CCS/MSP432E401Y: Use the usb_mouse_host(simple code) to modify the problem.

julai chang

Part Number: MSP432E401Y

Tool/software: Code Composer Studio

1: using usb_mouse_host(simple code), I want to modify to support the ULPI protocol mode to be the host device.Modified the two interfaces: no success.

(1) Board_initUSB (Board_USBULPI);

(2) USBMH_init (Board_USBULPI);

2: but with usb_cdc_mouse_device(simple code), the following two interfaces can be modified to simulate the success.

(1) Board_initUSB(MSP_EXP432E401Y_USBULPI);

(2) USBCDCMOUSE_init(MSP_EXP432E401Y_USBULPI);

Note (use your own company board, add usb3340 chip to support ULPI protocol on usb interface)

over 7 years ago

0 Bob Landers over 7 years ago

TI__Expert 8510 points

Julai,
It's not clear to me what your question is. Is moving forward with the usb_cdc_mouse_device() example an acceptable solution or starting point for your project? or are you still in need of modifying the usb_mouse_host() example?
-Bob L.

0 Amit Ashara over 7 years ago

TI__Guru**** 244400 points

Hello Julai.

We have tested the Host function with MSP432E401Y and USB3300 device and it works fine. Since you are using the CC3340, please provide the schematic for the design you have so that we can first check if both board are equivalent from logical design and supply perspective.

0 julai chang over 7 years ago in reply to Amit Ashara

Intellectual 260 points

Hello Amit

1 Because I use this project（usb_cdc_mouse_device）, on my board is able to simulate the mouse, and successful operation, only modified two interface parameters.The following is the modified interface:

(1) Board_initUSB(MSP_EXP432E401Y_USBULPI);

(2) USBCDCMOUSE_init(MSP_EXP432E401Y_USBULPI);

2. Not in this project .（usb_mouse_host_MSP_EXP432E401Y_irtos）（Same as above.）

0 Amit Ashara over 7 years ago in reply to julai chang

TI__Guru**** 244400 points

Hello Julai,

OK, let me check with the RTOS project to see why the Mouse example is not working as expected. Since this will be the USB3300 HS PHY, there may be some changes but not too much in terms of overall functionaility

0 julai chang over 7 years ago in reply to Amit Ashara

Intellectual 260 points

Hello Amit
Can you add peripherals that support usb3340? I don't see any user interface in the project。
Regard，
julai

0 Amit Ashara over 7 years ago in reply to julai chang

TI__Guru**** 244400 points

Hello Julai,

I tested the example code in the SDK with for Host Mouse with external USB PHY (USB3300) and it works as expected.

In the schematic I see that you have a Cvbus less than 120 uF as specified by the datasheet. Instead a total Cvbus of 25.4 uF has been placed.

Also can you check if the USBPFLT and USB_CPEN are both high?

0 julai chang over 7 years ago in reply to Amit Ashara

Intellectual 260 points

Hello Amit
The state of two pins, USB_CPEN is low, and USBPFLT is high,
Can you provide the circuit design of usb3330?
Reagars,
julai

0 Amit Ashara over 7 years ago in reply to julai chang

TI__Guru**** 244400 points

Hello Julai,

I am using a High Speed USB reference design for device and have attached the modified schematic that I done manually to support the Host function.

BoardMod.pdf

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CCS/MSP432E401Y: Use the usb_mouse_host(simple code) to modify the problem.