISgen to generate a binary file for boot over UART. By default it tries to generate image for boot using SPI flash.

This is my audiosample_main.c. I did not modify audiosample_io.c. I would also like to learn how the function audio_echo_task is invoked from the entry point. I cannot figure it out by just looking at this code.

 

 

#include <stdio.h>

#include <std.h>

#include <log.h>

#include "ti/pspiom/psc/Psc.h"

#include "ti/pspiom/cslr/cslr_psc_C6747.h"

#include "ti/pspiom/mcasp/Mcasp.h"

#include "ti/pspiom/cslr/cslr_psc_C6747.h"

#include "ti/pspiom/platforms/codec/Aic31.h"

#include "ti/pspiom/platforms/evm6747/audio/Audio.h"

#include "ti/pspiom/platforms/evm6747/Audio_evmInit.h"

 

extern LOG_Obj trace;

 

/* ========================================================================== */

/*                           MACRO DEFINTIONS                                 */

/* ========================================================================== */

 

/*

 * Mcasp device params. To be filled in userMcaspInit function which

 * is called before driver creation

 */

Mcasp_Params audioMcaspParams;

 

/*

 * Aic31 device params. To be filled in userAic31Init function which

 * is called before driver creation

 */

Aic31_Params audioAic31Params;

 

/*

 * Audio device params. To be filled in userAudioInit function which

 * is called before driver creation

 */

 

Audio_Params audioParams;

 

 

 

#define SYS_BASE               0x01C14000

#define KICK0R                 *(unsigned int*)(SYS_BASE + 0x038)  

#define KICK1R                 *(unsigned int*)(SYS_BASE + 0x03c)  

#define PINMUX0               *(unsigned int*)(SYS_BASE + 0x120) //PINMUX0

#define PINMUX1       *(unsigned int*)(SYS_BASE + 0x124) //PINMUX1

#define PINMUX2       *(unsigned int*)(SYS_BASE + 0x128) //PINMUX2

#define PINMUX3       *(unsigned int*)(SYS_BASE + 0x12C) //PINMUX3

#define PINMUX4       *(unsigned int*)(SYS_BASE + 0x130) //PINMUX4

#define PINMUX5       *(unsigned int*)(SYS_BASE + 0x134) //PINMUX5

#define PINMUX6       *(unsigned int*)(SYS_BASE + 0x138) //PINMUX6

#define PINMUX7       *(unsigned int*)(SYS_BASE + 0x13C) //PINMUX7

#define PINMUX8       *(unsigned int*)(SYS_BASE + 0x140) //PINMUX8

#define PINMUX9       *(unsigned int*)(SYS_BASE + 0x144) //PINMUX9

#define PINMUX10       *(unsigned int*)(SYS_BASE + 0x148) //PINMUX10

#define PINMUX11       *(unsigned int*)(SYS_BASE + 0x14C) //PINMUX11

#define PINMUX12       *(unsigned int*)(SYS_BASE + 0x150) //PINMUX12

#define PINMUX13       *(unsigned int*)(SYS_BASE + 0x154) //PINMUX13

#define PINMUX14       *(unsigned int*)(SYS_BASE + 0x158) //PINMUX14

#define PINMUX15       *(unsigned int*)(SYS_BASE + 0x15C) //PINMUX15

#define PINMUX16       *(unsigned int*)(SYS_BASE + 0x160) //PINMUX16

#define PINMUX17       *(unsigned int*)(SYS_BASE + 0x164) //PINMUX17

#define PINMUX18       *(unsigned int*)(SYS_BASE + 0x168) //PINMUX18

#define PINMUX19       *(unsigned int*)(SYS_BASE + 0x16C) //PINMUX19

#define CFGCHIP2               *(unsigned int*)(SYS_BASE + 0x184) 

 

/*PSC Module Related Registers*/ 

 

#define PSC0_BASE   0x01C10000 

#define PSC1_BASE   0x01E27000

 

