Hi There
I looked at the datasheet for this device and you must set the outputs high before you can use them as inputs.

http://www.datasheetcatalog.com/datashe ... 8574.shtml

Mike

Enabling the global interrupt might be a good idea

Hi aestech
I have just compiled for 4550 and 4450 with version 3.2 and got the same results as you. I have also checked the datasheets for both devices and they both use BIT 1 as you have noticed. I think you should let the team know at the support desk.
Mike

The ADC does not work if you switch it off !!! Why dont you look at the datasheet and find out what actually does ?
You have configured all the ADC channels as Digital inputs. Why not look at the examples to find out how it should be done.
Mike

Please find the library in the attachment and overwrite the existing one in \mikroC for AVR PRO\Uses\lte64kW\ folder.

I think the library should go into

\mikroC for AVR PRO\Uses\gt64kW\ folder

because the device in greater than 64k not less than 64k
Mike

Isnt that is what the Quick Convertor is for?
Mike

Hi Nick Thanks for coming up with more ideas, I have already tryed setting temp to a value instead of loading from the ADC but if I simulate in MPLAB it does not load this number but loads 0x0000. I am thinking of using a larged PIC with the debug option built in and seeing if this can show me where...

Hi Nick I have left justified the adc result so I get a range of 0 to 0xffc0 for a value of temp. It is loading the timer1 registers in the interrupt service routine that is giving me the problem. I tryed using MPLAB simulation but for some reason whatever value temp is the timer1 regs are loaded wi...

I have simulated this in Mikro C but since the only way to simulate the timer1 overflow interrupt is by pressing the interrupt icon everything seems OK BUT I also simulated in MPLAB and found when I animated the simulation, for some reason the timer registers were both loaded with 0x00. This seems t...

Hi There Thanks for you suggestion. The out put does toggle at approx 1Hz with OR without these line in the code. That is the problem I have the frequency does not change as the pot position changes. If I output the 2 most significent bits on GPIO 0 and GPIO 1 then these change as expected but I can...

Hi Everyone I am trying to make a voltage controlled oscillator with a 12f675 PIC using a pot connected to GPIO.2 to set the frequency of Timer 1 and GPIO.4 as the output. I am using the following code but the problem is the frequency will not change as I try to change the values of TMR1H and TMR1L....

It looks like you have forgotten to enable the global interrupt !!!

You will probably find the devices you are trying to program cannot be programmed using the spi port. It might be a good idea to look at the datasheet to find out how these devices are ment to be programmed. I think most of the devices that can be programmed using the 8051 flash programmer are AT89S...

Have you looked at the manual It shows link settings for differant PICs and tells you to move the crystal
http://www.mikroe.com/eng/downloads/get ... l_v100.pdf
Mike

Have you initialized the LCD.
I could not see before Mike