RTOS/DRA72XEVM: DRA7X EVM UART SYSBIOS CSL code Integration error

Ganesh H

Expert 1450 points

Part Number: DRA72XEVM
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Hi,

I created a SYSBIOS sample code and trying to integrate UART CSL. Added CSL code from CSL example uart_test.

My code is given below

/*
 *  ======== main.c ========
 */

#include <xdc/std.h>

#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>

#include <ti/sysbios/BIOS.h>

#include <ti/sysbios/knl/Task.h>

#include <stdint.h>
#include <stdio.h>
#include <ti/csl/hw_types.h>
#include <ti/csl/soc.h>
#include <ti/csl/example/utils/uart_console/inc/uartConfig.h>

/* ========================================================================== */
/*                                 Macros                                     */
/* ========================================================================== */

/* Commented define TESTCASE_ID to test with default settings of
 * BAUD_RATE    = 115200,
 * WORD_LENGTH  = 8Bits,
 * STOP_BIT     = 1,
 * PARITY       = None.
 * Uncomment below define and set to appropriate test case number to test
 * specific configuration.
 */

/*
#define TESTCASE_ID     UART_19
*/

#if (TESTCASE_ID == UART_1)
#define BAUD_RATE       BAUD_RATE_9600
#endif

#if (TESTCASE_ID == UART_2)
#define BAUD_RATE       BAUD_RATE_14400
#endif

#if (TESTCASE_ID == UART_3)
#define BAUD_RATE       BAUD_RATE_19200
#endif

#if (TESTCASE_ID == UART_4)
#define BAUD_RATE       BAUD_RATE_38400
#endif

#if (TESTCASE_ID == UART_5)
#define BAUD_RATE       BAUD_RATE_57600
#endif

#if (TESTCASE_ID == UART_6)
#define BAUD_RATE       BAUD_RATE_115200
#endif

#if (TESTCASE_ID == UART_7)
#define BAUD_RATE       BAUD_RATE_230400
#endif

#if (TESTCASE_ID == UART_8)
#define BAUD_RATE       BAUD_RATE_460800
#define UART_MODE       UART_13x_MODE
#endif

#if (TESTCASE_ID == UART_9)
#define BAUD_RATE       BAUD_RATE_921600
#define UART_MODE       UART_13x_MODE
#endif

#if (TESTCASE_ID == UART_10)
#define WORD_LENGTH     UART_WORD_LENGTH_5
#endif

#if (TESTCASE_ID == UART_11)
#define WORD_LENGTH     UART_WORD_LENGTH_6
#endif

#if (TESTCASE_ID == UART_12)
#define WORD_LENGTH     UART_WORD_LENGTH_7
#endif

#if (TESTCASE_ID == UART_13)
#define WORD_LENGTH     UART_WORD_LENGTH_8
#endif

#if (TESTCASE_ID == UART_14)
#define STOP_BIT        UART_STOP_BIT_1
#endif

#if (TESTCASE_ID == UART_15)
#define STOP_BIT        UART_STOP_BIT_1_5_2
#define WORD_LENGTH     UART_WORD_LENGTH_5
#endif

#if (TESTCASE_ID == UART_16)
#define STOP_BIT        UART_STOP_BIT_1_5_2
#endif

#if (TESTCASE_ID == UART_17)
#define PARITY      UART_NO_PARITY
#endif

#if (TESTCASE_ID == UART_18)
#define PARITY      UART_PARITY_ODD
#endif

#if (TESTCASE_ID == UART_19)
#define PARITY      UART_PARTY_EVEN
#endif

#ifndef BAUD_RATE
#define BAUD_RATE       BAUD_RATE_115200
#endif

#ifndef WORD_LENGTH
#define WORD_LENGTH     UART_WORD_LENGTH_8
#endif

#ifndef STOP_BIT
#define STOP_BIT        UART_STOP_BIT_1
#endif

#ifndef PARITY
#define PARITY          UART_NO_PARITY
#endif

#ifndef UART_MODE
#define UART_MODE       UART_16x_MODE
#endif

#define UART_INST_NUM                    (1U)
uint32_t uartBaseAddr;
/* ========================================================================== */
/*                            Global Variables                                */
/* ========================================================================== */
/* None */

