Why does L6480H driver register value reset to default

cliang · ‎2015-04-22

Posted on April 22, 2015 at 19:07

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cliang · ‎2015-04-23

Posted on April 23, 2015 at 15:06

the chip wont reset if I send GetParam or GetStatus command. As long as the command is motion command, it will reset. I call it reset because register value suddenly reset to default value. I know reset the chip by pull Reset pin low or power cycle. However, it did not get either power cycle or reset.

Please help.

Enrico Poli · ‎2015-04-27

Posted on April 27, 2015 at 10:02

Hi,

The device could be reset by a drop of the supply voltage. Maybe when you try to turn on the motor the power supply does not keep the voltage stable.

Please, check all the supply pins of the IC (VREG, VCC and VSREG)

Regards

Enrico

cliang · ‎2015-04-27

Posted on April 27, 2015 at 15:20

Thanks. found the issue.