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  1. #1
    New Member New Member matheusmb is on a distinguished road
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    SPI Driver Issue (SSC Module)

    Hello,

    I'm having difficulties while developing a SPI driver using the Synchronous Serial Controller of TC1793. The driver (master mode) works perfectly for frequencies under 5 MHz.
    If the SPI frequency is increased, an unexpected behavior happens: the CS line goes up while I'm still sending data to TB register. It seems that the TB register isn't being written fast enough (the core is running @ 270 MHz).

    Is there any SPI application example other than Dave's generated one (it isn't being helpful) or a FAE contact to support us?


    Thanks in advance.

  2. #2

    Infineon Employee
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    We need an NDA before we can send any Information. But as hint, did you check Maximum frequency in the user Manual? see product page of TC1793. On the product page there are also Supportíng appnotes.

  3. #3
    New Member New Member matheusmb is on a distinguished road
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    How can we proceed with the NDA? Yes, it way under it's maximum frequency, according to User's manual it would be capable of handling bauds up to 55 Mbps, however we're having problems at 5 Mbps.

  4. #4
    Advanced Advanced cwunder is on a distinguished road
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    Did you try using the DMA to send your data?

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