#define PSC0_MDCTL (PSC0_BASE+0xA00)

#define PSC0_MDSTAT (PSC0_BASE+0x800)

#define PSC0_PTCMD   *(unsigned int*) (PSC0_BASE + 0x120)

#define PSC0_PTSTAT *(unsigned int*) (PSC0_BASE + 0x128)

 

#define PSC1_MDCTL   (PSC1_BASE+0xA00)

#define PSC1_MDSTAT (PSC1_BASE+0x800)

#define PSC1_PTCMD   *(unsigned int*) (PSC1_BASE + 0x120)

 

#define PSC1_PTSTAT *(unsigned int*) (PSC1_BASE + 0x128)

/* ========================================================================== */

/*                           FUNCTION DEFINITIONS                             */

/* ========================================================================== */

/*Enable Function for PSC0*/

 

void PSC0_lPSC_enable(unsigned int PD, unsigned int LPSC_num) {

 

 *(unsigned int*) (PSC0_MDCTL+4*LPSC_num) = (*(unsigned int*) (PSC0_MDCTL+4*LPSC_num) & 0xFFFFFFE0) | 0x0003;

 PSC0_PTCMD = 0x1<<PD;

 while( (PSC0_PTSTAT & (0x1<<PD) ) !=0) ; /*Wait for power state transition to finish*/

 while( (*(unsigned int*)(PSC0_MDSTAT+4 * LPSC_num) & 0x1F) !=0x3); 

}

 

/*Enable Function for PSC1*/

 

void PSC1_lPSC_enable(unsigned int PD, unsigned int LPSC_num) {

 

 *(unsigned int*) (PSC1_MDCTL+4*LPSC_num) = (*(unsigned int*) (PSC1_MDCTL+4*LPSC_num) & 0xFFFFFFE0) | 0x0003;

 PSC1_PTCMD = 0x1<<PD;

 while( (PSC1_PTSTAT & (0x1<<PD) ) !=0) ; /*Wait for power state transition to finish*/

 while( (*(unsigned int*)(PSC1_MDSTAT+4 * LPSC_num) & 0x1F) !=0x3);

}

 

void Setup_System_Config( )

{

 

    KICK0R = 0x83e70b13;  // Kick0 register + data (unlock)

    KICK1R = 0x95a4f1e0;  // Kick1 register + data (unlock)

 

    PINMUX0  = 0x11111188;  // EMIFB, Check EMU0/RTCK

    PINMUX1  = 0x11111111;  // EMIFB

    PINMUX2  = 0x11111111;  // EMIFB

    PINMUX3  = 0x11111111;  // EMIFB

    PINMUX4  = 0x11111111;  // EMIFB

    PINMUX5  = 0x11111111;  // EMIFB

    PINMUX6  = 0x11111111;  // EMIFB

    PINMUX7  = 0x11111111;  // EMIFB, SPI0

    PINMUX8  = 0x21122111;  // UART2, McASP1, I2C0, I2C1

    PINMUX9  = 0x11011112;  // RMII CLK, McASP0, USB_DRVVBUS, UART2

    PINMUX10 = 0x22222221;  // RMII/ McASP0

    PINMUX11 = 0x11112222;  // McASP1, UART1, McASP0, MDIO (last 2 digits 0x22 for MDIO  instead of GPIO)

    PINMUX12 = 0x11111111;  // McASP0 / McASP1

    PINMUX13 = 0x22111111;  // SD / McASP1

    PINMUX14 = 0x88222222;  // SD / EMIFA

    PINMUX15 = 0x21888888;  // SD / EMIFA

    PINMUX16 = 0x11111112;  // SD / EMIFA

    PINMUX17 = 0x00100111;  // EMIFA

    PINMUX18 = 0x11111111;  // EMIFA

    PINMUX19 = 0x00000001;  // EMIFA

 

