I am making usb driver for omap1510 on uboot. When I pluged in the USB port to PC. It found COM6 (a virtual com port). But When I open the COM6 on hyper-terminal, it says "Cannot open"
The following traces are from the Bus Hound
Device Phase Data Description Cmd.Phase.Ofs(rep) ------ ----- -------------------------------------------------- ---------------- ------------------ 26.0 CTL a1 21 00 00 00 00 07 00 GET LINE CODING 1.1.0(4) 26.0 DI 00 c2 01 00 00 00 08 ....... 1.2.0 26.0 URB 50 00 08 00 00 00 00 00 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 1.3.0 58 3a 3a 85 0b 00 00 00 07 00 00 00 f0 ab f5 b9 1.3.16 26.0 CTL 21 20 00 00 00 00 07 00 SET LINE CODING 5.1.0 26.0 DO 00 c2 01 00 00 00 08 ....... 5.2.0 26.0 USTS 04 00 00 c0 stall pid 5.3.0 26.0 URB 50 00 08 00 04 00 00 c0 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 5.4.0 58 3a 3a 85 0a 00 00 00 07 00 00 00 ec ab f5 b9 5.4.16 26.0 CTL a1 21 00 00 00 00 07 00 GET LINE CODING 6.1.0 26.0 DI 00 c2 01 00 00 00 08 ....... 6.2.0 26.0 URB 50 00 08 00 00 00 00 00 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 6.3.0 58 3a 3a 85 0b 00 00 00 07 00 00 00 c8 ab f5 b9 6.3.16 26.0 CTL a1 21 00 00 00 00 07 00 GET LINE CODING 7.1.0(2) 26.0 DI 00 c2 01 00 00 00 08 ....... 7.2.0 26.0 URB 50 00 08 00 00 00 00 00 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 7.3.0 58 3a 3a 85 0b 00 00 00 07 00 00 00 f0 ab f5 b9 7.3.16 26.0 CTL 21 20 00 00 00 00 07 00 SET LINE CODING 9.1.0 26.0 DO b0 04 00 00 00 00 08 ....... 9.2.0 26.0 USTS 04 00 00 c0 stall pid 9.3.0 26.0 URB 50 00 08 00 04 00 00 c0 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 9.4.0 58 3a 3a 85 0a 00 00 00 07 00 00 00 ec ab f5 b9 9.4.16 26.0 CTL a1 21 00 00 00 00 07 00 GET LINE CODING 10.1.0 26.0 DI 00 c2 01 00 00 00 08 ....... 10.2.0 26.0 URB 50 00 08 00 00 00 00 00 40 3a 3a 85 22 00 00 00 CONTROL TRANSFER 10.3.0 58 3a 3a 85 0b 00 00 00 07 00 00 00 c8 ab f5 b9 10.3.16 26.0 CTL 21 22 00 00 00 00 00 00 SET CTRL LINE ST 11.1.0 26.0 URB 50 00 08 00 00 00 00 00 40 3a 3a 85 20 00 00 00 CONTROL TRANSFER 11.2.0 58 3a 3a 85 0a 00 00 00 00 00 00 00 00 00 00 00 11.2.16
How can I solve this problem?