[ECOS] Interrupts and Serial Ports

[Steve Knowlton]

OK. That's what I wanted to know. Thanks for the information.

Steve

Andrew Lunn wrote:

>On Mon, Nov 08, 2004 at 03:39:16PM -0500, Steve Knowlton wrote:
>  
>
>>Andrew,
>>
>>Thanks for the response. I'm pretty sure I am using the full driver and 
>>not the one for diagnostic output. I have the ports set up as /dev/ser0 
>>and /dev/ser1 in the config
>>tool. I just need to know the correct way to read data from the port.
>>
>>I have set up a handle to the port using the cyg_io_lookup function and 
>>configuring
>>it to 9600 baud ( plus the other parameters such as stop bits etc ) and 
>>set up
>>for non blocking reads. I am looping through the cyg_io_read function at 
>>a rapid
>>rate but am still not reading anything. I know that polling is not the 
>>best way to do
>>this but I don't know how to set up an interrupt driven scheme since the 
>>driver is
>>already using the interrupt vector. Is there a way to hook onto this 
>>interrupt vector
>>so that I can use this interrupt to signal the arrival of data at the port?
>>    
>>
>
>The serial driver will be doing all the interrupt handling for you. So
>just do a blocking read and you will be unblocked when the data
>arrives.
>
>        Andrew
>
>
>  
>


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