Hi Devin, Thanks for your quick response. The start of conversion of external ADCs need to be synched with ZERO match of ePWM. Moreover,we have to select the external ADCs with right timing.The ADCSELECT signals which i mentioned in the previous post need not be enabled over all the time.This is our PRIMARY CONCERN. We have already done interfacing more external ADCs using External Zone select module(XINTF) and signals XZCS0AND1 in case of TMS320F2812 processor. pls refer the below figure.I want to transfer the similar strategy to TMSF28377D. (or) you can suggest any alternate method for ADCSELECT signals. Since TMS320F28337 is a new platform to switch over,please share any application notes/ref guidelines for interfacing more external ADCs. I will go through the EMIF module in the tech ref manual and get back to you. regards, Ramesh P
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