Hi,
I've successfully set up code for transferring HID reports on one interrupt IN endpoint. But when I try to transfer additional data on an additional endpoint I don't see any bytes being transferred on the additional endpoint. Is this a problem with USB_postTransaction from CSL, or with my setup or even with the CSL for USB? Could anyone help me please?
I analyse USB using USBlyzer. Enumeration is successful and the USB status I see in USBlyzer is resumed here:
| Connection Status | Device connected |
| Current Configuration | 1 |
| Speed | Full |
| Device Address | 2 |
| Number Of Open Pipes | 4 |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 12h | |
| 1 | bDescriptorType | 1 | 01h | Device |
| 2 | bcdUSB | 2 | 0200h | USB Spec 2.0 |
| 4 | bDeviceClass | 1 | 00h | Class info in Ifc Descriptors |
| 5 | bDeviceSubClass | 1 | 00h | |
| 6 | bDeviceProtocol | 1 | 00h | |
| 7 | bMaxPacketSize0 | 1 | 40h | 64 bytes |
| 8 | idVendor | 2 | 0451h | Texas Instruments, Inc. |
| 10 | idProduct | 2 | 9000h | |
| 12 | bcdDevice | 2 | 0110h | 1.10 |
| 14 | iManufacturer | 1 | 01h | "" |
| 15 | iProduct | 1 | 02h | "" |
| 16 | iSerialNumber | 1 | 00h | |
| 17 | bNumConfigurations | 1 | 01h |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 09h | |
| 1 | bDescriptorType | 1 | 02h | Configuration |
| 2 | wTotalLength | 2 | 0037h | |
| 4 | bNumInterfaces | 1 | 01h | |
| 5 | bConfigurationValue | 1 | 01h | |
| 6 | iConfiguration | 1 | 03h | "" |
| 7 | bmAttributes | 1 | E0h | Self Powered, Remote Wakeup |
| 4..0: Reserved | ...00000 | |||
| 5: Remote Wakeup | ..1..... | Yes | ||
| 6: Self Powered | .1...... | Yes | ||
| 7: Reserved (set to one) (bus-powered for 1.0) |
1....... | |||
| 8 | bMaxPower | 1 | 00h | 0 mA |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 09h | |
| 1 | bDescriptorType | 1 | 04h | Interface |
| 2 | bInterfaceNumber | 1 | 00h | |
| 3 | bAlternateSetting | 1 | 00h | |
| 4 | bNumEndpoints | 1 | 04h | |
| 5 | bInterfaceClass | 1 | 03h | HID |
| 6 | bInterfaceSubClass | 1 | 00h | |
| 7 | bInterfaceProtocol | 1 | 00h | |
| 8 | iInterface | 1 | 04h | "" |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 09h | |
| 1 | bDescriptorType | 1 | 21h | HID |
| 2 | bcdHID | 2 | 0110h | 1.10 |
| 4 | bCountryCode | 1 | 00h | |
| 5 | bNumDescriptors | 1 | 01h | |
| 6 | bDescriptorType | 1 | 22h | Report |
| 7 | wDescriptorLength | 2 | 0065h | 101 bytes |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 07h | |
| 1 | bDescriptorType | 1 | 05h | Endpoint |
| 2 | bEndpointAddress | 1 | 01h | 1 Out |
| 3 | bmAttributes | 1 | 03h | Interrupt |
| 1..0: Transfer Type | ......11 | Interrupt | ||
| 7..2: Reserved | 000000.. | |||
| 4 | wMaxPacketSize | 2 | 0040h | 64 bytes |
| 6 | bInterval | 1 | 01h | 1 ms |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 07h | |
| 1 | bDescriptorType | 1 | 05h | Endpoint |
| 2 | bEndpointAddress | 1 | 81h | 1 In |
| 3 | bmAttributes | 1 | 03h | Interrupt |
| 1..0: Transfer Type | ......11 | Interrupt | ||
| 7..2: Reserved | 000000.. | |||
| 4 | wMaxPacketSize | 2 | 0040h | 64 bytes |
