This was written for the Basic Stamp but is very close to the PIC Basic code. This is a good place for PIC users to start since the code is short and clear. The code does uses the word ENABLE as a label which needs to be changed since it is a command word in PIC Basic.
The key to driving the shiftbrites can be found in studying the PIC basic command SHIFTOUT. It will manage all of the Data, timing and variable bit length requirements. You can even embed the two mode setting bits(31-32)to keep things synced. It makes a complicated task very intuitive and hassle free.
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Hello Again I finally
Hello Again
I finally sat down and patched together 16 Shiftbrites. I tied them into a PIC chip and found some code to drive them at:
http://www.efx-tek.com/php/smf/index.php?action=printpage;topic=620.0
This was written for the Basic Stamp but is very close to the PIC Basic code. This is a good place for PIC users to start since the code is short and clear. The code does uses the word ENABLE as a label which needs to be changed since it is a command word in PIC Basic.
The key to driving the shiftbrites can be found in studying the PIC basic command SHIFTOUT. It will manage all of the Data, timing and variable bit length requirements. You can even embed the two mode setting bits(31-32)to keep things synced. It makes a complicated task very intuitive and hassle free.
Homer J