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LDmicro Forum - Program does not work |
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Program does not work (by Sean)
I used the sample program of LDmicro, shown in the picture, on my PIC16F877A. I used a 20MHz crystal as my oscillator and I also configured the bits of my microcontroller before generating the IHEX file. Upon sending the code through my microcontroller using a PICkit 3 and MPLAB X as my program, I noticed that my program does not seem to work. The LED I connected in RB4 of my microcontroller already turned ON upon receiving the program. Pressing the button I assigned on RB3 do not do anything.
What do you think went wrong on my setup or program? What should I do?
(no subject) (by Alex)
I think i it because ldmicro (if you are using 5.x.x.x v) has interna pull UP resistores enabled by default, you could fix it by changing xbutton to negate
(no subject) (by Sean)
Hi Alex!
Thank you for answering. The LED did not turn on upon programming the hex file to the microcontroller. However, the LED does not also turn on when I press the button.
(no subject) (by Sean)
Hi Alex!
The program already worked. I realized that there is something wrong with the connection in my hardware for the button. I also negated the button in LDmicro like you said and set it to HI before simulation. Thank you!
(no subject) (by Alex)
Good to hear that
(no subject) (by Tom J.)
It's useful to use one rung with just a 500ms cyclic on/off and use it to cycle a coil for a status LED.
Then at a minimum you'll know if the PIC is even running.
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