• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 82 subscribers
  • Views 312 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

example code questions.

seo jungon
Prodigy 60 points

hello. i am new-be...dsp.

i wonder "example_280xSpi_ffdlb_int.c" code. 

function void spi_fifo_init()

"SpibRegs.SPISTS.all=0X0000;" -> I wonder if any changes occur.

i think it would not mean anything.

let me know who...

thanks...

  • 0
    Guru 192875 points

    Hi Seo,

    Which controller are you using? Here's what you're looking for:

    Regards,

    Gautam

  • 0 in reply to Gautam Iyer
    Prodigy 60 points

    thanks for your reply.

    Of course I am well aware of that information.

    I wonder why the example code written for No effect ?

    Regards...

  • 0 in reply to seo jungon
    Guru 192875 points

    I wonder why the example code written for No effect ?

    If you check the initialization, they're just trying to initialize SPISTS to default 0 values (disabling the receiver overrun flag) Also the developer wants the user to know what he's doing, even though that step is not required :)

    void spi_fifo_init()
{
// Initialize SPI FIFO registers
   SpiaRegs.SPICCR.bit.SPISWRESET=0; // Reset SPI

   SpiaRegs.SPICCR.all=0x001F;       //16-bit character, Loopback mode
   SpiaRegs.SPICTL.all=0x0017;       //Interrupt enabled, Master/Slave XMIT enabled
   SpiaRegs.SPISTS.all=0x0000;
   SpiaRegs.SPIBRR=0x0063;           // Baud rate
   SpiaRegs.SPIFFTX.all=0xC028;      // Enable FIFO's, set TX FIFO level to 8
   SpiaRegs.SPIFFRX.all=0x0028;      // Set RX FIFO level to 8
   SpiaRegs.SPIFFCT.all=0x00;
   SpiaRegs.SPIPRI.all=0x0010;

   SpiaRegs.SPICCR.bit.SPISWRESET=1;  // Enable SPI

   SpiaRegs.SPIFFTX.bit.TXFIFO=1;
   SpiaRegs.SPIFFRX.bit.RXFIFORESET=1;
}

    Regards,

    Gautam

  • 0 in reply to Gautam Iyer
    Prodigy 60 points

    very very thank you mr. lyer...

    i understand your commant.

    best regards.

    ^^