工程师职业生涯 - 最近的话题

TPS40170EVM-578: 有关TPS40170评估板的设计资料

su chengjun — Thu, 07 May 2026 03:24:37 GMT

Part Number: TPS40170EVM-578

评估板源文件

TPS40170EVM-578: 有关TPS40170评估板的设计资料

su chengjun — Thu, 07 May 2026 03:23:32 GMT

Part Number: TPS40170EVM-578

评估板源文件

MSP430F47187: MSP430F47187IPZR

li liwei — Thu, 19 Mar 2026 03:40:34 GMT

Part Number: MSP430F47187

It works to transfer the data of SD16 channel 0 using DMA, but no matter how hard I try, it doesn't work on channel 1. I'd like to ask if there are any reference examples?

LIS3DH 三轴加速度低功耗芯片，待机状态确实很低，但是晃动产生中断，功耗就一直涨，，这是为啥IIC通讯

user5396938 — Fri, 29 Jan 2021 08:26:32 GMT

配置代码：

unsigned char lis3dhinit(void)
{
   unsigned char response=0;

LIS3DH_WriteRegReg(0x20, 0x4f);   //CTRL_REG1   25HZ ，使能XYZ轴，开启低功耗模式 0x3f        ODR + F XYZ +低功耗

LIS3DH_WriteRegReg(0x21, 0x09);   //CTRL_REG2   打开高通滤波器，使能中断1

LIS3DH_WriteRegReg(0x22, 0x40);   //CTRL_REG3 打开IA1 INT1 中断使能

LIS3DH_WriteRegReg(0x23, 0x00);   //CTRL_REG4   +-2g

LIS3DH_WriteRegReg(0x24, 0x00);   //CTRL_REG5 写入00 可正常产生中断   08是锁存中断

/*********控制中断检测灵敏度*****/
LIS3DH_WriteRegReg(0x32, 0x08); //INT1_THS 加速度阈值   41
LIS3DH_WriteRegReg(0x33, 0X00);   //INT1_DURATION 0x80 中断1 持续时间改为 0 试试 82

LIS3DH_WriteRegReg(0x30, 0x2A);   //INT1_CFG 0x2A

LIS3DH_WriteRegReg(0x25, 0x02);   //CTRL_REG6

   return response;
}

am335x 的uboot图形配置界面如何显示出来

user6200500 — Tue, 22 Oct 2019 10:02:08 GMT

在am335x 的uboot中执行make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm O=am335x_evm menuconfig后，没有图形界面出来。提示：fatal error: curses.h: No such file or directory。如何解决才能使图形界面显示出来便于配置。

dm368 UBI error: ubi_io_read: error -74 (ECC error) while reading 188 bytes from PEB 128:17344, read 188 byte

溪风 — Tue, 03 Sep 2019 07:50:52 GMT

最近在TI DM368 做相关项目，系统启动之后老是包 ubi ecc err,请各位大神指点一下

我的文件系统为ubi 文件系统

flash采用硬件ecc 4bit 校验

遇到的这个问题感觉好奇怪啊，当我把sd 卡拔了之后，启动正常，不报ubi ecc err .但是当我插上sd卡时就出现问题了，一下为报错时的打印信息。求大神指点，

DM36x initialization passed!
TI UBL Version: 1.50
Booting Catalog Boot Loader
BootMode = NAND
Starting NAND Copy...
Valid magicnum, 0xA1ACED66, found in block 0x00000008.
   DONE
Jumping to entry point at 0x81080000.

