CUSTOM USB DRIVER

[giannigrondona]

Hi

I use an LPC54680 microprocessor and I connected a QUECTEL EC21 modem through an USB port. The modem doesn't support  CDC communication class so I have to write driver by myself. 

I'd like to have some help on how to implement this driver.

Best Regards

Giovanni 

[giannigrondona]

sry but the microprocessor is LPC54608. Thank you

[Carlos_Mendoza]

Hi William,

I guess the best approach would be to use an example project for a similar USB class (same transfer type) to the one used by the modem.

Could you give us more information about your application? Do you require the MCU to be Host?

Hope it helps!

Best Regards,
Carlos Mendoza
Technical Support Engineer

[giannigrondona]

Yes MCU must be the host and modem is the device. I must use BULK tranfer. Which examples project could I use ?