STM32F4 Discovery USB in HS mode?

Question

I want to convert the USB HID MOUSE demonstration example (from the STM32F4 Discovery board firmware package) into HIGH SPEED and be able to transfer 128Bytes in a single Xfer.

I changed the following places;

HID REPORT;
REPORT_SIZE (8)
REPORT_COUNT(128)
(report descriptor works properly under FS)

USBD_HID_CfgDesc;
wMaxPacketSize = 128

USBD_DeviceDesc;
bMaxPacketSize = 128

USBD_Init(&USB_OTG_dev,
            USB_OTG_HS_CORE_ID,
            &USR_desc,
            &USBD_HID_cb,
            &USR_cb);

HID_IN_PACKET              128
HID_OUT_PACKET             128

When i run, nothing happened on PC side. Its not even detected.

Please help me on that matter. Which settings i need to change?

Your host operating system is probably unwilling to recognize a "mouse" claiming to be a high speed device. You would also need to move the identification pullup resistor as for full speed, and be able to disable it. — Chris Stratton
But in that case, i'd expect an UNIDENTIFIED DEVICE warning, isn't that true? (I use Windows7) — pacman

vlk vlk · Accepted Answer · 2014-11-23T16:39:48

2

votes

HS mode on all STM32F4 need external PHY

STM32F4 Discovery USB in HS mode?

1 Answers