U-Boot 1.3.4-dirty (Sep 3 2019 - 11:18:04) DM368-IPNC-5.1.0

I2C:   ready
DRAM: 128 MB
NAND: NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron NAND 512MiB 3,3V 8-bit)
Bad block table not found for chip 0
Bad block table not found for chip 0

loop oob 81021dd8 Bad block table written to 0x1ffe0000, version 0x01

loop oob 81021dd8 Bad block table written to 0x1ffc0000, version 0x01
512 MiB
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
ARM Clock :- 486MHz
DDR Clock :- 360MHz
Ethernet PHY: GENERIC @ 0x01
Hit any key to stop autoboot: 0

Loading from NAND 512MiB 3,3V 8-bit, offset 0x500000
   Image Name:   Linux-2.6.37_IPNC_DM368_5.1.0
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4198848 Bytes = 4 MB
   Load Address: 80008000
   Entry Point: 80008000
## Booting kernel from Legacy Image at 80700000 ...
   Image Name:   Linux-2.6.37_IPNC_DM368_5.1.0
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4198848 Bytes = 4 MB
   Load Address: 80008000
   Entry Point: 80008000
   Loading Kernel Image ... OK
OK

Starting kernel ...

[    0.000000] Linux version 2.6.37_IPNC_DM368_5.1.0 (cuiyunpeng@esw-develop) (gcc version 4.3.3 (GCC) ) #1 PREEMPT Tue Sep 3 11:19:34 CST 2019
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: DaVinci DM36x IPNC
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] DaVinci dm36x_rev1.2 variant 0x8
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 12192
[    0.000000] Kernel command line: console=ttyS1,115200n8 noinitrd ip=192.168.1.2:192.168.1.200:192.168.1.1:255.255.255.0 eth=00:0c:0c:A0:02:b4 mem=48M cmemk.phys_start=0x83000000 cmemk.phys_end=0x88000000 cmemk.phys_start_1=0x00001000 cmemk.phys_end_1=0x00008000 cmemk.pools_1=1x28672 cmemk.allowOverlap=1 cmemk.useHeapIfPoolUnavailable=1 nohz=off highres=off clocksource=acpi_pm lpj=1077248 rw ubi.mtd=3,2048 rootfstype=ubifs root=ubi0:rootfs
[    0.000000] TI DaVinci EMAC: kernel boot params Ethernet address: 00:0c:0c:A0:02:b4
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 48MB = 48MB total
[    0.000000] Memory: 44424k/44424k available, 4728k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     DMA     : 0xff000000 - 0xffe00000   ( 14 MB)
[    0.000000]     vmalloc : 0xc3800000 - 0xfea00000   ( 946 MB)
[    0.000000]     lowmem : 0xc0000000 - 0xc3000000   ( 48 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   ( 16 MB)
[    0.000000]       .init : 0xc0008000 - 0xc002b000   ( 140 kB)
[    0.000000]       .text : 0xc002b000 - 0xc03e0000   (3796 kB)
[    0.000000]       .data : 0xc03e0000 - 0xc04091c0   ( 165 kB)
[    0.000000] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptable hierarchical RCU implementation.
[    0.000000] RCU-based detection of stalled CPUs is disabled.
[    0.000000] Verbose stalled-CPUs detection is disabled.
[    0.000000] NR_IRQS:245
[    0.000000] Console: colour dummy device 80x30
[    0.000276] Calibrating delay loop (skipped) preset value.. 215.44 BogoMIPS (lpj=1077248)
[    0.000329] pid_max: default: 32768 minimum: 301
[    0.000528] Security Framework initialized
[    0.000668] Mount-cache hash table entries: 512
[    0.001441] CPU: Testing write buffer coherency: ok
[    0.003054] devtmpfs: initialized
[    0.005845] DaVinci: 8 gpio irqs
[    0.006433] NET: Registered protocol family 16
[    0.119833] bio: create slab <bio-0> at 0
[    0.126120] usbcore: registered new interface driver usbfs
[    0.127438] usbcore: registered new interface driver hub
[    0.128303] usbcore: registered new device driver usb
[    0.134066] vpss vpss: dm365_vpss vpss probed
[    0.134126] vpss vpss: dm365_vpss vpss probe success
[    0.137916] Advanced Linux Sound Architecture Driver Version 1.0.23.
[    0.139862] Switching to clocksource timer0_1
[    0.216629] musb-hdrc: version 6.0, peripheral, debug=0
[    0.216815] musb-hdrc musb-hdrc: dma type: dma-cppi3
[    0.231233] musb-hdrc musb-hdrc: USB Peripheral mode controller at fec64000 using DMA, IRQ 12
[    0.231945] NET: Registered protocol family 2
[    0.232251] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.232965] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[    0.233093] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.233173] TCP: Hash tables configured (established 2048 bind 2048)
