Setting up a 12F683 to run at 20 Mhz

[johnnylynx]

_HS_OSC
Needs to be used in the configs.
Then
DEFINE OSC 20
needs to be near the top of your code.

Have you read this thread?
http://www.picbasic.co.uk/forum/showthread.php?t=543

OK, I tried the above but didn't work.

Trial 1:
- using the default setting of 4 mhz, the LED's flashed at rate 'X'

Trial 2:
- using the osccon = %01110000 (8 mhz)
- The LED's flashed at a rate of '2X'

Trial 3:
- Using the

_hs_osc
Define OSC 20

- the LED flashing rate went back to 'X'

It doesn't seem that the 20 Mhz is working??? Should it not flash at '5X' rate?

Here is what the top end of the code looks like now:

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'*************************************
'Configuration Bits

_hs_osc

define osc 20

'osccon = %01001000 ' Osc set to 1 MHz
'osccon = %01100000 ' Osc set to 4 MHz
'osccon = %01110000 ' Osc set to 8 MHz


trisio = %00011000 '
' GPIO.5 output
' GPIO.4 input
' GPIO.3 input
' GPIO.2 output
' GPIO.1 output
' GPIO.0 output

wpu = %00010000
' GPIO.5 Weak pullup disabled
' GPIO.4 Weak pullup enabled
' GPIO.3 Weak pullup disabled
' GPIO.2 Weak pullup disabled
' GPIO.1 Weak pullup disabled
' GPIO.0 Weak pullup disabled

CMCON0 = 7 ' Analog comparators off
ANSEL = 0 ' Analog select set to digital, pg 69 data
ADCON0 = 0 ' A/D turned OFF, pg 68 of data


'***************************************
'Define Variables

pausetime var word
Out0 var gpio.0
Out1 var gpio.1
Out2 var gpio.2
B0 var byte

'***************************************
'Set Variables

pausetime = 100
B0 = 0
low 0
low 1
low 2
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