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68013 不用EEPROM,要不要悬空?上拉可以吗?
68013枚举通不过,VID,PID全是零,设备管理里面也没有提示检测到设备,只是鼠标的光标显示了一下忙标志,注册表里面VID,PID全是零。用的是总线供电,接了一个24c64-2.7v, PCB全是3.3v,win98,USB的线长120cm。我现在想改成不要EEPROM,看可不可以,但不知怎样接引脚?是不是必须悬空,上拉可以吗?以或者只能下拉?请指教,有分送。
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沙发#
发布于:2004-07-14 12:10
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板凳#
发布于:2004-07-14 15:52
不接EEPROM也可以的,IIC两个上拉电阻是必须要接的 不要EEPROM,上拉。但还是通不过,VIP,DIP都为零。为什么??? 分数稍后给你。 |
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地板#
发布于:2004-07-14 17:37
是4.7K啊!!!
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地下室#
发布于:2004-07-14 18:03
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5楼#
发布于:2004-07-15 09:18
你接的EEPROM为64,地址应该为001,不要搞错了 “地址应该为001”,我没搞错这个,昨晚用BUS HOUND看了一下发现GET DESCRIPTOR时,返回错误代码。后来检查I2C的时钟和数据线发现数据线不能被上拉,测到的电压是0.02v.是不是芯片坏了!倒霉!老兄给点意见。具体如下: Bus Hound 5.00 capture. Complements of www.perisoft.net debug1---取描述符时,设备没有响应 Device - Device ID (followed by the endpoint for USB devices) (0) VIA Tech 3038 PCI to USB Universal Host Controller (1) USB Root Hub (2) Myson-Century CS8813 USB Mass Storage Device Phase - Phase Type CTL USB control transfer DI Data in URB USB request block USTS USB status Data - Hex dump of the data transferred Descr - Description of the phase Cmd... - Position in the captured data Device Phase Data Description Cmd.Phase.Ofs(rep) ------ ----- -------------------------------------------------- ---------------- ------------------ 1.1 DI 02 . 1.1.0 1.1 URB 48 00 09 00 00 00 00 00 BULK/INT XFER 1.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 2.1.0(2) 1.0 DI 01 03 01 00 .... 2.2.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 2.3.0 1.0 CTL 23 01 10 00 01 00 00 00 CLEAR FEATURE 4.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 4.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 5.1.0 1.0 DI 01 03 00 00 .... 5.2.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 5.3.0 1.0 CTL 23 03 04 00 01 00 00 00 SET FEATURE 6.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 6.2.0 1.1 DI 02 . 7.1.0 1.1 URB 48 00 09 00 00 00 00 00 BULK/INT XFER 7.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 8.1.0 1.0 DI 03 03 10 00 .... 8.2.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 8.3.0 1.0 CTL 23 01 14 00 01 00 00 00 CLEAR FEATURE 9.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 9.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 10.1.0 1.0 DI 03 03 00 00 .... 10.2.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 10.3.0 1.0 URB 24 00 00 10 00 00 00 00 11.1.0 1.0 CTL 80 06 00 01 00 00 40 00 GET DESCRIPTOR 12.1.0 1.0 USTS 05 00 00 80 no response 12.2.0 1.0 URB 50 00 08 00 05 00 00 80 CONTROL TRANSFER 12.3.0 1.0 URB 14 00 01 10 00 00 00 00 13.1.0 1.0 CTL 23 03 04 00 01 00 00 00 SET FEATURE 14.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 14.2.0 1.1 DI 02 . 15.1.0 1.1 URB 48 00 09 00 00 00 00 00 BULK/INT XFER 15.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 16.1.0 1.0 DI 03 03 10 00 .... 16.2.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 16.3.0 1.0 CTL 23 01 14 00 01 00 00 00 CLEAR FEATURE 17.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 17.2.0 1.0 URB 24 00 00 10 00 00 00 00 18.1.0 1.0 CTL 80 06 00 01 00 00 40 00 GET DESCRIPTOR 19.1.0 1.0 USTS 05 00 00 80 no response 19.2.0 1.0 URB 50 00 08 00 05 00 00 80 CONTROL TRANSFER 19.3.0 1.0 URB 14 00 01 10 00 00 00 00 20.1.0 1.0 CTL 23 03 04 00 01 00 00 00 SET FEATURE 21.1.0 1.0 URB 50 00 08 00 00 00 00 00 CONTROL TRANSFER 21.2.0 1.1 DI 02 . 22.1.0 1.1 URB 48 00 09 00 00 00 00 00 BULK/INT XFER 22.2.0 1.0 CTL a3 00 00 00 01 00 04 00 GET STATUS 23.1.0 |
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6楼#
发布于:2004-07-15 09:25
是4.7K啊!!! 按CYPRESS 公布的那张原理图上拉是用10k,所以我用10k的。你说的4.7k是指上拉电阻吗? |
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7楼#
发布于:2004-07-15 16:14
pengenwen,分数已给你了,你那边有68013单独卖吗?有的话可不可以卖个给我,开个价。多谢!
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8楼#
发布于:2004-07-16 16:21
pengenwen 兄,有IC吗?帮个忙吧。
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9楼#
发布于:2004-07-16 18:17
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10楼#
发布于:2004-07-17 09:15
有IC,到www.zstel.com去看吧 看过了,给我发个EMAIL,报个价好吗? |
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