| 6 | bInterval | 1 | 01h | 1 ms |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 07h | |
| 1 | bDescriptorType | 1 | 05h | Endpoint |
| 2 | bEndpointAddress | 1 | 02h | 2 Out |
| 3 | bmAttributes | 1 | 03h | Interrupt |
| 1..0: Transfer Type | ......11 | Interrupt | ||
| 7..2: Reserved | 000000.. | |||
| 4 | wMaxPacketSize | 2 | 0040h | 64 bytes |
| 6 | bInterval | 1 | 01h | 1 ms |
| Offset | Field | Size | Value | Description |
|---|---|---|---|---|
| 0 | bLength | 1 | 07h | |
| 1 | bDescriptorType | 1 | 05h | Endpoint |
| 2 | bEndpointAddress | 1 | 82h | 2 In |
| 3 | bmAttributes | 1 | 03h | Interrupt |
| 1..0: Transfer Type | ......11 | Interrupt | ||
| 7..2: Reserved | 000000.. | |||
| 4 | wMaxPacketSize | 2 | 0040h | 64 bytes |
| 6 | bInterval | 1 | 01h | 1 ms |
I put some code snippets here :
// EP objects
extern USB_EpObj usbEpObjOut0, usbEpObjIn0; // Control Endpoint Objects
USB_EpObj usbEpObjOut1, usbEpObjIn1; // Interrupt EP1_IN,EP1_OUT
USB_EpObj usbEpObjOut2, usbEpObjIn2; // Interrupt EP2_IN,EP2_OUT
// USB configuration
USB_EpHandle myUsbConfig[] = { &usbEpObjOut0, &usbEpObjIn0,
&usbEpObjOut1, &usbEpObjIn1,
&usbEpObjOut2, &usbEpObjIn2,
NULL};
// init endpoint 2 objects - interrupt mode, endpoint size 64 byte
// dispatch end of transfer and USB reset event to endpoint object
usb_status = USB_initEndptObj(USB0, &usbEpObjOut1, USB_OUT_EP1, USB_INTR,
0x40, USB_EVENT_EOT|USB_EVENT_RESET,USB_ep1_intrOutEvHandler);
// dispatch end of transfer and USB reset events to endpoint object
usb_status = USB_initEndptObj(USB0, &usbEpObjIn1, USB_IN_EP1, USB_INTR,
0x40, USB_EVENT_EOT,USB_ep1_intrInEvHandler);
// init endpoint 2 objects - interrupt mode, endpoint size 64 byte
// dispatch end of transfer and USB reset event to endpoint object
usb_status = USB_initEndptObj(USB0, &usbEpObjOut2, USB_OUT_EP2, USB_INTR,
0x40, USB_EVENT_EOT|USB_EVENT_RESET,USB_ep2_intrOutEvHandler);
// dispatch end of transfer and USB reset events to endpoint object
usb_status = USB_initEndptObj(USB0, &usbEpObjIn2, USB_IN_EP2, USB_INTR,
0x40, USB_EVENT_EOT,USB_ep2_intrInEvHandler);
// report buffers
Uint16 report3[] = { 0x0000,0x0000, 0x0000, 0x0000 };
Uint16 report2[] = { 0x0000,0x0000, 0x0000, 0x0000 };
Uint16 report1[] = { 0x0000,0x0000, 0x0000, 0x0000 };
Uint16 report0[] = { 0x0000,0x0000, 0x0000, 0x0000 };
// report structs
USB_DataStruct report3_link = { 6,(Uint16 *)&report3[0],NULL };
USB_DataStruct report2_link = { 6,(Uint16 *)&report2[0],&report3_link };
USB_DataStruct report1_link = { 6,(Uint16 *)&report1[0],NULL };
USB_DataStruct report0_link = { 6,(Uint16 *)&report0[0],&report1_link };
// send reports on EP1
USB_postTransaction(&usbEpObjIn1, 12, &report0_link, USB_IOFLAG_LNK);
// send reports on EP2
USB_postTransaction(&usbEpObjIn2, 12, &report2_link, USB_IOFLAG_LNK);
The strange thing is that I have successful communication on usbEpObjIn1 but nothing on usbEpObjIn2. When I remove usbEpObjIn1 from my program (including descriptors etc.) I have successful communication on usbEpObjIn2. I don't get it.
I appreciate any help.
Thank you,
Andreas
