SRIO switch between two C6678 dsp

That sounds like a support question for TDI not TI - http://www.idt.com/products/interface-connectivity/serial-rapidio-solutions/rapidio-switches/tsi578-rapidio-switch  there's a support link at the bottom of the page.

Best Regards,

Chad

Most likely you will have to use type 8 maintenance packets.

Regards,

Travis

You need to use maintenance packets. I did not find any official examples how to send them. There is some info scattered through forums. I managed to piece some stuff together so that I can more or less reliably read/write registers of a partner. Basically you have to fill lsu structure yourself, wait till lsu that you use is not busy and not full, write structure to the lsu, wait till transfer is finished and hopefully some data will be available at the address location you specified in the lsu structure. Some code for sending is below. Data is exchanged through data_ variable. Global address of data_ is written into lsu_transfer_config_.dspAddress.

  // code finished accessing memory, write cache back
  Srio_osalEndMemAccess(data_, kCacheLineSize);
  // wait for lsu to become available
  while (CSL_SRIO_IsLSUFull(srio_handle_, lsu_number_)
         && CSL_SRIO_IsLSUBusy(srio_handle_, lsu_number_)) {
  }
  // get transaction context
  uint8_t transaction_context = 0;
  uint8_t transaction_id = 0;
  CSL_SRIO_GetLSUContextTransaction(srio_handle_, lsu_number_,
                                    &transaction_context, &transaction_id);
  // send request
  CSL_SRIO_SetLSUTransfer(srio_handle_, lsu_number_, lsu_config);
  // wait around till the transfer is completed.
  while (CSL_SRIO_IsLSUBusy(srio_handle_, lsu_number_)) {
  }
  // wait till right transfer completed
  uint8_t completion_code = 0;
  uint8_t context_bit = 0;
  do {
    CSL_SRIO_GetLSUCompletionCode(srio_handle_, lsu_number_, transaction_id,
                                  &completion_code, &context_bit);
  } while (transaction_context != context_bit);
  // code start accessing memory, invalidate cache
  Srio_osalBeginMemAccess(data_, kCacheLineSize);
  // set error acording to completion code
  assert(completion_code < kLsuCompletionCodeCount);
  if (kCompletionCodeToErrorMap[completion_code] != kErrorNone) {
    Raise(kCompletionCodeToErrorMap[completion_code]);
  }

For RapidIO network management, diagnostic tools, and middleware you might be interested in SW provided by a company called RapidFET. Please see:

http://www.fetcorp.com/

Kind regards,

one and zero