Part Number: TMS320F28377S
Tool/software: Code Composer Studio
I have one board with a TMS320F28377S dsp that runs three PWMs. I have a second board that needs to synchronize itself to the first so that three additional PWMs switch at the same time. Fig 13-7 in the tech manual makes me think I have to feed a PWM signal from either EPWM1, EPWM4, EPWM7, or EPWM10 out through EXSYNCOUT, and on the second board connect that to EXTSYNCIN.
My first problem is, I'm using the PZP package, and it appears on the datasheet that EXTSYNCOUT is only available on GPIO6, which it appears this chip does not have, is that correct? Does that mean doing this is impossible?
Second, where does ECAP1SYNCOUT go, I can't find many references to it in the datasheet? If I cannot use EXTSYNCOUT, can I generate clock pulses with ECAP1 instead to synchronize it? And is EXTSYNCIN1 mappable to any GPIO through the crossbar?