    CFGCHIP2 |= 0x00001000; // Enable USB1 clock

}

 

 void Setup_Psc_All_On( )

{

   int i;

 

   // PSC0

   PSC0_lPSC_enable(0, 0);

   PSC0_lPSC_enable(0, 1);

   PSC0_lPSC_enable(0, 2);

   PSC0_lPSC_enable(0, 3);  // EMIFA

   PSC0_lPSC_enable(0, 4);

   PSC0_lPSC_enable(0, 5);

   PSC0_lPSC_enable(0, 6);

   PSC0_lPSC_enable(0, 8);

   PSC0_lPSC_enable(0, 9);

   PSC0_lPSC_enable(0, 10);

   PSC0_lPSC_enable(0, 11);

   PSC0_lPSC_enable(0, 12);

   PSC0_lPSC_enable(0, 13);

 

// PSC1

   PSC1_lPSC_enable(0, 1);

   PSC1_lPSC_enable(0, 2);

   PSC1_lPSC_enable(0, 3);

PSC1_lPSC_enable(0, 4);

   PSC1_lPSC_enable(0, 5);

   PSC1_lPSC_enable(0, 6);  // EMIFB

   PSC1_lPSC_enable(0, 7);

   PSC1_lPSC_enable(0, 8);

   PSC1_lPSC_enable(0, 9);

   PSC1_lPSC_enable(0, 10);

   PSC1_lPSC_enable(0, 11);

   PSC1_lPSC_enable(0, 12);

   PSC1_lPSC_enable(0, 13);

   PSC1_lPSC_enable(0, 16);

   PSC1_lPSC_enable(0, 17);

   PSC1_lPSC_enable(0, 20);

   PSC1_lPSC_enable(0, 21);

   PSC1_lPSC_enable(0, 24);

   PSC1_lPSC_enable(0, 25);

   PSC1_lPSC_enable(0, 26);

   PSC1_lPSC_enable(0, 31);

}

 

/**

 *  \brief  Void main(Void)

 *

 *   Main function of the sample application. This function enables

 *   the mcasp instance in the power sleep controller and also

 *   enables the pinmux for the mcasp 1 instance.

 *

 *  \param  None

 *  \return None

 */

 

Void main(Void)

{

    LOG_printf(&trace,"\r\nAudio Sample Main\n");

 

 

    Setup_System_Config( );

    Setup_Psc_All_On( );

    /* call the function to configure the evm specific options                */

    configureAudio();

 

    return;

}

 

 

/*

 * Aic31 init function called when creating the driver.

 */

void audioUserAic31Init()

{

    Aic31_init();

    audioAic31Params = Aic31_PARAMS;

    audioAic31Params.acCtrlBusName = "/i2c0";

}

 

/*

 * Mcasp init function called when creating the driver.

 */

void audioUserMcaspInit()

{

    /* power on the Mcasp 1 instance in the PSC  */

    Psc_ModuleClkCtrl(Psc_DevId_1, CSL_PSC_MCASP1, TRUE);

 

    Mcasp_init();

    audioMcaspParams = Mcasp_PARAMS;

    audioMcaspParams.hwiNumber = 8;

 

}

 

/*

 * Audio init function called when creating the driver.

 */

void audioUserAudioInit()

{

    Audio_init();

    audioParams = Audio_PARAMS;

    audioParams.adDevType = Audio_DeviceType_McASP;

    audioParams.adDevName = "/mcasp1";

    audioParams.acNumCodecs = 1;

    audioParams.acDevName[0] = "/aic310";

}

 

/* ========================================================================== */

/*                                END OF FILE                                 */

/* ========================================================================== */

Hi Mariana,

I would like to stress again, I am trying to boot using UART. I do not have a flash on my board so that is not an option for me.

 

thanks

Arun

Hi Mariana,

 

I am now able to get the audiosample and uartsample to work on EVM OMAP-L137. By just trying various combination in AISGen tool.

thanks

Arun