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Re: [jallist] Jallist Archive

Started by Bert Drake in Piclist19 years ago 1 reply

Does anybody have any advice on where to get boards made cheap?

Does anybody have any advice on where to get boards made cheap?


How to declare a software UART in the MPLAB compiler?

Started by Nick Alexeev in Piclist19 years ago 1 reply

Colleagues, I'm a big fan of CCS compiler, but for this project I have to use the MPLAB, becasue it support s Salvo OS....

Colleagues, I'm a big fan of CCS compiler, but for this project I have to use the MPLAB, becasue it support s Salvo OS. Here are my questions. - Is it possible to delare a Software UART in the MPLAB without a lot of coding? - Is there a good 3rd partty Software


16F628 in-circuit programming problem

Started by leon_heller in Piclist19 years ago 11 replies

This is a weird one! I've added connections for in-circuit programming to my JDM programmer, and it works OK with a 16F88 on the...

This is a weird one! I've added connections for in-circuit programming to my JDM programmer, and it works OK with a 16F88 on the target board. However, when I try to program a 16F628 on the same target board programming fails on the first location. The chip programs OK whe


Stepper motor control with PIC

Started by Roy Wheaton in Piclist19 years ago 7 replies

Has anyone developed software and/or hardware for controlling the absolute position of a stepper motor with a potentiometer? It...

Has anyone developed software and/or hardware for controlling the absolute position of a stepper motor with a potentiometer? It has to be a stepper, not a servo. I need the stepper to follow the movement of a potentiometer shaft around a 180 degree axis. I work in PicBasic


Running PIC16F628A at 3.6V

Started by Scott Lingerfelt in Piclist19 years ago 4 replies

I have a project that requires battery operation. I am using a Lithium Tadiran 3.6V 1/2AA battery for this project. I have an LED...

I have a project that requires battery operation. I am using a Lithium Tadiran 3.6V 1/2AA battery for this project. I have an LED that is tied to PORTB.5 so when the PIC starts I pull this pin high and this never happens. Can someone point me in the right direction?


multiplexing two PWM signals to one pin

Started by vfraenc1 in Piclist19 years ago 3 replies

I am using a PIC 16F876 and need to multiplex two seperate signals to one of the CCP inputs. What is the best way to do this? ...

I am using a PIC 16F876 and need to multiplex two seperate signals to one of the CCP inputs. What is the best way to do this? Any enlightenment will be appreciated. TIA Vic


Error from PICstart:Cannot Transmit

Started by sandeep c p in Piclist19 years ago 1 reply

hi i can't enable picstart programmer. i got the message from the MPLAB v6.40 under PICStart saying that "Cannot Transmit....

hi i can't enable picstart programmer. i got the message from the MPLAB v6.40 under PICStart saying that "Cannot Transmit. Please verify connection and retry the previous operation." Once its accedently enabled then after its never. i tried every thing like bau


PIC -ISA interfacing weird problem

Started by kalyanramu vemishetty in Piclist19 years ago 1 reply

Hi all, I am interfacing pic microcontroller (pic18f452) to FDC37c672 from SMSC. FDC37c672 has some UART and IrDA capabilities...

Hi all, I am interfacing pic microcontroller (pic18f452) to FDC37c672 from SMSC. FDC37c672 has some UART and IrDA capabilities which I want to explot. It has an ISA bus interface. I am able to read the registers from the FDC37C672. But for some reason I am unable t


Timer0 interrupt on 18f452

Started by Wayne Fuchs in Piclist19 years ago 2 replies

Having a strange problem with the timer0 interrupt. I'm trying to generate a square wave to send to data lines on a pair of...

Having a strange problem with the timer0 interrupt. I'm trying to generate a square wave to send to data lines on a pair of servos (from parallax). I tried to calculate the frequency using similar methods I applied on the Motorolla 68hc11/12, but the frequency didn't quite wo


Irregular second countdown on LCD

Started by Fiona Soon in Piclist19 years ago 7 replies

Hello All,   I am doing a project that involves the LCD as a count down clock. The clock would display the second and...

Hello All,   I am doing a project that involves the LCD as a count down clock. The clock would display the second and minute digit as control by a PIC16F84 PIC. The minute count down is working out fine with regards to the second decrement. But, the second decrement was dec


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