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MCF8315A: Can't spin the motor

Mohab Ahmed
Prodigy 20 points
Part Number: MCF8315A
Other Parts Discussed in Thread: MCF8315EVM

Tool/software:

Currently

we are using MCF8315A driver to spin a BLDC blower. 

We are using the default configuration in the tuning guide 

Address Name Address Recommended
ISD_CONFIG 0x00000080 0x64738C20
REV_DRIVE_CONFIG 0x00000082 0xA8200000
MOTOR_STARTUP1 0x00000084 0x0B6807D0
MOTOR_STARTUP2 0x00000086 0xA306600C
CLOSED_LOOP1 0x00000088 0x0D3201B5
CLOSED_LOOP2 0x0000008A 0x9BAD0000
CLOSED_LOOP3 0x0000008C 0x00000000
CLOSED_LOOP4 0x0000008E 0x00000000
SPEED_PROFILES1 0x00000094 0x00000000
SPEED_PROFILES2 0x00000096 0x00000000
SPEED_PROFILES3 0x00000098 0x00000000
SPEED_PROFILES4 0x0000009A 0x00000000
SPEED_PROFILES5 0x0000009C 0x00000000
SPEED_PROFILES6 0x0000009E 0x00000000
ALGO_CTRL1 0x000000EA 0x00000000
FAULT_CONFIG1 0x00000090 0xBEC80106
FAULT_CONFIG2 0x00000092 0xF0D00888
PIN_CONFIG 0x000000A4 0x00000000
DEVICE_CONFIG1 0x000000A6 0x00000000
DEVICE_CONFIG2 0x000000A8 0x0000B000
PERI_CONFIG1 0x000000AA 0xC1C01F00
GD_CONFIG1 0x000000AC 0x9C450100
GD_CONFIG2 0x000000AE 0x80200000
INT_ALGO_1 0x000000A0 0xA433407D
INT_ALGO_2 0x000000A2 0x000001A7
MTR_PARAMS 0x000000E6 0x00000000

we tried to spin to different motors, to no avail 

 the motor used is Boreasa C60S1-01-L3 and Micronel U65ML-024KT the datasheets are attached

Radial Blower – U65ML-024KT-5 | micronel

https://www.boreasa.com/C60S1.html

It's worth noting that the driver reports no faults even when removed the motor connection, it failed to report the NO MTR fault 

  • 0
    TI__Genius 14290 points

    Hi Mohab,

    1. When trying to spin the motors does the motor move at all, is there any noise, or is there a fault reported?
      1. if the motor is not moving at all, can you check that DRVOFF and the Brake pin are both LOW?
    2. What is the Algorithm State when the motor is given a speed command? The Algorithm State is located in register 0x190.
    3. Are you using the Motor Studio GUI and a MCF8315EVM or are you using a custom board?

    Regards,

    Joshua