| ??? 05/15/00 00:43 Read: times |
#2668 - RE: Using a 89C52 to drive a stepper motor |
1. Refer to the data sheet of DS2004(National Semiconductor) it need more the 5 voltage(around 5 to 8 voltage depend on output current) to drive input pin. If possible change it to DS2003.
2. Add pulling high resistor to the output control pin of 89c52 around 4.7Kohm to get more driving current. |



