I develop a trial manufacture board of i. MX6 Quad and i. MX6 Dual-Lite.
I let you output a signal from the following pin and want to observe eye pattern to evaluate the signal quality on the board of USB I/F.
・i.MX6 Dual-Lite USB_H1_DP(E10)
・i.MX6 Dual-Lite USB_H1_DN(F10)
I refer to follows.
I set follows.
|CCM_CCGR6_bit.CG1 = 3;|
|CCM_ANALOG_PLL_USB2_bit.POWER = 1;|
|USBC_UH1_USBCMD_bit.RST = 1;|
|USBC_UH1_USBMODE_bit.CM = 3;|
|USBC_UH1_PORTSC1_bit.PTC = 4;☆|
A system is hung up when I set ”USBC_UH1_PORTSC1_bit.PTC”.
Is there the necessary setting anything else?