Pic Based Servo Controller and Free Control Software!

[MatthewB]

Sceadwian, i think what u said maybe closest to my problem so i will try to change the offset value but i donno how....

Below is the ASM files i'm using and refered to, can you check the content and suggest me how to solve the error? i'm confused with the pwm signal calculation and the offset value setting. (anyone who know ASM please help...!)

P.S.
Right now my servo turn 45 degree to left(not center) at sync byte decimal 128, and turn to complete left at sync byte decimal 0. My servo will not move to center or right even at sync byte higher than 128(my servo can travel at 180 degree, 90 to left and 90 to right).

So i have some possible solution in mind :
1. Change the rotation resolution of my servo, maybe 180degree/128steps (since now i can only use sync byte between 0-128, not sure what happen to 128 above)
2. Change the offset value so i can put my center point at 64 sync byte, thus 0-64=left, 64-128=right, but i have to set 64 sync byte at my center...

anyone know how to check PWM signal using multimeter? i'm not sure if my pic generate correct PWM signal...

Where you able to solve this problem "wing" ?

 

[juliodsj]

My problem solved

i've solved.
My problem was pic recorder.
but i was passed in college.
my robotic arm was really cool
Thanks

 

[MatthewB]

i've solved.
My problem was pic recorder.
but i was passed in college.
my robotic arm was really cool
Thanks

Hi man, I'm also doing this for a school project. What do you mean by "my problem was pic recorder"?

Thanks matt!

 

[juliodsj]

reply

the problem was that the recorder overwrites the settings as wdt,protection

 

[MatthewB]

Ohh ok. Is the program you used in Assembly? And if yes how did you solve the problem?