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.