Introduction - If you have any usage issues, please Google them yourself
hex code for controlling a TSA5511 phase locked loop chip using a PIC16F84
Also drives a standard 16x1 LCD display.
function 16F84(A) L.C.D. notes
0V 5 1, 5
+5 volt 4, 14 2, 3
Display enable 2 6
SCL 17 needs 10k pullup to+5V
SDA 18 needs 10k pullup to+5V
4MHz crystal 16
4 MHz crystal 15
display 10 4
display data 9 14
display data 6 11
display data 8 13
display data 7 12
switch input 11 ‘Down’ switch, normally 0V
switch input 12 ‘Set’ switch, normally 0V
switch input 13 ‘Up’ switch, normally 0V
TSA5511 needs a 3.2Mhz crystal
1 x 16 character display pinout:
1 = 0 Volt
2 = 5 Volt
3 = Supply Voltage LCD Driver
4 = RS, Register Select, Low=Instruction, High=Data
5 = R/W, Read/Write
6 = Enable
7 to 14 = DB0-DB7, Data Bus software selectable 4 or 8-bit mode
15 = LED+ (Anode of LED Unit)
16 = LED- (Cathode of LED Unit)