[    0.233201] TCP reno registered
[    0.233236] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.233292] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.233785] NET: Registered protocol family 1
[    0.234543] RPC: Registered udp transport module.
[    0.234584] RPC: Registered tcp transport module.
[    0.234610] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.302473] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.302543] JFFS2 version 2.2. (NAND) ? 2001-2006 Red Hat, Inc.
[    0.305946] msgmni has been set to 86
[    0.311107] io scheduler noop registered (default)
[    0.312744] CSL: Module install successful, device major num = 253
[    0.312788] CSL: Module version 0.10.00, built on Sep 3 2019 11:18:21
[    0.312835] I2C: Module install successful, device major num = 252
[    0.312874] DMA: Module install successful, device major num = 251
[    0.312900] DRV: Module install successful
[    0.312922] DRV: Module built on Sep 3 2019 11:18:22
[    0.312948] DRV: EDMACC.QUEPRI = 00002777
[    0.312968] DRV: SYSTEM.MSTPRI0 = 00440011
[    0.312988] DRV: SYSTEM.MSTPRI1 = 00000444
[    0.313008] DRV: ISP.BCR        = 00000002
[    0.313027] DRV: SYSTEM.MISC    = 00000399
[    0.313048] EDMAK module: built on Sep 3 2019 at 11:18:13
[    0.313075]   Reference Linux version 2.6.37
[    0.313097]   File /home/cuiyunpeng/rh-project/kba8w20190318/src/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/edma/src/module/edmak.c
[    0.314668] IRQK module: built on Sep 3 2019 at 11:18:13
[    0.314715]   Reference Linux version 2.6.37
[    0.314740]   File /home/cuiyunpeng/rh-project/kba8w20190318/src/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/irq/src/module/irqk.c
[    0.316343] irqk initialized
[    0.317893] CMEMK module: built on Sep 3 2019 at 11:18:14
[    0.317942]   Reference Linux version 2.6.37
[    0.317967]   File /home/cuiyunpeng/rh-project/kba8w20190318/src/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
[    0.322756] allocated heap buffer 0xc4000000 of size 0x5000000
[    0.322796] heap fallback enabled - will try heap if pool buffer is not available
[    0.322835] CMEM Range Overlaps Kernel Physical - allowing overlap
[    0.322866] CMEM phys_start (0x1000) overlaps kernel (0x80000000 -> 0x83000000)
[    0.323024] cmemk initialized
[    0.323076] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[    0.419067] serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A
[    0.478945] serial8250.0: ttyS1 at MMIO 0x1d06000 (irq = 41) is a 16550A
[    1.050484] console [ttyS1] enabled
[    1.092757] brd: module loaded
[    1.113143] loop: module loaded
[    1.122986] ONFI flash detected
[    1.126280] ONFI param page 0 valid
[    1.129809] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron NAND 512MiB 3,3V 8-bit)
[    1.140363] Bad block table not found for chip 0
[    1.146289] Bad block table not found for chip 0
[    1.151070] Scanning device for bad blocks
[    1.476251] Creating 7 MTD partitions on "davinci_nand.0":
[    1.481900] 0x000000000000-0x000000300000 : "bootloader"
[    1.491667] 0x000000300000-0x000000500000 : "params"
[    1.501321] 0x000000500000-0x000000a00000 : "kernel"
[    1.511023] 0x000000a00000-0x000002200000 : "filesystem1"
[    1.521266] 0x000002200000-0x000002a00000 : "data1"
[    1.530985] 0x000002a00000-0x000004200000 : "filesystem2"
[    1.541320] 0x000004200000-0x000020000000 : "reserve"
[    1.552240] davinci_nand davinci_nand.0: controller rev. 2.3
[    1.561210] UBI: attaching mtd3 to ubi0
[    1.565094] UBI: physical eraseblock size:   131072 bytes (128 KiB)
[    1.571711] UBI: logical eraseblock size:    126976 bytes
[    1.577158] UBI: smallest flash I/O unit:    2048
[    1.582019] UBI: sub-page size:              512
[    1.586676] UBI: VID header offset:          2048 (aligned 2048)
[    1.592821] UBI: data offset:                4096
[    1.739711] UBI: max. sequence number:       0
[    1.768289] UBI: volume 0 ("rootfs") re-sized from 166 to 186 LEBs
[    1.776918] UBI: attached mtd3 to ubi0
[    1.780820] UBI: MTD device name:            "filesystem1"
[    1.786350] UBI: MTD device size:            24 MiB
[    1.791365] UBI: number of good PEBs:        192
[    1.796017] UBI: number of bad PEBs:         0
