How to download the MPC6515 firmware:
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1)  Copy the two files 65154120.FMW and 65154001.HDW to the root of a USB
Mass Storage Device. The Device must be formatted as FAT16. It's bettter 
to remove any other files from the root of the Storage Device.
 
2)  Power on, then the indicator D1 in the mianboard of MPC6515 will flash 
two times instantly.

3)  Insert the USB Mass Storage Device into MPC6515.

4)  The indicator D1 will light for 2 to 10 seconds depend on the size 
of the firmware files. It means downloading. Don't remove the USB Mass 
Storage Device.

5)  Once the indicator D1 flash frequently, the downloading is end.

6)  Remove the USB Mass Storage Device, and the MPC6515 will load the new 
firmaware. Repeat the steps if the MPC6515 can not work after downloading. 
If still abnormity, please contact with your provider.

Notice:

1)  This firmware can only be used to MPC6515 controller. 

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Step Servo (ChengDu) Co., Ltd.