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DRV8843: DRV8843PWPR

Part Number: DRV8843

Hi,

I'm using the driver for Dual Brushed DC, the PWM that i generating is 2.5KHz and the controller is Spartan 6 (Xilinx's FPGA).

It seems that once in a while the Bridge A  stuck ( the motor doesn't move although the right PWM at pin's AIN1 & AIN2 is shown in the Scope ).

when it happens, i can move the motor of Bridge B.

I tried to release that Latch by RESET but it didn't help ( Enter the FPGA and the driver to sleep mode didn't help too).

When shutting the system down ( or programming the FPGA again) this latch released.

1. What can cause this latch?

2. How can i release it and continue without shutdown the system?