[    1.800539] UBI: number of corrupted PEBs:   0
[    1.805011] UBI: max. allowed volumes:       128
[    1.809653] UBI: wear-leveling threshold:    4096
[    1.814439] UBI: number of internal volumes: 1
[    1.818912] UBI: number of user volumes:     1
[    1.823422] UBI: available PEBs:             0
[    1.827895] UBI: total number of reserved PEBs: 192
[    1.832844] UBI: number of PEBs reserved for bad PEB handling: 2
[    1.838890] UBI: max/mean erase counter: 1/0
[    1.843222] UBI: image sequence number: 1645193325
[    1.848174] UBI: background thread "ubi_bgt0d" started, PID 453
[    1.861025] spi_davinci spi_davinci.0: Controller at 0xfec66000
[    1.940118] davinci_mdio davinci_mdio.0: davinci mdio revision 1.4
[    1.946362] davinci_mdio davinci_mdio.0: detected phy mask fffffffd
[    1.954159] davinci_mdio.0: probed
[    1.957622] davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver unknown
[    1.969255] rtc_davinci rtc_davinci.0: rtc core: registered rtc_davinci as rtc0
[    1.977994] i2c /dev entries driver
[    1.983938] Linux media interface: v0.10
[    1.988578] Linux video capture interface: v2.00
[    1.995444] vpbe-osd vpbe-osd: OSD sub device probe success
[    2.002039] vpbe-venc vpbe-venc: VENC sub device probe success
[    2.008879] vpbe-v4l2 vpbe-v4l2: vpbe v4l2 device registered
[    2.014924] Setting default output to Composite
[    2.019502] Setting default mode to ntsc
[    2.023711] vpbe-v4l2 vpbe-v4l2: Trying to register VPBE display device.
[    2.030546] vpbe-v4l2 vpbe-v4l2: layer=c2831800,layer->video_dev=c28318e8
[    2.038321] vpbe-v4l2 vpbe-v4l2: Trying to register VPBE display device.
[    2.045301] vpbe-v4l2 vpbe-v4l2: layer=c2954800,layer->video_dev=c29548e8
[    2.054049] watchdog watchdog: heartbeat 60 sec
[    2.062046] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    2.074227] Error: Driver 'davinci-mcbsp' is already registered, aborting...
[    2.084323] asoc: cq93vc-hifi <-> davinci-vcif mapping ok
[    2.094011] ALSA device list:
[    2.097024]   #0: DaVinci DM365 EVM
[    2.111364] nf_conntrack version 0.5.0 (694 buckets, 2776 max)
[    2.131279] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.136891] TCP cubic registered
[    2.142721] NET: Registered protocol family 17
[    2.147381] Registering the dns_resolver key type
[    2.172228] rtc_davinci rtc_davinci.0: setting system clock to 2000-01-01 00:40:29 UTC (946687229)
[    2.185468] mmc0: new high speed SDHC card at address 0001
[    2.192490] mmcblk0: mmc0:0001 SD32G 28.9 GiB
[    2.200288] mmcblk0: p1 p2
[    2.251723] net eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, id=181b8b0)
[    2.320556] IP-Config: Complete:
[    2.323653]      device=eth0, addr=192.168.1.2, mask=255.255.255.0, gw=192.168.1.1,
[    2.331381]      host=192.168.1.2, domain=, nis-domain=(none),
[    2.337261]      bootserver=192.168.1.200, rootserver=192.168.1.200, rootpath=
[    2.449825] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[    2.455982] UBIFS: file system size:   22347776 bytes (21824 KiB, 21 MiB, 176 LEBs)
[    2.463750] UBIFS: journal size:       3301376 bytes (3224 KiB, 3 MiB, 26 LEBs)
[    2.471153] UBIFS: media format:       w4/r0 (latest is w4/r0)
[    2.477025] UBIFS: default compressor: lzo
[    2.481189] UBIFS: reserved for root: 0 bytes (0 KiB)
[    2.488545] VFS: Mounted root (ubifs filesystem) on device 0:13.
[    2.496109] devtmpfs: mounted
[    2.499254] Freeing init memory: 140K
INIT: version 2.86 booting
mount datafs...
Starting mounting local filesystems: mount mount: according to /proc/mounts, ubi0:rootfs is already mounted on /
mount: mounting none on /dev/shm failed: No such file or directory
failed (1: ).
Starting internet superserver: inetd.
[    3.551501] tun: Universal TUN/TAP device driver, 1.6
[    3.556607] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[    4.250403] PHY: 0:01 - Link is Up - 100/Full
INIT: Entering runlevel: 5
Starting telnet daemon.
Starting syslogd/klogd: done
umount: can't umount /mnt/mmc: Invalid argument
ls: /mnt/mmc/kba12w-sw-firmware-r*.bin: No such file or directory
Upgrade file does not exist
system server 1[    5.339696] g_file_storage gadget: No serial-number string provided!

