Letcool N350JP
焊接UART接頭
在PCB板上可以找到TP1(RX)、TP2(TX)腳位，如下圖
Baudrate: 115200bps
+++MMP RomCode ver 8000.4.0 2009/02/18 pwrc_cfg=a0000006 vic1_rawSts=00000020 keyscan4=00001880 iotraps=00000000 Read Id : 00-00-00-00-00-00-00-00-00-00 NAND_TYPE: UNKNOWN u16PageNoPerBlk :128 u16PyldLen :2048 u16TotalBlkNo :4096 ecc_mode :0 Start to read DRAM_Init code from flash... Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 offset512 g_pSysInfo->u8PagePerBlkShift8 REDBOOT_FLG blk(2, 530) start to extract DRAM_Init code... call DRAM_Init(0x9d806600, 0x0)... Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 offset512 g_pSysInfo->u8PagePerBlkShift8 REDBOOT_FLG blk(2, 514) Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 retrieving dramcfg... +ScanRam ver v2.0.0.1 new rDRAM10=070b0e22 DRAM Type Scan Start 00000020 init DRAM done Enter the bypass mode! Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 Enter Load_PF u16PageNoPerBlk :256 u16PageSize :4352 u16PyldLen :4096 u16TotalBlkNo :4096 ecc_mode :1 offset512 g_pSysInfo->u8PagePerBlkShift8 REDBOOT_FLG blk(2, 512) +ver=00030000 RedBoot_ver=01000005 Scanram_ver=02000001 chgSpdState=CHG_SPD_AT_27MHZ version=5a0104a5 usb sno=46ed5beb g_delay2ExitSelfRefresh=600, delayForDllLock=0, g_clk_sw_check=00000000 g_LcdRatio[0]=0 g_spll_ratio[0]=000e0a00 g_LcdRatio[1]=7 g_spll_ratio[1]=000e082c g_LcdRatio[2]=11 g_spll_ratio[2]=000e082c g_LcdRatio[3]=8 g_spll_ratio[3]=000e0a44 g_LcdRatio[4]=10 g_spll_ratio[4]=000e0828 -RetrieveSysInfo romfs_mount g_IsFirst_Mount:0 dev sel :0 ReadID(1,0) begin ReSet(1,0) end ReSet(1,0) ReadID(1, 0)buf:0x10007120 2c 68 4 46 89 0 0 0 - 2c 68 4 46 89 0 0 0 2c 68 4 46 89 0 0 0 - 2c 68 4 46 89 0 0 0 ###################################### g_ChipMap[0]=0 g_ChipMap[1]=255 g_ChipMap[2]=255 g_ChipMap[3]=255 ReadID(1,0) buf:0x10007120 2c 68 4 46 89 0 0 0 - 2c 68 4 46 89 0 0 0 2c 68 4 46 89 0 0 0 - 2c 68 4 46 89 0 0 0 XXXXXID : 2c 68 4 46 89 #############pstSysInfo->u16PyldLen:4096 #############pstSysInfo->u16PageNoPerBlk:256 #############pstSysInfo->u16TotalBlkNo:4096 XXpstSysInfo->u8Internal_Chip_Number:0 ###################sysinfo################### pstSysInfo->u16PageNoPerBlk:256 pstSysInfo->u16PageSize:4224 pstSysInfo->u16PyldLen:4096 pstSysInfo->u16ReduntLen:64 pstSysInfo->u16TotalBlkNo:4096 pstSysInfo->u8TotalBlkNoShift:12 pstSysInfo->u8MultiChannel:0 pstSysInfo->u8Support_Internal_Interleave:0 pstSysInfo->u8Support_External_Interleave:0 pstSysInfo->u8Internal_Chip_Number:0 pstSysInfo->u8PagePerBlkShift:8 pstSysInfo->u8Support_TwoPlan:0 g_IsNand_4CS:0 ############################################# begin ReadPage_Test dev sel :0 g_IsInit_nf:1 end ReadWritePage_ex(256) is fail. begin ReadPage_Test rFM_AC_TIMING:0x1f2222 end of AutoSettingACTiming:0x1f2222 retAddr:0x1000000 currNFRCAddr:0x1001040 retAddr:0x1001040 currNFRCAddr:0x1002080 retAddr:0x1002080 currNFRCAddr:0x10030c0 retAddr:0x10030c0 currNFRCAddr:0x1004100 g_nbi.RomFs_Max_BlkCount : 90 **********************NFRC INFO************************* nfrc.rom.start : 64 nfrc.rom.count : 90 nfrc.rom1.start : 154 nfrc.rom1.count : 90 nfrc.rom_a.start : 244 nfrc.rom_a.count : 0 nfrc.block_count : 90 nfrc.page_per_block : 256 nfrc.pagesize : 4096 nfrc.phy_pagesize : 4096 nfrc.sectors_per_page : 8 nfrc.u8Support_TwoPlan : 0 nfrc.u8Support_Internal_Interleave : 0 nfrc.u8Support_External_Interleave : 0 nfrc.u8Internal_Chip_Number : 0 ******************************************************** retAddr:0x1004100 currNFRCAddr:0x10041b4 retAddr:0x10041c0 currNFRCAddr:0x1004274 flg:1 p_nbi->heard : 0x524f4653 p_nbi->version : 4 p_nbi->size : 90 p_nbi->RomFs_Max_BlkCount : 90 p_nbi->RomFs1_Max_BlkCount : 0 p_nbi->flg : 0 p_nbi->IsSuppurtencryption : 0 p_nbi->IsSuppurtenCompress : 0 flg:2 p_nbi->heard : 0x524f4653 p_nbi->version : 4 p_nbi->size : 90 p_nbi->RomFs_Max_BlkCount : 90 p_nbi->RomFs1_Max_BlkCount : 0 p_nbi->flg : 1 p_nbi->IsSuppurtencryption : 0 p_nbi->IsSuppurtenCompress : 0 g_PageSize:4096 pdisk->magic:0x526f6d2e pdisk->nodecount:0x4ab sizeof(romfs_node):32 g_romfs_version:0x1 retAddr:0x1004280 currNFRCAddr:0x100e7ff page count:10 g_Cfg_s.redbootCfg:0xc0000004 pwrc_cfg=a0000006 vic1_rawSts=00000020 keyscan4=00001880 iotraps=00000000 ref_clk: 297000000 Hz sys_clk: 148500000, sys_ahb=74250000, sys_apb=37125000 Hz ceva_clk: 297000000, ceva_ahb=148500000, ceva_apb=74250000 Hz arm_clk: 297000000, arm_ahb=148500000, arm_apb=18562500 Hz g_Cfg_s.redbootCfg:0xc0000004 do_bootcfg: [Exec kernel][Load romfs] ========= usbmsd_init: enter if_dm9000.c debug var(0x00017d74)=0 sysCtrl.c debug var(0x00017d7c)=1 msd debug var(0x00017d84)=1 net_io.c debug var(0x00017d8c)=0 standalone eth_drv.c debug var(0x00017d94)=0 main.c debug var(0x00017d9c)=3 enet.c debug var(0x00017da4)=0 [UDC ]::init_msd(394) ========== init_msd:enter ========== g_sysInfo_s.bootInfo_s.UsbNo:0x46ed5beb Id=46ed5beb g_sysInfo_s.bootInfo_s.UsbNo:0x46ed5beb [UDC ]::genRandomSerial_UDC(2784) read have Id=46ed5beb [UDC ]::genRandomSerial_UDC(2838) finish genRandomSerial_UDC() [UDC ]::init_msd(402) ========== disconnect UDC ========= [UDC ]::initial_udc(1992) --UDC_Init() finish--[UDC ]::start_udc(2022) ---- start_udc()------- [UDC ]::init_msd(419) ======= init udc finish ======== [UDC ]::poll_udc_connected(2622) ====== poll..======= [UDC ]::poll_udc_connected(2650) ====== poll.EXIT EXIT .======= usbmsd_init: exit net_init: skip init ethernet RedBoot(tm) bootstrap and debug environment [ROM] Non-certified release, version v2_0_28 - built 17:41:15, Apr 27 2010 Platform: SUNPLUS_MMP (ARM 9) Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc. Copyright (C) 2003, 2004, eCosCentric Limited Copyright (C) 2008, Sunplusmm v1.0.0.3 RAM: 0x00000000-0x00f00000, [0x00200000-0x00f0000ID av2c 68 4 6 89 h ########f####pstSy/Info->u16PylmLen:4096 # image from#psmfysI fo->u16the image entry p #t: 0x280040 g_Cfg_s.redbootCfg:0xc0000004 == tSycuting boot script in 0.010 seconds - enter ^C to abort fo#Bo### go -c 0x280040 pst_Cfg_s.redbootCeNo0xc0000004 +stSgo image sel: 0, image_sel_set: 0 rmvb enaben: Mask interrupts on all channels ID-CACHE sync and invalidate set up a temporary coBlkxt. workspace_end=0x00f00000, entry=0x00280040 switch context to trampoline. workspace_end=0x00efffb0 pport_font: (height lea0) found builtifo-ont System (0) createfont: (height == u8Pfound builtin font System (0) 8Su5poread:00000003;0f_Is1f0000;0d:9df7bfd3;#9####