i.MX 6UL max speed of loading of data through USB (SPD protocol)

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i.MX 6UL max speed of loading of data through USB (SPD protocol)

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andrewvoloshyn
Contributor I

What is the maximum speed of loading firmware through USBO2 with mfgtools on Windows? 

I tested imx_usb_loader on Linux, and average loading speed was around 3.34 (Mb/s). I expected that it would be way faster than that. I tested MfgTool2.exe on Windows as well, but in VirtualBox and it was even slower - it could be because of the virtual machine though.

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loading in mfgtool2:

<UCL>
  <CFG>
    <STATE name="BootStrap" dev="MX6UL" vid="15A2" pid="007D"/>
  </CFG>


  <LIST name="NAND Flash" desc="Choose NAND as media">

    <CMD state="BootStrap" type="load" file="firmware/core-image-base-ccimx6ul.rootfs.ubifs" address="0x82000000"
        loadSection="OTH" setSection="OTH" HasFlashHeader="FALSE" ifdev="MX6UL">Loading Rootfs UBIFS partition to RAM.</CMD>

   </LIST>

</UCL>

--------------------------------------------------------------------

loading in imx_usb_loader:

mx6_qsb
#hid/bulk,[old_header,]max packet size, dcd_addr, {ram start, ram size}(repeat valid ram areas)
hid,1024,0x910000,0x10000000,1G,0x00900000,0x40000

firmware/core-image-base-ccimx6uluvalue.rootfs.ubifs:load 0x82000000

----------------------------------------------------------------------------

Are there any ways to increase the speed?

Thank you

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igorpadykov
NXP Employee
NXP Employee

Hi Andrew

I am not aware of speed with using mfg tools,

in general i.MX6UL EVK with nxp linux may reach about 25MB/s,

however this depends on processor load. Probably using hub may increase speed.

Best regards
igor
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