system server 2
system server 3[    5.359502] g_file_storage gadget: File-backed Storage Gadget, version: 1 September 2010

FileMngThread created
system server 4
system server 5
AlramThread created
system server 6
Share memory init[    5.389094] g_file_storage gadget: Number of LUNs=1
success
IPNC_DM368_5.1.0 (cuiyunpeng@esw-develop) (gcc version[    5.400215] g_file_storage gadget-lun0: ro=0, nofua=0, file: /dev/mmcblk0p2
4.3.3 (GCC) ) #1 PREEMP
systemInit entersystemInit enter1systemInit enter2can't open sys file: /mnt/nand/sysenv.cfg
unlink old config file faild. Error: No such file or directory
save_sys_file OK!
Warning: Bad CRC, using default environment
## Error: "SN" not defined
FileMng: Error run serch SN cmd error
systemInit enter3net_search_gateway:eth0, 1A8C0, 0, 1
net_search_gateway:eth0, 0, 101A8C0, 3

CPU is DM368
systemInit enter4systemInit enter5systemInit enter6
*****************************************************************

IPNC BUILD VERSION: DM368 IPNC RDK V5.10.00.04

*****************************************************************

./av_server.out DM368 PAL AUDIO 8000 G711 64000 TI2A AEWB 720P H264 4000000 CBR AUTO MENUOFF &
systemInit enter7systemInit enter8changeTimeZone not run
[    5.680755] usb connect
ApproDrvInit: 7

DM365MM Init Successful
AVSERVER UI: Initializing.
[    5.834740] g_file_storage gadget: high speed config #1

