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哪個做過PCI設(shè)計的高手，幫我看看，到底出了什么問題？ |
| 作者：將軍令 欄目：技術(shù)交流 |
哪個做過PCI設(shè)計的高手，幫我看看，到底出了什么問題？？？？？？？ 我有一個嵌入系統(tǒng)，包含PCI總線，PCI總線上掛了一些設(shè)備，比如usb、以太網(wǎng)芯片等。今天又一個電路板，可以啟動系統(tǒng)（uclinux） 但是，所有PCI總線上的設(shè)備都不正常。哪個做過PCI設(shè)計的高手，幫我看看，到底出了什么問題？？？？？？？ 我用pci測試軟件，（這個軟件沒有文檔，輸出的信息，我看得暈暈乎乎的） ==================================== 以下是一個好的電路板的PCI總線 掃描信息 boot> pci scan PCI ID SELECT 0: Vendor ID = 1105, DEVICE ID = c621, Type = 00 (Normal) Command = 0006 (MEMORY Enable, MASTER) Status = 0230 (CAP List, 66MHZ) Class = 048000 (Class = Multimedia) Revision = 82, Latency Timer = 00, Cache LINE Size = 00 Interrupt LINE = 00, Interrupt Pin = 01 Base Address 0 = 10000000 (MEMORY, 32 bit, Nonprefetchable) (01000000) Base Address 1 = 00000000 (00000000) Base Address 2 = 00000000 (00000000) Base Address 3 = 00000000 (00000000) Base Address 4 = 00000000 (00000000) Base Address 5 = 00000000 (00000000) PCI ID SELECT 1: Vendor ID = 10ec, DEVICE ID = 8139, Type = 00 (Normal) Command = 0000 () Status = 0290 (CAP List, FAST BACK) Class = 020000 (Class = Network) Revision = 10, Latency Timer = 00, Cache LINE Size = 00 Interrupt LINE = 00, Interrupt Pin = 01 Base Address 0 = 00000000 (I/O, 32 bit, Prefetchable) (00000100) Base Address 1 = 00000000 (00000100) Base Address 2 = 00000000 (00000000) Base Address 3 = 00000000 (00000000) Base Address 4 = 00000000 (00000000) Base Address 5 = 00000000 (00000000) PCI ID SELECT 2: Vendor ID = 1106, DEVICE ID = 3038, Type = 80 (UNKNOWN) Command = 0000 () Status = 0210 (CAP List) Class = 0c0300 (Class = Serial Bus) Revision = 61, Latency Timer = 16, Cache LINE Size = 00 Interrupt LINE = 00, Interrupt Pin = 01 Base Address 0 = 00000000 (00000000) Base Address 1 = 00000000 (00000000) Base Address 2 = 00000000 (00000000) Base Address 3 = 00000000 (00000000) Base Address 4 = 0000fce0 (I/O, 32 bit, Prefetchable) (00000020) Base Address 5 = 00000000 (00000000) boot> ==================================== 以下是一個壞的電路板的PCI總線 掃描信息 boot>pci scan PCI ID SELECT 0: Vendor ID = 0800, DEVICE ID = 0000, Type = 00 (Normal) Command = 0804 (MASTER, UNKNOWN) Status = 0000 () Class = 000008 (Class = Reserved) Revision = 08, Latency Timer = 08, Cache LINE Size = 0c Interrupt LINE = 3c, Interrupt Pin = 08 Base Address 0 = 00000810 (MEMORY, 32 bit, Prefetchable) (fffff7f0) Base Address 1 = 00000810 (MEMORY, 64 bit, Prefetchable) (fffff7f0) Base Address 2 = 00000810 (MEMORY, 32 bit, Nonprefetchable) (fffff7f0) Base Address 3 = 00000810 (MEMORY, 64 bit, Nonprefetchable) (fffff7f0) Base Address 4 = 00000820 (MEMORY, 32 bit, Prefetchable) (fffff7e0) Base Address 5 = 00000820 (MEMORY, 64 bit, Prefetchable) (fffff7e0) PCI ID SELECT 1: Vendor ID = 1000, DEVICE ID = 0000, Type = 00 (Normal) Command = 1004 (MASTER, UNKNOWN) Status = 0000 () Class = 000010 (Class = Reserved) Revision = 08, Latency Timer = 10, Cache LINE Size = 0c Interrupt LINE = 3c, Interrupt Pin = 10 Base Address 0 = 00001010 (MEMORY, 32 bit, Prefetchable) (00000000) Base Address 1 = 00000000 (00000000) Base Address 2 = 00000000 (00000000) Base Address 3 = 00000000 (00000000) Base Address 4 = 00000000 (00000000) Base Address 5 = 00000000 (00000000) PCI ID SELECT 2: Vendor ID = 1600, DEVICE ID = 0000, Type = 00 (Normal) Command = 2004 (MASTER, UNKNOWN) Status = 0210 (CAP List) Class = 000020 (Class = Reserved) & |
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