Help

[cyh_fax]

I am currently doing a voiced controlled robot (as instructed by the book "PIC Robotics" by John Iovine) that requires the use of a PIC16F84 microcontroller to decode the output of the speech recognition chip HM2007.

I got the following programming code from that book.

--------------------------------------------------------------------------
'Speech recognition interface program
symbol porta = 5
symbol trisa = 133
symbol portb = 6
symbol trisb = 134
poke trisa, 255
poke trisb, 240
start:
peek portb, b0
if bit4 = 0 then trigger 'Trigger enabled, read speech recognition circuit
goto start 'Repeat
trigger:
pause 500 'Wait .5 second
peek portb, b0 'Read bcd number
if bit5 = 1 then send 'Output number
goto start 'Repeat
send:
peek porta, b0 'Read port a
if bit4 = 1 then eleven 'Is the number 11
poke portb, b0 'Output number
goto start 'Repeat
eleven:
if bit0 = 0 then ten
poke portb, 11
goto start 'Repeat
ten:
poke portb, 10
goto start 'Repeat
end
--------------------------------------------------------------------------

After I installed PicBasic Pro Compiler Demo and chose the targer processor to 16F84, I got 21 errors in the above programming code. What is wrong? Is the book wrong?

I am new to programming and microcontroller so please help! (with plain english of course as I am not very familiar with this kind of stuff^_^)

Also can I use "Programming Editor for PICAXE" to load the program into PIC16F84 chip? Or do I have to use ProBasic for PIC16F84?

[dragons_fire]

that code is only part of what you need, it would be the part to interface with the voice chip. you would still need to write the rest of the code such as variables and your outputs..

[cyh_fax]

that code is only part of what you need, it would be the part to interface with the voice chip. you would still need to write the rest of the code such as variables and your outputs..

But so far is there any problem in the code? It won't compile though, keeping saying there is syntax error, for example in line 1 symbol....

Also, PIC16F84 just detect whether the input BCD signal from Hm2007 is 55,66,77 error code, if not, it will pass the input to output unchanged and let the 74HC154 to do the decoding. This is what the book says. Please help, I am so lost now.

[skimask]

But so far is there any problem in the code? It won't compile though, keeping saying there is syntax error, for example in line 1 symbol....

Also, PIC16F84 just detect whether the input BCD signal from Hm2007 is 55,66,77 error code, if not, it will pass the input to output unchanged and let the 74HC154 to do the decoding. This is what the book says. Please help, I am so lost now.

Check the manual about your paths and how you should be installing the software.

[cyh_fax]

I have converted the original code into PicBasic Pro format and also extended the code to accept 0-15 output. [The original one only accept from 0-11] Can anyone check the code for me? Is it correct?

'Speech Recognition Interface - PIC16F84A
'PicBasic Pro
'Version 1.3

trisa = 255
trisb = 240
p var byte

start:
p = portb
if p.4 = 1 then goto start
pause 500
p = portb
if p.5 = 1 then send
goto start

send:
p = porta
if p.4 = 1 then odd
portb = p
goto start

odd:
if p.0 = 0 then even
if (p.1 = 0) and (p.2 = 0) and (p.3 = 0) then portb = 11
if (p.1 = 1) and (p.2 = 0) then portb = 13
if (p.1 = 0) and (p.2 = 1) then portb = 15
if (p.1 = 1) and (p.2 = 1) then portb = 15 '17 originally.
if p.3 = 1 then portb = 15 '19 originally.
goto start

even:
if (p.1 = 0) and (p.2 = 0) and (p.3 = 0) then portb = 10
if (p.1 = 1) and (p.2 = 0) then portb = 12
if (p.1 = 0) and (p.2 = 1) then portb = 14
if (p.1 = 1) and (p.2 = 1) then portb = 15 '16 originally.
if p.3 = 1 then portb = 15 '18 originally.
goto start

end