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iMX21 USB Host support on Wince 5

Question asked by Pierre Gal on Sep 22, 2015
Latest reply on Sep 22, 2015 by CarlosCasillas

HI iMX community,

 

We would like to use the USB Host port 2 (USBH2) on a custom iMX21 based board on the ADS based Wince 5 BSP.

We start investigation in C:\WINCE500\public\common\oak\CSP\arm\FREESCALE\MX21\DRIVERS\USB\HCD driver, but it seems to only support OTG port.

 

We notice a specific comments in the code of PowerOnPort(UCHAR port) function that say:

// NOTE: You need to implement some code for power on Host1(port 2) and Host2(port 3) »

The iMX21 datasheet does not detail the process to power on the pure host port.

 

Does anybody already experiment such feature?

Does it exists specific USB documentation for iMX21 Host port?

 

Thanks for you help.

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