12f675 serial

Started by meri...@yahoo.com in Piclist9 years ago 1 reply

Trying to have a 12f675 send serial data to another 12f675 using SEROUT2, with disastrous results. Does anybody have sample code that is known...

Trying to have a 12f675 send serial data to another 12f675 using SEROUT2, with disastrous results. Does anybody have sample code that is known to work? I'm using PBPro. Michael ------------------------------------


WIsp628 + 12F675 -> unable to "go" or erase

Started by GUILLAUME SAUPIN in Piclist13 years ago 2 replies

Hello, I do not manage anymore to "go" or erase one of my 12F675 since I have configured the gp0 pin as an output. The chip...

Hello, I do not manage anymore to "go" or erase one of my 12F675 since I have configured the gp0 pin as an output. The chip still works, but there is no way to erase it, or read its content, ... I'm using a wisp628 (which work with another 12F675).


thanx for replies Re: 12f675. help still needed!!!!

Started by shaunundergrad in Piclist14 years ago 2 replies

hi guys, yes you're all quite right i misunderstood conditional assembly directives. now i know no wonder it would not...

hi guys, yes you're all quite right i misunderstood conditional assembly directives. now i know no wonder it would not work....full 14 hrs on it aswell. i can't output the a/d result on the pins as 12f675 only has 4 available outputs, as gpio,3 input only and gpio,0 as analog,


12f675 newbie

Started by ocusce in Piclist14 years ago 2 replies

Hello, i just have bought my first 12f675 pic and nothing seems to work to me. I work with the 16f84a dailly but this little one...

Hello, i just have bought my first 12f675 pic and nothing seems to work to me. I work with the 16f84a dailly but this little one is driving me mad. So i have a couple of questions. The internal osc is defaulted at 4 mhz? In the datasheet says that setting mclr on (during progr


12F675 doesn't erase

Started by Vanderson in Piclist14 years ago 1 reply

Hi, Somebody know, how fix the 12F675 erase problem?Some people was say about OSCCAL register erasing during the...

Hi, Somebody know, how fix the 12F675 erase problem?Some people was say about OSCCAL register erasing during the erase/program process.Is it true?is there a fix to it? Please Help me! thank's


AD with 12F675 fluctuations

Started by d1camero in Piclist14 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


12F675

Started by dr_hig in Piclist14 years ago 2 replies

Has anyone used the Picallw software to program the 12F675 8 pin flsh device. It is not in the supported list... but I wonder if...

Has anyone used the Picallw software to program the 12F675 8 pin flsh device. It is not in the supported list... but I wonder if anyone has modified the Device.ini file and been successful in programming the divice. I have emailed Bojan Dobaj, the software author, but have not


I don't programming that 18F458 and 12F675

Started by cnt in Piclist14 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.


Re: 12F675 Startup Problems

Started by starutopy in Piclist10 years ago

Hi, you may try to bypass VDD & VSS by an 100nF capacitor as close as possible to pin 1 & 8. Then don't connect directly pin 1 to 4, but put a...

Hi, you may try to bypass VDD & VSS by an 100nF capacitor as close as possible to pin 1 & 8. Then don't connect directly pin 1 to 4, but put a resistor 100K from pin 1(VDD) to pin 4 (MCLR) and a capacitor 100nF from pin 4 to pin 8 (VSS). Best regards --- In p...@yahoogroups.com, "kg4pid" wrote: > > I'm using a serial routine on a 12F675 and started by sending out the > wor


Re: CLOCK CALCULATIONS IN PIC12F675

Started by Paul James E. in Piclist14 years ago 3 replies

vaishnavi236, Well first, the 12F675 does not have hardware PWM. It does have a Timer1 and Comparators, but no PWM. I can explain the...

vaishnavi236, Well first, the 12F675 does not have hardware PWM. It does have a Timer1 and Comparators, but no PWM. I can explain the functions of the bits in T1CON, but that won't help the PWM situation, or more precisely, the lack of it. Secondly, you say you want TON = 10% and TOFF = 90%. What exactly is 'T'? Lastly, what exactly are you trying to accomplish with this program? Le...


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

Started by shaunundergrad in Piclist14 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


Re: 12F675 Startup Problems

Started by Eirik Karlsen in Piclist10 years ago 2 replies

Well...as I've said before serial coms should always be done with x-tal or maybe resonator osc. Trying to get a RC osc to run within 5 - 10% in...

Well...as I've said before serial coms should always be done with x-tal or maybe resonator osc. Trying to get a RC osc to run within 5 - 10% in accuracy and stability just isn't possible in practice...you might get it to work but when temperature changes, or a wire gets too close to chip or tracks, or whatever that can pull the osc happends you'll get tagged. kg4pid wrote: > To make it wo


Re: thank u

Started by Paul James E. in Piclist14 years ago 3 replies

First thing you should do is go to the Microchip website and search their application notes section for PWM and/or 12F675 related...

First thing you should do is go to the Microchip website and search their application notes section for PWM and/or 12F675 related notes. PWM is really not that hard once you look into it. Get the Ap Notes and then get back with me. Regards, Jim


PicBasicPro from MicroEngineering Labs

Started by Roy Wheaton in Piclist14 years ago

I have been using PBP for about one year, and have had great results. I recently called spoke with Charles at MEL because I was...

I have been using PBP for about one year, and have had great results. I recently called spoke with Charles at MEL because I was unable to shrink my code down sufficiently to fit a 12F675. As always, I received courteous and very competent support. I could not be more pleased with


HELP- PIC LED flasher

Started by asha_2108 in Piclist13 years ago 4 replies

Hi, does anyone have any source codes for flashing an RGB(tricolour) LED using a PIC 12F675 or similar PIC?? I'm doing a...

Hi, does anyone have any source codes for flashing an RGB(tricolour) LED using a PIC 12F675 or similar PIC?? I'm doing a project on it, and need some help with the coding. Have to use assembler, but even C would do. trying to program it by using different hex


12F675/629 question

Started by Phil in Piclist14 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 Piclist14 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


Re: Measure 10-15 volts ***accurately*** (was Re: AD with 12F675 fl...

Started by Wouter van Ooijen in Piclist14 years ago 3 replies

> The actual value of the resistors in the voltage divider is > unimportant. The stability of the ratio of the values is >...

> The actual value of the resistors in the voltage divider is > unimportant. The stability of the ratio of the values is > important. Most resistor networks have far better value and > temperature coefficient matching between resistors than the > actual absolute va


12F675 GPIO

Started by noodles123x in Piclist14 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


tris and option

Started by shaunundergrad in Piclist14 years ago 15 replies

hi, new to pic's, all the books on programming use tris and option however the data sheet for the 12f675 says that tris should...

hi, new to pic's, all the books on programming use tris and option however the data sheet for the 12f675 says that tris should not be used but does not give an alternative way to initilise the ports??? it does give an example and uses GPIO,x can it be used this way??? or th