error with ERR_API_INVALID_PARAM2

lpcware — Wed, 15 Jun 2016 19:02:05 GMT

Content originally posted in LPCWare by pra18 on Tue Sep 16 07:54:34 MST 2014
Hi,

when I try to call CDC Initialisation routine by the call USBD_API->cdc-Init I am getting the error code ERR_API_INVALID_PARAM2. Before this step , the call to USBD_API->hw->Init is passing.

The manual says that error code is returned when we dont define the CDC_Read/Write callbacks. i have already registered callbacks for IN and OUT events and defined read and write calls also.

Here is the background what I am trying to do :

I am trying to adapt an example of USB CDC from lpcopen.

the example when run on the traget works fine but when I try to adapt the example into my codebase this problem occurs.

Can anyone point out what I might be missing and the problem.

thanks in advance,

Re: error with ERR_API_INVALID_PARAM2

lpcware — Wed, 15 Jun 2016 19:02:06 GMT

Content originally posted in LPCWare by pra18 on Tue Sep 23 07:58:14 MST 2014
Hi all,

i found from usbd_cdc_user.h file that the ERR_API_INVALID_PARAM2 is returned when CDC_Read , CDC_Write, and CDC_Verify are not defined. .

where and how are these CDC_Read CDC_Write and CDC_Verify defined ? is there any example code?

I searched in the hitex4350 and other example folder in lpcopen but could not find it

Thanks in advance,

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error with ERR_API_INVALID_PARAM2

Re: error with ERR_API_INVALID_PARAM2