[quote user="Chris Sterzik"]Eric, I mispoke, the 16Mhz was a bench characterization and not a validation test. I am still waiting for feedback, but the 16Mhz value is valid for both 32Mhz and 16Mhz operation of MCLK where there SMCLK is derived from this clock. In Vcore = the maximum speed is 12Mhz and therefor the maximum SPI speed would be 12Mhz. Regards, Chris [/quote] So if I understand. a bench characterization is they ran some kind of test and it worked. Is that correct? Do you know what Vcore they were running? I am assuming Vcore1 so the max peripheral clock can be 24MHz and running SPI at 16 MHz would work. (at least it did once). I don't fully understand: "I am still waiting for feedback, but the 16Mhz value is valid for both 32Mhz and 16Mhz operation of MCLK where there SMCLK is derived from this clock. In Vcore = the maximum speed is 12Mhz and therefor the maximum SPI speed would be 12Mhz." It is my understanding that one needs to be at Vcore1 in order to run peripheral clocks faster than 12MHz. So I don't understand your statement about 16MHz being valid for both 32MHz and 16MHz MCLKs. I would think that depends on Vcore. If one is at Vcore1 then one can run faster than 12MHz (upto 24MHz) but I haven't seen any verification of faster. According to my calculations, at Vcore0 the fastest is something like 6MHz. And at Vcore1 20MHz. Using data from table 5-38 and 5-39 in slas826e, msp432p401r datasheet. so I'm still not sure what you are trying to tell me. And still don't understand exactly what the 16MHz means.
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