CLK Hz,
ARM   Hz = 486000000
DDR   Hz = 360000000
VPSS Hz = 360000000
IMCOP Hz = 360000000

DRV LDC: GetConfig 0004 0x0
[    5.962782] UBI error: ubi_io_read: error -74 (ECC error) while reading 188 bytes from PEB 128:17344, read 188 bytes
[    5.993261] UBIFS error (pid 618): ubifs_read_node: bad node type (40 but expected 9)
[    6.017227] UBIFS error (pid 618): ubifs_read_node: bad node at LEB 126:13248, LEB mapping status 1
[    6.035360] UBIFS error (pid 618): do_readpage: cannot read page 36 of inode 1182, error -22
[OSA_FILE ] Reading file [/mnt/nand/IMG_Paramset.bin] ... ERROR
IMAGE TUNE: Paramset File is not available..... Setting DEFAULT parameter
[    6.146272] UBI error: ubi_io_read: error -74 (ECC error) while reading 2533 bytes from PEB 87:9376, read 2533 bytes
[    6.158347] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 85:5280, error -74
[    6.169943] UBIFS error (pid 618): ubifs_read_node: bad node type (86 but expected 1)
[    6.179248] UBIFS error (pid 618): ubifs_read_node: bad node at LEB 85:5280, LEB mapping status 1
[    6.189277] UBIFS error (pid 618): do_readpage: cannot read page 71 of inode 1182, error -22
[    6.227656] UBI error: ubi_io_read: error -74 (ECC error) while reading 667 bytes from PEB 97:109384, read 667 bytes
[    6.239705] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 95:105288, error -74
[    6.265028] UBI error: ubi_io_read: error -74 (ECC error) while reading 188 bytes from PEB 128:32512, read 188 bytes
[    6.303112] UBI error: ubi_io_read: error -74 (ECC error) while reading 2587 bytes from PEB 90:79272, read 2587 bytes
[    6.315139] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 88:75176, error -74
[    6.346080] UBI error: ubi_io_read: error -74 (ECC error) while reading 2991 bytes from PEB 91:57208, read 2991 bytes
[    6.358360] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 89:53112, error -74
[    6.392422] UBI error: ubi_io_read: error -74 (ECC error) while reading 2793 bytes from PEB 91:65296, read 2793 bytes
[    6.404441] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 89:61200, error -74
[    6.428194] UBI error: ubi_io_read: error -74 (ECC error) while reading 2572 bytes from PEB 94:83920, read 2572 bytes
[    6.440678] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 92:79824, error -74
[    6.453703] UBIFS error (pid 618): ubifs_read_node: bad node type (56 but expected 1)
[    6.463098] UBIFS error (pid 618): ubifs_read_node: bad node at LEB 92:79824, LEB mapping status 1
[    6.473308] UBIFS error (pid 618): do_readpage: cannot read page 446 of inode 1182, error -22
[    6.521427] UBI error: ubi_io_read: error -74 (ECC error) while reading 188 bytes from PEB 128:21376, read 188 bytes

[    6.559567] UBI error: ubi_io_read: error -74 (ECC error) while reading 1750 bytes from PEB 92:97904, read 1750 bytes
[    6.595402] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 90:93808, error -74
[    6.687958] UBI error: ubi_io_read: error -74 (ECC error) while reading 3090 bytes from PEB 85:120560, read 3090 bytes
[    6.700037] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 83:116464, error -74
[    6.712219] UBIFS error (pid 618): ubifs_read_node: bad node type (38 but expected 1)
[    6.721628] UBIFS error (pid 618): ubifs_read_node: bad node at LEB 83:116464, LEB mapping status 1
[    6.731859] UBIFS error (pid 618): do_readpage: cannot read page 20 of inode 1182, error -22
[    6.781842] UBI error: ubi_io_read: error -74 (ECC error) while reading 3038 bytes from PEB 85:123656, read 3038 bytes
[    6.793772] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 83:119560, error -74
[    6.819652] UBI error: ubi_io_read: error -74 (ECC error) while reading 2828 bytes from PEB 85:92152, read 2828 bytes
[    6.832037] UBIFS error (pid 618): try_read_node: cannot read node type 1 from LEB 83:88056, error -74
[    6.844003] UBIFS error (pid 618): ubifs_check_node: bad magic 0x195d490a, expected 0x6101831
[    6.853746] UBIFS error (pid 618): ubifs_check_node: bad node at LEB 83:88056
[    6.862006] UBIFS error (pid 618): ubifs_read_node: expected node type 1
[    6.868922] UBIFS error (pid 618): do_readpage: cannot read page 9 of inode 1182, error -117
DM365MM Init SuccessfulSYSTEM.MSTPRI0 value changed to 00440011

