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tms320vc5505 ezdsp usbstick

seeni vasan
Intellectual 580 points
Other Parts Discussed in Thread: TMS320VC5505

hai

               i am using the tms320vc5505 ezdsp usbstick  in this kit i added the spi shift register when i run the test program for the spi_rom i see the activity on the bus but when i try to run the chip support library program provided with this tool i see no activity on the spi bus even though i set the pll for 12mhz .help me on how to work the spi bus using chip support library program csl_spi_example .

          with regards

            seeni

  • 0
    TI__Mastermind 30110 points

    Hi Seeni,

    Quick question - Do you have the VC5505 eZdsp or the C5505 eZdsp (red board)? Check the writing on the DSP itself. These instructions assume you have the VC5505 eZdsp and refer to the VC5505 Datasheet.

    I suspect this problem is a pin multiplexing issue. See Table 4-4 in the VC5505 Datasheet.

    Have you modified csl_general.h according to C55XCSL-LOWPOWER-2 50 00 00_Release_Notes_20110624.pdf (located in directory where CSL is installed)

    For Running the Projects on VC5505 eZdsp...

    Uncomment #define CHIP_5505 near the top of file c55xx_csl\inc\csl_general.h.

    Comment   #define VC5505_EVM (VC5505_EZDSP will now be defined)

    This will affect the section in csl_spi.c that configures the pin muxing:

    #ifdef VC5505_EZDSP
        CSL_FINS(sysRegs->EBSR, SYS_EBSR_PPMODE, CSL_SYS_EBSR_PPMODE_MODE6);
    #else
        CSL_FINS(sysRegs->EBSR, SYS_EBSR_PPMODE, CSL_SYS_EBSR_PPMODE_MODE5);
    #endif

    You should verify in Table 4-4 that you are probing the pins that are configured for SPI in PPMODE6.

    Hope this helps,
    Mark

  • 0 in reply to Mark M
    Intellectual 580 points

    hai mark mckeown

     with you kind information on the spi communication on tms320vc5505 ezdsp i was able to communicate spi shift register as well as spi eeprom connected in the tool .so  likewise help me on the i2c bus .

    with regards

    seeni