void padConfig_prcmEnable()
{
#if defined (SOC_AM574x) || defined (SOC_AM572x) || defined (SOC_AM571x)
    /*Pad configurations */
    Board_initCfg boardCfg;
    boardCfg = BOARD_INIT_UNLOCK_MMR | BOARD_INIT_UART_STDIO |
               BOARD_INIT_MODULE_CLOCK | BOARD_INIT_PINMUX_CONFIG;
    Board_init(boardCfg);
#endif
#if defined (SOC_TDA2XX) || defined (SOC_TDA2PX) || defined (SOC_TDA2EX) || defined (SOC_DRA72x) || defined (SOC_DRA75x)
    /*Pad configurations */
    HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_UART1_RXD,0x00040000);
    HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_UART1_TXD,0x00000000);
    /* Set the UART Parameters */
    UARTConfigInit(uartBaseAddr, BAUD_RATE, WORD_LENGTH, STOP_BIT, PARITY,
                    UART_MODE);
#endif
#if defined (SOC_TDA3XX) || defined (SOC_DRA78x)
    /*Pad configurations */
    HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_IO_SPI1_SCLK,0x00040001);
    HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_IO_SPI1_CS0,0x00000001);
    /* Set the UART Parameters */
    UARTConfigInit(uartBaseAddr, BAUD_RATE, WORD_LENGTH, STOP_BIT, PARITY,
                    UART_MODE);
#endif
}


/*
 *  ======== taskFxn ========
 */
Void taskFxn(UArg a0, UArg a1)
{
    System_printf("enter taskFxn()\n");

    Task_sleep(10);

    System_printf("exit taskFxn()\n");

    System_flush(); /* force SysMin output to console */


}

/*
 *  ======== main ========
 */
Int main()
{ 
    Task_Handle task;
    Error_Block eb;

    System_printf("enter main()\n");

    char     dataBuffer[100];
    uartBaseAddr = SOC_UART1_BASE;

    #if defined (SOC_TDA3XX) || defined (SOC_DRA78x)
        uartBaseAddr = SOC_UART3_BASE;
    #endif
    #if (defined (SOC_AM574x) || defined (SOC_AM572x)) || (defined (SOC_AM571x))
        uartBaseAddr = SOC_UART3_BASE;
    #endif
    /*Pad configuration and PRCM enable*/
    padConfig_prcmEnable();
/* UART receive and transmit operation */
    UARTConfigPuts(uartBaseAddr, "\nUART Test", -1);
    Error_init(&eb);
    task = Task_create(taskFxn, NULL, &eb);
    if (task == NULL) {
        System_printf("Task_create() failed!\n");
        BIOS_exit(0);
    }

    BIOS_start();    /* does not return */
    return(0);
}

My project configuration is given below

var Defaults = xdc.useModule('xdc.runtime.Defaults');
var Diags = xdc.useModule('xdc.runtime.Diags');
var Error = xdc.useModule('xdc.runtime.Error');
var Log = xdc.useModule('xdc.runtime.Log');
var LoggerBuf = xdc.useModule('xdc.runtime.LoggerBuf');
var Main = xdc.useModule('xdc.runtime.Main');
var Memory = xdc.useModule('xdc.runtime.Memory')
var SysMin = xdc.useModule('xdc.runtime.SysMin');
var System = xdc.useModule('xdc.runtime.System');
var Text = xdc.useModule('xdc.runtime.Text');

var BIOS = xdc.useModule('ti.sysbios.BIOS');
var Clock = xdc.useModule('ti.sysbios.knl.Clock');
var Swi = xdc.useModule('ti.sysbios.knl.Swi');
var Task = xdc.useModule('ti.sysbios.knl.Task');
var Semaphore = xdc.useModule('ti.sysbios.knl.Semaphore');
var Hwi = xdc.useModule('ti.sysbios.hal.Hwi');

/*
 * Uncomment this line to globally disable Asserts.
 * All modules inherit the default from the 'Defaults' module.  You
 * can override these defaults on a per-module basis using Module.common$. 
 * Disabling Asserts will save code space and improve runtime performance.
Defaults.common$.diags_ASSERT = Diags.ALWAYS_OFF;
 */

/*
 * Uncomment this line to keep module names from being loaded on the target.
 * The module name strings are placed in the .const section. Setting this
 * parameter to false will save space in the .const section.  Error and
 * Assert messages will contain an "unknown module" prefix instead
 * of the actual module name.
Defaults.common$.namedModule = false;
 */

/*
 * Minimize exit handler array in System.  The System module includes
 * an array of functions that are registered with System_atexit() to be
 * called by System_exit().
 */
System.maxAtexitHandlers = 4;       

/* 
 * Uncomment this line to disable the Error print function.  
 * We lose error information when this is disabled since the errors are
 * not printed.  Disabling the raiseHook will save some code space if
 * your app is not using System_printf() since the Error_print() function
 * calls System_printf().
Error.raiseHook = null;
 */

/* 
 * Uncomment this line to keep Error, Assert, and Log strings from being
 * loaded on the target.  These strings are placed in the .const section.
 * Setting this parameter to false will save space in the .const section.
 * Error, Assert and Log message will print raw ids and args instead of
 * a formatted message.
Text.isLoaded = false;
 */

/*
 * Uncomment this line to disable the output of characters by SysMin
 * when the program exits.  SysMin writes characters to a circular buffer.
 * This buffer can be viewed using the SysMin Output view in ROV.
SysMin.flushAtExit = false;
 */

