EmbeddedRelated.com

AD with 12F675 fluctuations

Started by d1camero in Piclist20 years ago 21 replies

I am trying to measure 10-15volts to 0.01 volt accuracy. I am using the built-in 10bit ADC on the 12F675 with 1% tolerance ...

I am trying to measure 10-15volts to 0.01 volt accuracy. I am using the built-in 10bit ADC on the 12F675 with 1% tolerance resistor voltage divider. I find that the values fluctuate way more than expected, +/- 0.03 volts. The voltage is coming from a regulated power supply


I don't programming that 18F458 and 12F675

Started by cnt in Piclist21 years ago 7 replies

Hello, I've a problem with my programmer! I'm using a jdm programmer and ic-prog v1.05A. I can programming 16F84 and 16F877 without any...

Hello, I've a problem with my programmer! I'm using a jdm programmer and ic-prog v1.05A. I can programming 16F84 and 16F877 without any problem. I try to programming 18F458 and 12F675 but I don't programming them :( could you tell me what I am doing now? thanks for your advices sory for my english CNT TEK.


HELP!!!!!!!!!! A/D 12F675

Started by shaunundergrad in Piclist21 years ago 4 replies

hi guys, please have a look at my code. what i am trying to achieve is to take an analogue signal (2 pots,1k each, across + and -...

hi guys, please have a look at my code. what i am trying to achieve is to take an analogue signal (2 pots,1k each, across + and - rails with wire to AN0) turn the pots up and down and switch 2 led's on, 1 when above preset level and the other when below (1 at a time). i know i cou


12F675/629 question

Started by Phil in Piclist20 years ago 2 replies

I'm trying to use the MCLR pin for I/O on this device. The data sheet claims to do so you clear the MCLRE config bit. When I do ...

I'm trying to use the MCLR pin for I/O on this device. The data sheet claims to do so you clear the MCLRE config bit. When I do this the device behaves very oddly (output pins go to Vdd) and it almost looks like a reset that only half happened but not exactly. I'm using INTOSC (w


Re: help!!!!! with pic 12f675

Started by Paul James E. in Piclist21 years ago 6 replies

electromechy1, Make sure you change the ADCON register to make the AD inputs Digital I/O's instead of the analog inputs. ...

electromechy1, Make sure you change the ADCON register to make the AD inputs Digital I/O's instead of the analog inputs. Regards, Jim > hi guys, > just wtitten 1st prog as per data sheet,builds ok, problem is when i


12F675 GPIO

Started by noodles123x in Piclist20 years ago 6 replies

Hi I'm a newbie trying to program the PIC12F675 using Hi-Techs PICLite C software. I'm having trouble setting the outputs...

Hi I'm a newbie trying to program the PIC12F675 using Hi-Techs PICLite C software. I'm having trouble setting the outputs when addressing them directly. If I do the following "GPIO = 0b00000110" It will turn on two outputs But, If I


have a look at my pwm motor controller on 12f675

Started by shaunundergrad in Piclist21 years ago

hi guys, just completed my pwm motor control program, please have look and see if there is any obvious mistakes, it was written...

hi guys, just completed my pwm motor control program, please have look and see if there is any obvious mistakes, it was written on mplab uses special instruction mnemonics so probably only looks correct in mplab. it works ok but the frequency a bit low. gives reasonable out


[PIC]: 12F675 interrupt on change, a lost sunday...

Started by Vasile Surducan in Piclist21 years ago 3 replies

Hi groups ! I have spend a whole sunday trying to understand why interrupt of change are not working for me. I have played...

Hi groups ! I have spend a whole sunday trying to understand why interrupt of change are not working for me. I have played with those on PIC16F877 and works ok there. According to DS41190A datasheet, using interrupt of change means: In the main program: - en


Servo pulse using Timer1

Started by kg4pid in Piclist20 years ago 2 replies

I'm just starting a small project using a 12F675 and would like to use Timer1 to time the PWM signal going to a remote ...

I'm just starting a small project using a 12F675 and would like to use Timer1 to time the PWM signal going to a remote controlled servo. The typical 1ms to 2ms pulse with 1.5ms being centred. I've done a few small projects but I've never used Timer1 befor


Problems with wisp628 and PIC12F675

Started by holopoint.rm in Piclist20 years ago 4 replies

I tried programming (for the first time) a 12f675 with my Wisp628. The programmer can't read the target ID. IS this because I...

I tried programming (for the first time) a 12f675 with my Wisp628. The programmer can't read the target ID. IS this because I am not using the additional circuit (the 'dongle') ? http://www.voti.nl/wisp628/pics/dongle.gif