Serin EEPROM Programmer

[aratti]

SERIN doesn't need square bracket. Within bracket you will place the qualifier, not the variable.

 
serin GPIO.1, 6, [val]

 serin GPIO.1, 6, val

Al.

[dirtbiker5627]

I took the Brackets off the SERIN command and it still does not work.

[aratti]

The USB2SER is not able to program BASIC Stamp® microcontroller modules. BASIC Stamp modules
require an inverted signal. If you need to program a BASIC Stamp use the FTDI USB to Serial Adapter

The above is from USB2SER data sheet, and it seems you should use TRUE STATE. Tray to change to:

serin GPIO.1, 2, val

and

serout GPIO.2, 2, [val]

(see PBP manual pag 130)

Al.

[dirtbiker5627]

I hooked up the serial input from my pc and tested it on my oscilloscope. What I got was not a serial data string but something similar to a triangular waveform. I looked up the datasheet for the ftdi chip. I fixed it by adding a pulldown resistor to the output of the ftdi chip. Thanks for everybodys help.

val var byte

TRISIO = %00000010
CMCON0 = 7
ANSEL  = %00000000
main:
    serin GPIO.1, 6, val
    if (val = "a") then ser
goto main

ser:
Serout GPIO.2, 6, ["Got a"]
pause 10
goto main