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Reference design for USB charger detection of i.MX7D

Question asked by ko-hey on Mar 28, 2018
Latest reply on Mar 30, 2018 by igorpadykov

Hi all


I plan to use MCIMX7D5EVM10SD and use USB charger detection function.

However, I can't find a details of register setting and reference design.


1. Can i.MX7 USB_OTG1 port detect supply power of Host using USB Charger Detection ?


2. If 1 is possible, please tell us about recommended circuit for USB port connection.
In particular, please tell me about USB_OTG1_ID / USB_OTG1_REXT / USB_OTG1_CHD_B pin handling.


3. Could you please tell me the software flow (the flow which is described in Figure 66-4. USBPHY Charger Detection Software Flow in IMX6DQRM) ?