TM4C129ENCPDT: USB HS is not achieving the speed I was expecting

The ULPI feature was setted:

		    ulpiSet = USBLIB_FEATURE_ULPI_HS;
		    USBDCDFeatureSet(0, USBLIB_FEATURE_USBULPI, &ulpiSet);

It looks that it is not enough,,in the post you mentioned before you recommend the user to "update the buffer management", what this mean, also from the post you mentioned now i know that this is not related with BULK_BUFFER_SIZE on the MCU side.

The BULK_BUFFER_SIZE has a size of 256 in the dev_bulk example, wich buffer have 128 bytes?

Ok, so, my questions are:

1.-Which is the varialbe that needs to be updated on the usb_dev_bulk??

2.-Where is it??

Thanks

In the windows application on the lmusbdll.cpp is necesary to replace the constant "#define MAX_DEVPATH_LENGTH 256" to a larger length???

this is the variable that needs to be updated on the windows application side??? 

The usb3320 works well with the FS configuratión, the problem is that the code gets stuck when trying to send more than 256 bytes of data, I am not asking for a code, I need just to know what extra changes must be done, only congurating the ULPI with the uC and the buffers size on the the uC and the  usb_bulk_example is not working.

The full speed mode sends the information in packets of 64 bytes, if the information have more than 64 bytes  the uC or the PC sends it in packets of 64, for example if the information have a length of 200 bytes the uC or the PC sends it in 3 groups of 64 and 1 of 8 bytes, when I activate the HS mode with the ULPI using just:

ulpiSet = USBLIB_FEATURE_ULPI_HS;		    
USBDCDFeatureSet(0, USBLIB_FEATURE_USBULPI, &ulpiSet);

The data is suppose to be sended in packets of 512 bytes, but as I told you before, when I tried to send a packet of 512 bytes(from 270 bytes this problem appears) from the PC to uC, the code gets stuck. When I send a packet of 256 bytes it arrives to the uC without any problem and without fragmented it in packets of 64 bytes (that shows me the HS mode is working), it arrives complete in a single shipment.

.

Do you have wireshark??, I can pass you the information on a .pcap file, I have capture this packets using USBPcap. In this case I first sent 256 bytes of data to the uC, then the uC sends the modified data to the PC, then I tried to send 512 bytes of data to the uC from the PC and it gets stuck. here is the pcap file:

mega.nz/

Amit i would like to ask you another favor, I would like to know if you can run with your usb3300 device interface board this code on the PC side:

https://mega.nz/#!YZchwTwT!qMnKT1veUPAanWhunhv9KmxDJ7VB7Sxnv6-f8z6KZBo

This code just returns the time that it takes to send and receive 255 bytes of data a thousand times , but What I need to know is to the diference (in time) of using FS and HS, on the uC side the only thing that must be modified is the USB lib feature with :USBLIB_FEATURE_ULPI_HS and USBLIB_FEATURE_ULPI_FS

can you give a feedback of this please??

Is the end of the year and I understand you, I will wait for your answer.

Hello Amit, were you able to get my configuration working with your USB3300 board??, by now I am working with the FS configuration using the USB3320, the speed is better than using the native FS handeler on th uC. But it is weird, as I told you, I am using the FS configuration with the USB3320, and when I run the function:

 USBDevSpeedGet(USB0_BASE);

I get : 0x02, wich means that the device is configured to work on HS, but that make no sence, I am using the FS configuration because i have configure the USBLIB_FEATURE_USBULPI with USBLIB_FEATURE_ULPI_FS, also the data is transfered in packet of 64 bytes of data.