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QEI dsPIC30F6010

 
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barnal



Joined: 27 Jun 2012
Posts: 8
Location: Hungary

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QEI dsPIC30F6010
PostPosted: Wed Jun 27, 2012 5:09 am     Reply with quote
Can somebody help me?

How can I get the direction of the rotation in the ccs language from dsPIC30F6010?
And what is the qei_status() function?

sorry for my english...

thank you!!!
Ttelmah



Joined: 11 Mar 2010
Posts: 19546

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PostPosted: Wed Jun 27, 2012 8:32 am     Reply with quote
The QEI_STATUS function returns the contents of the QEICON register, 'anded' with 0x9800. So, bit 15 is 'CNTERR', bit 12 is INDX, and bit 11, is UPDN. All other bits are '0'.

So:
Code:

if (bit_test(qei_status(),11) ) {
   //Here going up

}
else {
   //Here down

}


Best Wishes
barnal



Joined: 27 Jun 2012
Posts: 8
Location: Hungary

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PostPosted: Wed Jun 27, 2012 11:16 pm     Reply with quote
thank you for your help very much, I try it soon
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