USB File Read Speed with MQX

[amish_M4]

We are using MQX 3.8 on a K70, internal USB Full Speed.  The K70 is set as the Host and reading a file from a USB Flash Drive using the MQX MFS File System. The file is a binary file about 2MB in size.  It takes 7-8 seconds on a few drives to load the file, but on most drives it takes 40-60 seconds. This seems really slow for a Full Speed USB connection..?

[praveenhegde]

HI Amish, I am getting the same problem you faced. It takes around 80-90 seconds for copying the .bin file from a thumb drive. But I am already using MQX 4.0. I am new to the MQX. What could be the reason.

I am using fread() for reading a file from thumb drive. and I am working on K60 tower kit.

[macl · Accepted solution]

The USB performance was improved in MQX 4.0.  Worthwhile to upgrade.