/*
 * The BIOS module will create the default heap for the system.
 * Specify the size of this default heap.
 */
BIOS.heapSize = 0x1000;

/*
 * Build a custom SYS/BIOS library from sources.
 */
BIOS.libType = BIOS.LibType_Custom;

/* System stack size (used by ISRs and Swis) */
Program.stack = 0x2000;

/* Circular buffer size for System_printf() */
SysMin.bufSize = 0x200;

/* 
 * Create and install logger for the whole system
 */
var loggerBufParams = new LoggerBuf.Params();
loggerBufParams.numEntries = 16;
var logger0 = LoggerBuf.create(loggerBufParams);
Defaults.common$.logger = logger0;
Main.common$.diags_INFO = Diags.ALWAYS_ON;

System.SupportProxy = SysMin;

While trying to build i am getting identifier "SOC_UART1_BASE" is undefined error. The soc.h is already included do i need to add anything specifically?

For Jacinto J6 EVM does SOC_UART1_BASE prints messages to EVM's debug UART Terminal

over 7 years ago

0 Rishabh Garg over 7 years ago

TI__Guru 55685 points

Hi Ganesh,

We have UART already integrated with Vision SDK.
We also have a full UART driver.
Can you provide more details on what exactly do you want.

Regards,
Rishabh

0 Ganesh H over 7 years ago in reply to Rishabh Garg

Expert 1450 points

Hi Rishabh,

I am using PSDK Linux on J6 EVM board which runs linux on A15 core, i am trying to flash an independent application on other cores (ipu1,ipu2,dsp1 or dsp2) which access board peripherals and sends ipc communication with A15. IPC communication samples for Ipu1 to A15 is available and which i tested and works fine, peripheral access from cores other than A15 is what i want to implement.
If i am flashing Ipu1 UART example using df-util and i removed sd card will i get messages on debug UART of EVM ,or whether bringing up of A15 core is required for starting the other cores (ipu1,ipu2,dsp1 or dsp2).

0 Rishabh Garg over 7 years ago in reply to Ganesh H

TI__Guru 55685 points

Hi Ganesh,

You need to bring up all cores enabled in the system for IPC attach to go through. Then only the application will start sending data to UART.
Hence in the above use case A15 is needed.

Regards,
Rishabh

0 Ganesh H over 7 years ago in reply to Rishabh Garg

Expert 1450 points

Hi Rishabh,

I have one more question what if there is no IPC communication between A15 and M4 and there is no sd card with Linux and Uboot. The M4 core is flashed with a program to check one gpio and print status on UART, So if i power up in this condition will the M4 core work.

0 Rishabh Garg over 7 years ago in reply to Ganesh H

TI__Guru 55685 points

Hi,

To make only M4 work you should disable it in the cfg.mk of Vision SDK. In case of linux configuration you need both A15 and M4 at minimum.

Regards,
Rishabh

0 Ganesh H over 7 years ago in reply to Rishabh Garg

Expert 1450 points

Hi Rishabh,

So it is not possible to make just the M4 core working using PSDK RTOS in J6 EVM without initing the A15 core. Does SPL or Uboot provides minimal init to A15 core so that i don't need to load Linux Kernel Image?

0 Rishabh Garg over 7 years ago in reply to Ganesh H

TI__Guru 55685 points

Hi Ganesh,

You are mixing PSDK RTOS and PSDK Linux. PSDK RTOS can work with only IPU. PSDK Linux needs A15.
Hope this clarifies.

Regards,
Rishabh

0 Ganesh H over 7 years ago in reply to Rishabh Garg

Expert 1450 points

Hi Rishabh,

Both PSDK RTOS and PSDK Linux can work on the same board right? ie PSDK RTOS binary on IPU and PSDK Linux on A15.

My Question is if i am trying to flash PSDK RTOS binary to IPU using df-util and there is nothing provided for A15(Linux), after reset will the M4 core work fine or is it mandatory for A15 to bootup.

0 Rishabh Garg over 7 years ago in reply to Ganesh H

TI__Guru 55685 points

Hi Ganesh,

PSDK RTOS means A15 is running BIOS, PSDK Linux implies A15 is running linux. In both the cases IPU runs RTOS binaries only.
Can you start a new thread on df-util as the original question was about UART CSL integration.

Regards,
Rishabh

0 Ganesh H over 7 years ago in reply to Rishabh Garg

Expert 1450 points

Hi Rishabh,

Do we have a sysbios UART sample on psdk RTOS folder?

0 Rishabh Garg over 7 years ago in reply to Ganesh H

TI__Guru 55685 points

Hi Ganesh,

The example is here: PROCESSOR_SDK_VISION_03_05_00_00\ti_components\drivers\pdk_01_10_01_06\packages\ti\drv\bsp_lld\uart\examples\uart_echo

Regards,
Rishabh

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RTOS/DRA72XEVM: DRA7X EVM UART SYSBIOS CSL code Integration error