topic Re: In USB USBRST bit is not getting set. in Kinetis Microcontrollers

In USB USBRST bit is not getting set.

shabana — Wed, 24 Sep 2014 07:55:23 GMT

Hi,

The following are the things that I have done.

1. Im using the Freescale USB stack v4.1.1.

2. The example project that Im refering is msd_msf_generic -> K40.

3. Im converting the K40 project to KL46.

4. In not using the same workspace to create the project instead I have copied the files to some other workspace.

The problem is if I connect the USB memory stick the control comes to the ISR but the USBRST bit is not set.

The register looks like the attached picture.

can any one help me!!!!!!!

Regards,

Shabana

Re: In USB USBRST bit is not getting set.

Kan_Li — Wed, 24 Sep 2014 10:01:31 GMT

Hi Shabana m,

As I know, there is some code issue in the demo of msd_mfs_generic host from usb stack ver 4.1.1, please kindly refer to [USB stack ver 4.1.1] a code issue in msd_mfs_generic host demo for more details.

Hope that helps,

Have a great day,
Kan

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Re: In USB USBRST bit is not getting set.

shabana — Wed, 24 Sep 2014 11:12:48 GMT

Hi Kan,

The code has been changed as they have said in the link even though the problem is not solved.

Regards,

shabana

Re: In USB USBRST bit is not getting set.

shabana — Thu, 25 Sep 2014 10:27:28 GMT

Hi,

Actually now Im trying using processor expert. In same USB atack there are some example project for MSD using processor expert. In that I have changed the code created in KL25 for KL46.

In UART Im getting following error message..

Waiting for USB mass storage to be attached...

Mass Storage Device Attached

================ START OF A NEW SESSION ================

Testing: GET MAX LUN Command..........................OK

Testing: TEST UNIT READY Command...Unsupported(bStatus=0xfffffff9)