hi,i am using 8051 microcontroller(AT89S52).i am using Vigor VTS 08A and 08B servo motors and also 9gm servos.the 9gm servos are rotating but the vigor motors are not.if the code is wrong even the 9gm servos will also not rotate.but i want the exact code or even any servo motor code in assembly language.pls help me.

i thought that amp rating is insufficient.i also used adapters of 5v with 800ma.but these are not working.i checked the motors normally but its rotating.when i connect to mcu pins just it jitters.08B motors only turn left and stops and not coming back.

in this case please help me.......