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emmc and OTG question points for STM32MP157AAD3T

lingwang
Associate II

Dear  STM:

        We have the following questions to consult:

         ①Does the PA10 of STM32MP157AAD3T have a pull-up resistance inside the OTG_ID pin function?Do I need an external pull resistor when doing OTG ID function at the same time?If so, what is the resistance value of the external pull-up resistor?

        ②What is the maximum capacity supported by the emmc chip attached to the EMMC interface of STM32MP157AAD3T?

       ③When the emmc interface of STM32MP157AAD3T supports the speed of HS200, what is the power supply mode of the external EMMC chip? Our power supply method is shown in the attached picture, please help evaluate whether it can be satisfied. If not, could you recommend the design schematic diagram of EMMC supporting HS200 speed?

     ④Could you provide the reference design of STM32MP157AAD3T?

     ⑤Is there a development board for STM32MP157AAD3T?

2 REPLIES 2
FBL
ST Employee

Hello @lingwang 

About the first question, according to the reference manual, section 60.5.1 ID line detection, it is clear that it has integrated pull up resistor. It is used to detect when the ID line is left floating (device).

FBL_0-1720015563688.png

 

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Dear STM:

       Thank you for your reply. Could you please answer the remaining questions together?