OMAP-L138: USB CDC enumeration issue

Antony George

Part Number: OMAP-L138

i am trying to integrate usb (CDC) in my code using the library from starterware, but its not working, when i checked the CFGCHIP2 register its value is 0x000109F2, USBPHYCLKGD is 0, normally it has to be 1, i think that is the problem, what changes should i make inorder to make that bit 1 ?? why is the clock not detecting ?

over 8 years ago

0 Cvetolin Shulev-XID over 8 years ago

TI__Guru 65405 points

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BR
Tsvetolin Shulev

0 Antony George over 8 years ago in reply to Cvetolin Shulev-XID

Prodigy 170 points

hi
i want to know which all interrupts are to be enabled for usb (CDC) enumeration. i need to integrate it in boot loader.

Regards
Antony

0 Sahin Okur over 8 years ago in reply to Antony George

TI__Mastermind 27355 points

Hi Antony,

Have you already referred to our USB example in StarterWare? It can be found here: \examples\lcdkOMAPL138\usb_dev_serial

Additionally, in case you have not already seen it, we have a section in the Starterware USB wiki that explains the steps for CDC device enumeration found here: processors.wiki.ti.com/.../StarterWare_USB

Please take a look at these if you have not done so already, and let us know if you still need more guidance.

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OMAP-L138: USB CDC enumeration issue