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Old 15th July 2004, 04:11 AM   (permalink)
Default Intelligent Devices RF Control System with Feedback

Is anyone have the circuit on toggling switch.
What I mean is I am using the output of the demultiplexer to on and off the device. For example, when I first send a operation coed and it will switch on the device1. After that, when I send it again(the same code), it will cause the device to be off.

Thanks...urgently

Also for PIC16F4, I discover that I can only send data 01H and 07H into the EEPROM o PIC, other data cannot?
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Old 17th July 2004, 09:59 AM   (permalink)
Default Intelligent Devices RF Control System with Feedback

Do U have any more example about storing the data into the EEPROM of PIC16F84 and extract it out from the EEPROM. It will be good if it is a simple one for understanding.

When storing the data into the EEPROM, do we need to concern about the timing? Because as I know, the timing is generated by the PIC itself right? we do not need to supply any delay right?

During the process of storing the data into EEPROM and extract it out from the EEPROM, the voltage we should supply is approx 5V right? Lower than that, the PIC won't start the process?

Can U show me some example of NESTED LOOP for DELAY which is larger than 1 second?

For temporary registers, we can assign use the SRAM 0CH,0DH,0FH,10H.....and so on right?

Is there any software that we can use to see what is the output of the program which is stored in the PIC? I mean like maybe we can use the HEX file and run it onn the cpu and cpu will show us which LED lights on?


Waiting for ur reply....thanks...verymuch!
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Old 17th July 2004, 10:41 AM   (permalink)
Default Re: Intelligent Devices RF Control System with Feedback

Quote:
Originally Posted by chinngap
Do U have any more example about storing the data into the EEPROM of PIC16F84 and extract it out from the EEPROM. It will be good if it is a simple one for understanding.

When storing the data into the EEPROM, do we need to concern about the timing? Because as I know, the timing is generated by the PIC itself right? we do not need to supply any delay right?
Check my PIC tutorials, one of the RS232 ones includes code for reading and writing the data EEPROM - basically it's a question of following the specific instructions in the datasheet.

Quote:
During the process of storing the data into EEPROM and extract it out from the EEPROM, the voltage we should supply is approx 5V right? Lower than that, the PIC won't start the process?
As far as I know the data EEPROM works across the complete voltage range specified for the chip.

Quote:
Can U show me some example of NESTED LOOP for DELAY which is larger than 1 second?
Check the PICList, there's a delay code generator there, it can generate code for pretty well any delay.

Quote:
For temporary registers, we can assign use the SRAM 0CH,0DH,0FH,10H.....and so on right?
Yes.

Quote:
Is there any software that we can use to see what is the output of the program which is stored in the PIC? I mean like maybe we can use the HEX file and run it onn the cpu and cpu will show us which LED lights on?
MPLAB includes a PIC simulator, personally I never use it, I usually just hang a LED and resistor on a pin somewhere and use that for debugging, turning it on and off at specific points in the program.
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Old 19th July 2004, 03:42 PM   (permalink)
Default Intelligent Devices RF Control System with Feedback

Do we need to take into acount the timing when storing the data and read the data from the EEPROM..?what i mean is the delay of 10ms?

I am using the PIC16F84.....

besides, can u tell me what is the concern and condition need to be taken care of when storing the data into the EEPROM of PIC? Suffering......
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Old 19th July 2004, 10:22 PM   (permalink)
Default Re: Intelligent Devices RF Control System with Feedback

Quote:
Originally Posted by chinngap
Do we need to take into acount the timing when storing the data and read the data from the EEPROM..?what i mean is the delay of 10ms?

I am using the PIC16F84.....

besides, can u tell me what is the concern and condition need to be taken care of when storing the data into the EEPROM of PIC? Suffering......
The datasheet tells you exactly how to do it, and the tutorial I suggested follows that as well - when you write you wait for the write to be completed, there's a flag to check for this - it's all explained in the datasheet!.
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