Hi team,
I just want to confirm that the default configuration of MCF8316 speed control is analog mode. So if the customer plan use this mode, they don't need configure this register, right? And do they need to enable speed control? And I check the datasheet about the Speed/Wake PIN, I didn't find anything about this function. I am not sure that if there is communication, do we need to control the voltage level about this PIN?
Hi Hale,
I just want to confirm that the default configuration of MCF8316 speed control is analog mode
Correct, by default the MCF8316A is set to work in analog mode. This can be checked by reading bits 2-1 of register PIN_CONFIG and bit 31 of register ALGO_CTRL1, if these bits are 0 then the device is in analog mode.
do they need to enable speed control?
So long as the Break and DRVOFF pins are low, the bits in the two registers stated previously are 0, and the device is not in sleep mode or standby mode (see Table 6-7 of the datasheet) then when a voltage is applied to the SPEED/WAKE pin the motor should be able to spin, unless a fault occurs.
we need to control the voltage level about this PIN
In analog mode the voltage at the SPEED/WAKE pin will control the speed of the motor:
Regards,
Joshua
