Greetings:
I see from the Starterware relaease notes that there is a 24MHz limit imposed on SPI communications. (The following is taken from http://processors.wiki.ti.com/index.php/StarterWare_02.00.01.01_Release_Notes.)
Known Issues / Limitations
Issue Identifier | Issue Description | Workaround |
SDOCM00084263 | McSPI: McSPI is not working at 48MHz, eventhough the flash and the McSPI controller supports operation at 48MHz | The frequency of operation can be kept at 24MHz for SPI Flash access |
The higher speed transfers are important to our appication. We are using the BeagleBone Black (with CCS) for the initial development platform and we have implemented SPI communications. Unfortunately, we cannot achieve the 48MHz transfer rate.
Are these limitations due to the hardware or the StarterWare libraries? Can you offer any guidance on repairing the libraries so we can have full speed SPI data transfers?
Respectfully,
David