EX_SISR.C - how do I look for a specific charachter?

[y]

Hi

The CSC EX_SISR.C works just fine - but how do I search the buffer for a unique charachter?



Rgds

Jesper

[dyeatman]

If you are looking for one specific character (for example one to start a packet) , the best place to check is in the ISR. Check the incoming character in the ISR to see if it is the desired start char then set a START Flag true.

Every time you enter the ISR for an incoming char you check the START flag.

IF START is false THEN you check the incoming char for (compare against) the START char ELSE IF it is true THEN you put the incoming char straight in the buffer.

If you are looking for more than one start char it may get somewhat more complicated depending on how many you need to match..

[ljbeng]

[ljbeng]

Example code above had error.... fixed now.