HI，Here I use mc33813 ROUT1 Pin Connect directly to the Fuel Pump in the motorcycle, I get 0x81 from the Relay 1 Driver Faults register after we open the Fuel Pump.We have test the pulse from the wire between the pin and the pump, we found the normal low volt level is 230mv, but we got several us width noise wave lower than 0mv occasionally. we wonder if it's the reason we got the fault message? how can we get rid of it?
On the other way when we send 0x05 to VRS miscellaneous parameters register from SPI,it will generate a 10ms width square square wave signal to the VRSOUT pin. and if we don't want the wave, how can we?
