MCF54415 USB Host

[nitinkothari]

Hello Geeks,

We have a system using MCF54415 and I am intending to use the USB OTG port as Host.

We took the Tower example project for USB Host. But as the Tower board does not use OTG port for USB Host, I need to make some changes.

I made the following changes in twrmcf54418.h :

1. Commented       // #define USBCFG_USBOTG_CONNECTOR                         USBCFG_CONNECTOR_ULPI.
2. Added                    #define USBCFG_USBOTG_CONNECTOR                         USBCFG_CONNECTOR_STANDARD
3. Commented       // #define USBCFG_DEFAULT_HOST_CONTROLLER            (&_bsp_usb_host_ehci1_if)
4. Added                   #define USBCFG_DEFAULT_HOST_CONTROLLER            (&_bsp_usb_host_ehci0_if)
5. Commented       // #define USBCFG_EHCI                                                          1
6. Added                   #define USBCFG_EHCI                                                          0

I have tested it and it is not working (that is why I am here :smileyhappy: ).

So all the brainies out there, please help me fixing the issue. Please let me know what and where more changes are to be made.

Regards,

Nitro

[nitinkothari]

Hi Folks,

I tried to configure the OTG registers to act as a Host.  To achieve this, I had changed the reference to structure USBHOST to USBOTG.

But I am still not able to get any activity on the ports.

Below is the current status of the registers :

Register Name	Value
USB_OTG_ID	0xe241fa05
USB_OTG_HWGENERAL	0x000007c5
USB_OTG_HWHOST	0x10020001
HWDEVICE	0x00000009
USB_OTG_HWTXBUF	0x80040604
USB_OTG_HWRXBUF	0x00000404
GPTIMER0LD	0x00000000
GPTIMER0CTL	0x00000000
GPTIMER1LD	0x00000000
GPTIMER1CTL	0x00000000
USB_OTG_HCIVERSION	0x0100
USB_OTG_CAPLENGTH	0x40
USB_OTG_HCSPARAMS	0x00010011
USB_OTG_HCCPARAMS	0x00000006
DCIVERSION	0x0000
DCCPARAMS	0x00000184
USB_OTG_USBCMD	0x00010001
USB_OTG_USBSTS	0x00000088
USB_OTG_USBINTR	0x00000037
USB_OTG_FRINDEX	0x00003490
DEVICEADDR	0x00000000
USB_OTG_PERIODICLISTBASE	0x00000000
USB_OTG_ASYNCLISTADDR	0x00000000
EPLISTADDR	0x00000000
USB_OTG_TTCTRL	0x00000000
USB_OTG_BURSTSIZE	0x00001010
USB_OTG_TXFILLTUNING	0x00020000
ULPI_VIEWPORT	0x08000000
USB_OTG_CONFIGFLAG	0x00000001
USB_OTG_PORTSC1	0xed001c00
OTGSC	0x00203020
USB_OTG_USBMODE	0x00000007
EPSETUPSR	0x00000000
EPPRIME	0x00000000
EPFLUSH	0x00000000
EPSR	0x00000000
EPCOMPLETE	0x00000000
EPCR0	0x00800080
EPCR1	0x00000000
EPCR2	0x00000000
EPCR3	0x00000000
CCR	0x527f
RCON	0x1259
CIR	0x2802
MISCCR	0x2f7c
CDRH	0x0101
CDRL	0x0000
UOCSR	0x3810
UHCSR	0x0000
MISCCR3	0x0000
MISCCR2	0xa89f
ADCTSR	0x0000
DACTSR	0x0000
FNACR	0x00000000

Can anyone please point out what am I missing ?

Also, is it even possible to implement a Host on OTG port without ULPI interface ?

Regards,

Nitro

[nitinkothari]

Anyone out there ?

[Luis_Garabo]

Hi Nitin,

I checked with me experts. It is nos possible to recreate the scenario with our boards. Otherwise we were already able to solve the issue. Having taking a look to your board in our labs is unfortunately not par of our scope as free support for MQX. I am really sorry but it would be necessary to recommend the Level 2 support for MQX. This kind of support is included with this level. For more details you can check this link: Freescale MQX™ Support|Freescale

I am sorry for the inconvenience this may cause you.

Best Regards,

Garabo

[nitinkothari]

Hi Garabo,

Sorry but we cannot afford the Level 2 support.

So I am on my own to get this fixed.

In the pursuit, I have succeeded in getting the Host send SETUP packets.

So, as you can see, there is also SE1 condition between two packets.

Can anyone help me now ?

Thanks !

[Luis_Garabo]

Hi Nitin,

Let me ask my experts to review and suggest you solutions.

Regards,

Garabo

[nitinkothari]

Hi Garabo,

I appreciate your efforts. It seems that I have fixed the issue and the port is communicating now.

But the MFS is giving me error : MFS_NOT_A_DOS_DISK. Shall I create a new thread for this issue ?

Thanks,

Nitro

[Luis_Garabo]

Hi Nitin,

Congratulations for solving the problem!

Yes, please help us to create a new thread. If you can add source code or example project that help us to recreate the problem please add it. In advance I can tell you that a FAT16 or FAT32 formatting usually solves this issue.

Regards,

Garabo

[Luis_Garabo]

Hi Nitin,

I am afraid that USB OTG is not supported in MQX. What is the purpose of your application to use OTG? Sometimes it is confused the USB OTG with USB as device and later USB as Host. If that is your case then what you need is to use a jumper or switch that tells your device when to act as Host or Device.

Regards,
Garabo

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[nitinkothari]

Hi Garabo,

My bad. I did not explain it properly. I am using the USBOTG port as USB Host.

So, I tried with the changes mentioned above but it is not working. Please help me find out what am I missing.

Regards,

Nitro

[Kan_Li]

Hi Nitro,

Just some supplement to Garabo's comment. The MQX's USB stack doesn't support OTG opertaion, but you can use the OTG module on MCF54418 as a dule role USB port. With the following modification, you may get it work as a Host port . I just run the msd command demo on TWR-MCF54418 with TWR-SER2, you may try it as well.

Hope that helps,

Have a great day,
Kan

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[nitinkothari]

Hi Kan,

Thanks for your time.

I tried with the changes you had mentioned. But the BSP settings mentioned above are not applicable to my setup, hence it did not work. :smileysad:

In my system, there is no ULPI interfaces. I am trying to use the OTG port directly to act as a host.

Kindly see the diagram of my setup.

Please let me know what else shall I change.

Thank you again.

Nitro