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L6480 bootstrap charge pump stop after write of configuration register

Question asked by Phlip Cornelissen on Jan 23, 2017
Latest reply on Feb 2, 2017 by Phlip Cornelissen

The L6480 controller charge pump frequency stops after a write to the configuration register. A pulse on the reset pin seems to do nothing at all. Is there a proper sequence to restart the charge pump frequency? How can I fix this?

 

Controller setup:

16Mhz internal clock with no output, OSCOUT, OSCIN disabled

PWM frequency devision factor = 2

PWM frequency multiplication factor = 1

Config register value: 0x2F80

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