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TMS570LS3137: To Communicate two SPIs with each other

Caner Boyraz
Prodigy 135 points
Part Number: TMS570LS3137
Other Parts Discussed in Thread: HALCOGEN

Hello,

I am new using HDK, TMS570LS3137. I have been trying to communicate two SPIs with each other but I haven't accomplished yet. 

I have chosen SPI3 for transmitting the data and SPI1 as a receiver and done some setting on HalCoGen. 

For this purpose, the pins I have selected from the PINMUX are: (src: tms570ls3137 (datasheet), pp.11  ZWT BGA Package Ball-Map (337-Ball Grid Array)

SPI3 SIMO W8                         SPI1 SOMI G18

SPI3 SOMI V8                          SPI1 SIMO F19

SPI3 CLCK V9                         SPI1 CLCK F18

SPI3 CS1   V5                          SPI1 CS1   F3

(but I couldn't find many of them in PINMUX to activate)

Then, from the MIBSPI1 PORT, I chose the SPI through way for SCS[1] Pin Mode and set the rest of them as GIO through way. I have done the same thing for SPI3 as well, under MIBSPI3 Port.

For Global Config, I chose SPI3 as Master Mode (kept it as default) and unticked the Master Mode for SPI1.

I kept the other settings as default and generated the code.

I don't use another device so that I just connected SPI3's SOMI pin with SPI1's SIMO pin, SPI1's SOMI pin with SPI3's SIMO pin, CS1s together and CLKs together.

While searching this topic, I've found some codes and just copied and pasted them.

uint16 TX_Data[16] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10 };
uint16 RX_Data[16] = { 0 };

int main(void)
{
/* USER CODE BEGIN (3) */


spiInit();

_enable_IRQ();

spiDAT1_t dataconfig1_t;
dataconfig1_t.CS_HOLD = FALSE;
dataconfig1_t.WDEL = TRUE;
dataconfig1_t.DFSEL = SPI_FMT_0;
dataconfig1_t.CSNR = 0xFD;

spiSendAndGetData(spiREG1, &dataconfig1_t, 16, TX_Data, RX_Data);
spiTransmitAndReceiveData(spiREG3, &dataconfig1_t, 16, TX_Data, RX_Data);
while(1);
}

After debugging, I have seen Tx_Data as I gave, but there is nothing to see for Rx_Data. Full of zeros. I have also tried other configurations

for example, 

spiSendData and spiGetData or spiTransmitData and spiReceiveData... but I couldn't communicate them with each other anyhow.

Could you help me see the problems please? (I'm sure there are a lot of problems). I can't go forward.

Thanks in advance,

Caner

  • 0
    TI__Guru**** 199096 points

    To Use SPI module, please enable SPI rather than MibSPI in HALCOGen GUI:

    1. Enable Driver

    2. Configure SPI1 and SPI3 instead of MibSPI1 and MibSPI3

    3. Enable SPI1 (slave) interrupt:

  • 0 in reply to QJ Wang
    Prodigy 135 points

    Hi QJ Wang,

    Thanks a lot for this detailed guide. I have applied these GUI settings.

    Do I have to change something in SPI1 Port and/or SPI3 Port as well? (e.g. under SPI1 Port, unticking SCS[1]'s DIR)

    Besides the GUI configuration you showed, I also unticked SPI1's Master Mode in Global Config. 

    Are not these codes written below enough? or missing, improper? 

    /* USER CODE BEGIN (1) */

    uint16 TX_Data[16] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10 };
    uint16 RX_Data[16] = { 0 };

    ..

    ..

    ..

    int main(void)
    {
    /* USER CODE BEGIN (3) */

    spiDAT1_t dataconfig1_t;
    dataconfig1_t.CS_HOLD = FALSE;
    dataconfig1_t.WDEL = TRUE;
    dataconfig1_t.DFSEL = SPI_FMT_0;
    dataconfig1_t.CSNR = 0xFE;

    _enable_IRQ();

    spiInit();

    while(1) {

    spiTransmitAndReceiveData(spiREG3, &dataconfig1_t, 16, TX_Data, RX_Data);

    }

    }

    I have connected SPI1's and SPI3's SIMO, SOMI, CLK and CS1 pins together on board (one's SIMO to others' SOMI). What am I doing wrong? I just see 0xFFFF for RX_Data's first block.

  • 0 in reply to Caner Boyraz
    TI__Guru**** 199096 points

    Please post your project and HAL configuration (*.hcg, and *.dil).

  • 0 in reply to QJ Wang
    Prodigy 135 points

    Thanks for your concern Sir. Here they are:

    spi_lpbck_dma.rar

  • 0 in reply to Caner Boyraz
    Prodigy 135 points

    I have found where I made a mistake... from HalCoGen, I had selected TMS570LS31x --> TMDX570LS31HDK instead of TMS570LS3137ZWT. This is, of course, a huge mistake but fortunately, there is no problem now.