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0>> [WARNING: TEST = Data Bitwalk on Master\r\n0>H/W under test = CPU, Memory, Motherboard/Centerplane\r\n0>MSG = Data or Instruction Access Error,\r\n Trap Type 00000000.00000032\r\n Trap PC ffffffff.f0124f38\r\n Trap Level 00000000.00000001\r\n AFSR 00001000.00000000\r\n AFAR 00000020.0031d440\r\n0>END_WARNING\r\n\r\n0> TO bit: Time-out from system bus\r\n\r\n0>\r\n0>Don\'t recognize first character (operand) of command\r\n0>General command format is:\r\n\r\n op_size_loop asi address data [count]\r\n op = r or w or q (read or write or quit)\r\n size = b,h,w or x\r\n loop = l or space. If specified, loops transcation until any key is hit\r\n asi = 4 - 0xf9 (if alternate space)\r\n address = device or memory address\r\n data = write data (if write)\r\n count = optional range count\r\n NOTE: \'.\'s are ignored and can be used as seperators.\r\n when in loop mode reads are silent\r\nExamples:\r\n> rx 55 0 40 /* reads 40 entries in the dmmu tlb starting at va 0 */\r\n> wb 14 0 55 /* writes byte 0x55 to asi 0x14 location 0*/\r\n> rxl 14 0 3 /* loops on read of 3 longwords from location 0 of memory\r\n using asi 14*/\r\n> q /* quit*/\r\n280r坏了,现在好不容易弄串口输出的信息是什么意思,我该做些什么, |
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