TDA4 : How to change SPI module in TDA4 SW package v1.0

Alex Cruise

Hi.

The SW package TDA4_PSDKRA_RTOS(PSDK ver 1.0) for TDA4 is released by TI.

(PSDK ver 1.0, the Processor SDK Automotive 06.01.00 release for the J721E platform)

We was checking the basic functions in J721EXCP01EVM(Board).

I am starting to develope SPI function(based on TI-RTOS, MCUSS_DEMO) on MCU R5_0 core in new our board, which includes TDA4.

(Application location : system\PSDKRA_RTOS\mcusw\mcuss_demos\inter_core_comm\ipc_spi_master)

I have one question.

Basically, the default configuration is as MCU_MCSPI2(Master) module.

For changing the "MCU_MCSPI2(Master)" module to MCU_MCSPI0(master), I need to change the configuration for the Pin, module etc.

And then, first of all,

I change the HW Unit ID, IpcSpiMasterApp_Isr ......

from ".hwUnitId = SPI_UNIT_MCU_MCSPI2," to ".hwUnitId = SPI_UNIT_MCU_MCSPI0". for SPI communication.
from IpcSpiMasterApp_Isr = Spi_IrqUnitMcuMcspi2TxRx; to IpcSpiMasterApp_Isr = Spi_IrqUnitMcuMcspi0TxRx;

And then, I am trying to add the related PIN configuration(the related content is being in the other E2E question)

Despite above the configuration to operate MCU_MCSPI0(master) module,

MCU_MCSPI0(master) module is not operated (via Oscilloscope)

Do I need to change the additional configuration for operating the module well ?

Best regards,

Alex Jung

over 5 years ago

0 Sujith over 5 years ago

TI__Genius 12455 points

Hi Alex,

I did not get a chance to check on this today, i will check and reply.

Regards, Sujith

0 Sunil Kumar M S over 5 years ago

TI__Genius 12700 points

Hi Alex,

Default IPC SPI Master Slave Demo demonstrates the IPC communication between Main Domain and MCU Domain cores(mcu1_0 and mpu1_0) using two SPI instances(MCU MCSPI2 and MCSPI4) which are connected internally. Simulates transmission and reception of messages of data size 4 bytes.

So there is no explicit pin mux configuration done here.

You need to add below code in the function IpcSpiMasterApp_Startup to do pin mux configuration for MCU MCSPI0 instance.

-------------------- Source Code Starts -------------

    uint32 regVal = 0U;
    /* Unlock lock key registers for Partition 7: IO PAD
       configuration registers in MAIN_CTRL_MMR */
    /* write Partition 7 Lock Key 0 Register */
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1D008, 0x68EF3490);
    /* write Partition 7 Lock Key 1 Register */
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1D00C, 0xD172BC5A);
    /* Check for unlock */
    regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1D008);
    while ((regVal & 0x1) != 0x1U)
    {
       regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1D008);
    }
    /* MCSPI 0 CS0 PAD configuration */
    regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C09CU);
    regVal &= 0xFFFFFFF0U;
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C09CU, regVal);

    /* MCSPI 0 D1 PAD configuration */
    regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C098U);
    regVal &= 0xFFDFFFF0U;
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C098U, regVal);

    /* MCSPI 0 D0 PAD configuration */
    regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C094U);
    regVal &= 0xFFFFFFF0U;
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C094U, regVal);

    /* MCSPI 0 CLK PAD configuration */
    regVal = CSL_REG32_RD(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C090U);
    regVal &= 0xFFFFFFF0U;
    CSL_REG32_WR(CSL_WKUP_CTRL_MMR0_CFG0_BASE + 0x1C090U, regVal);

-------------------- Source Code End -------------

The changes you have done is correct like changing the hwUnitId,IpcSpiMasterApp_Isr but also please update APP_SPI_MCU_2_INT to CSLR_MCU_R5FSS0_CORE0_INTR_MCU_MCSPI0_INTR_SPI_0

Please increase the macro count APP_NUM_MSG_PER_ITERATION from 1000 to 100000 and comment out the portion shown below.

            /* Init transfer again to receive data from slave side */
            /* SetUp Tx and Rx Buffers */
            if (testPassed == E_OK)
            {
                testPassed = IpcSpiMasterApp_SetUpBuffer(testParams, cfgPtr);
            }

            /* Transmit data */
            if (testPassed == E_OK)
            {
                testPassed = IpcSpiMasterApp_AsyncTransmit(cfgPtr);
#if ((SPI_SCALEABILITY == SPI_LEVEL_1) || \
(SPI_SCALEABILITY == SPI_LEVEL_2))
                if (SPI_INTERRUPT_MODE == SPI_APP_DEFAULT_ASYNC_MODE)
                {
                    /* Wait for TX/RX to get over */
                    SemaphoreP_pend(IpcSpiMasterApp_RxConfirmationSemaphore,
                                     SemaphoreP_WAIT_FOREVER);
                }
#endif
            }

            if (testPassed == E_OK)
            {
                /* Check RX buffer against TX buffer */
                matching = IpcSpiMasterApp_DataCheck(testParams, cfgPtr);
                if (TRUE != matching)
                {
                    testPassed = E_NOT_OK;
                    AppUtils_Printf(APP_UTILS_PRINT_MSG_NORMAL,
                        "McSPI data mismatch error!!\n");
                }

After doing these changes, please compile and re-run the application and you should see the CLK, Data(D1) and CS via oscilloscope.

Regards,

Sunil Kumar M S

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TDA4 : How to change SPI module in TDA4 SW package v1.0