Stepper Motor Driver Using L297 And L298 Ic
good day... too many question to ask... please help...
this is the data sheet i need help on
http://www.st.com/stonline/books/pdf/docs/1334.pdf
i hav few questions... please help... i am using it to control 2 phase variable magnet bipolar stepper motor
1. could anyone explain to me wad is the purpose of OSC pin?.. i know it is stated as chopper rate... anyone know how to explain this using more simple term?...i dunno wad is chopper even though i read many time the data sheet D....
wad is the value for the RC circuits, wad is this for... n wad value i can use, any?
2. wad is the control pin for??... it stated either to act on A,B,C,D or /INH1/2 faint:)
3. wad is tht /INH1 and /INH2 for?? should i use it if i just wanna control the stepper motor. please explain on this 2 pin, i am really headache read over n over again wthout any understanding on this...
4. and how about the SENSE1 and sense2 pin....wad is tht also...
5. how fast the frequency of the step clock can i input to the /clock pin of the L297.... does it depend on the stepper motor i use?...
6. for stepper motor, which part of the data sheet i should refer in order to know how fast the step/clock i can use wth the motor from my controller??
i would b grateful if anyone can help... u can answer part or even one question if u r really busy... any will help....
many many many thanks... in advance...
my warm regards,
sp
Stepper Motor Driver Using L297 And L298 Ic Test
I have use l297 and l298 IC for controlling as well as driving the motor. I have attached the circuit diagram below. I made few changes in this ckt. I connected Enable A and Enable B pin of L298 to VCC i.e. Enable pin of L297 to 5 V. After interfacing the motor I observed the signals on input and output of IC on CRO. This is mention below. My teacher asked me to design a stepper motor driver using l297,l298 and 89c51, which can control the speed and direction.I asked him what should i do first and he answered to me,'do it from scratch'. I am currently building a stepper motor circuit for a small robot. The circuit consist of the L297 and SLA7024M motor driver. I have now constructed two of these and both seems to have some issues. I intend on driving both in half step mode, but I have tried both for testing purposes.