10 Minute timer kit EEPROM usage  

5/14/2011, Chuck Olson, WB9KZY
email:  wb9kzy@wb9kzy.com

Here is a brief description of the EEPROM structure of
the 10 Minute Timer PIC.  It will allow those with a
PIC programmer to change the settings without having 
to use the menus.  Yes, it probably is possible to
mess up the working of the timer chip using this
information, if that happens, do a chip reset as
mentioned in the notes section of the manual.

EEPROM byte	default(decimal)content	description of byte
-----------	-----------------------	-------------------
0		10			switch timer minute delay
1		0			switch timer second delay
2		0			up timer minute delay
3		30			up timer second delay
4		1			down timer minute delay
5		0			down timer second delay
6		20			code speed (or qrss dit length)
7		146			various timer settings:
		1	bit 7	TCK?	1=on		0=off		
		0	bit 6	RTG?	1=on		0=off		
		0	bit 5	POL?	1=output on	0=output off	
		1	bit 4	KEY?	1=keying on	0=keying off    
		0	bit 3	QRS?	1=qrss on	0=qrss off	
		0	bit 2	FST?	1=fast set menu	0=normal menu	
		1	bit 1	sleep	1=sleep off	0=sleep on	see notes section of manual
		1	bit 0	unused					
8		16			command speed
9		depends on user		start of message
	message is stored as an ASCII string of characters
	one byte = one character, message ends with a 0 byte (zero)