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.

  • TI Thinks Resolved

TMDSLCDK6748: Unavailability of the SPI0_CSn pin output

Part Number: TMDSLCDK6748

From the schematics document provided by TI, the SPI0_CSn pins are connected to the LAN chip, U23. They are not available in the output headers. I require a 4 wire SPI communication for my application. Is it possible to use the SPI0 communication in 3 wire mode (ie, SIMO, SOMI, SCLK) and providing the CSn using the GPIO pins available ? What are the other possible solutions ?

with  regards
Harikrishnan R S

.Thank you .

  • The pins SPI0_sCSn_4 and SPI0_sCSn_5 are multiplexed with the UART_TXD and UART_RXD respectively. After populating the R218 and R219 resistors, will it be possible to use the 29th and 31st pins of J15 pin header as SPI0_sCSn_4 and SPI0_sCSn_5 ?

    with  regards
    Harikrishnan R S

    .Thank you .

  • In reply to Harikrishnan R S:

    You've asked the exact same question here:
    e2e.ti.com/.../653205

    Yes, you will be able to use the SPI pins on J15 header.

    Best Regards,
    Yordan

     


     Please make sure you read the forum guidelines first.

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.