PCIe参考时钟（100MHz）跨板处理方式

user6111471 — Fri, 23 Aug 2019 06:53:34 GMT

主板与副板通过PCIe3.0进行数据传输，主板PCIe3.0参考时钟（100MHz）和数据线（x 16lane）一起通过连接器传输给副板，数据线采用的是AC耦合方式，参考时钟设计为DC 耦合方式。请教各位，在板对板通信时，PCIe参考时钟是DC 耦合方式好，还是AC耦合方式好？

请问TMS320LF2406APZA 有哪个型号可以替代

wenping wang1 — Thu, 26 Apr 2018 03:22:33 GMT

请问TMS320LF2406APZA 有哪个型号可以替代感谢各位我邮箱everbell@126.com

TI西电第二批卓越工程师班毕业啦！

Frances Han — Tue, 16 Jun 2015 07:24:25 GMT

今年是TI西电卓越工程师计划的第二年，在春暖花开的五月，又一批莘莘学子从卓越班毕业，在成为卓越工程师的道路又进了一步。让我们听听，作为卓越班的学生代表，王韵彤同学的毕业感想。

==============================================================================================================================

在TI卓越工程师培养的8个月中，我在技术和知识方面收获颇丰，和胡艳艳、李瑞同学共同完成了AdaBoost人脸检测算法在TDA2x平台上的移植和优化，该系统框架不仅适用于各种视频图像中的人脸检测应用，同时也适用于其他任何物体的检测，例如，我后期利用该算法框架实现了汽车电子的行人检测应用。在团队中，我主要负责整体算法的研究以及DSP检测算法的实现和优化。

初始1个月的培训之后我们就进入各个部门、团队工作，刚进入团队我和另外两位一起实习的同学共同学习了一个多月的TI新推出的嵌入式视觉引擎EVE，从一开始对如何调试、如何硬件编程或如何连接仿真板这样的基础问题都满头雾水，到熟练掌握EVE性能并灵活编程实现各种适合EVE的算法。在这期间，TI为我们提供了丰富的学习资源，包括培训视频、用户手册和印度工程师的远程会议等，让我们学会了如何最大化利用资源学习新鲜知识，解决别人未曾解决的问题，克服新的挑战。在我们一起实现了EVE上的缩放算法，并达到很高的效率之后，我在导师的安排下开始了AdaBoot人脸检测算法的研究，并尝试从OpenCV将该算法移植到DSP上。起初接到这个任务时，我的内心是焦虑而担心的，首先，我没有系统学习过模式识别、计算机视觉方面的专业知识，其次，从重写纯C工程到DSP移植优化，这庞大的工作量和困难重重的道路让我感到害怕。但是我的导师首先给我指明了工作方向，然后和我共同制定了工作计划和deadline，将一个较大的工作分为若干个小部分，不仅帮助我更有条理地完成了工作，还让我在每完成一项工作后获得了自信和成就感。

我的导师之于我，就像灯塔之于船舶，她为我指明方向，但让我尝试自己的道路；她让我在繁多的工作中找到目标，但让我们探索实现目标的方法；她不会手把手地一步步教我，但她发掘了我自身的潜力，激励了我的信心；她和我们一同学习进步，我们请教她问题时，她总是热心解答。TI为我们配备了最优秀的导师，我在此由衷地感谢TI公司为我们提供如此卓越的培养条件。

参加了TI的卓越工程师培训计划之后，我从一个嵌入式的小白，成长为一个能够独立进行DSP开发并掌握C66x系列DSP的各种优化特性，并且熟悉开源计算机视觉库OpenCV及其嵌入式移植的流程和方法的初级工程师。在一次次的新任务中，我学会了如何去解决问题，将来即使遇到我从来没有碰到过的问题，也可以迎刃而解；在与周围同事的交流、配合中，我学会了明确分工和团队合作的精神；在每周一次的weekly report撰写中，我学会了反思和总结，为明天立下更完善的计划。

如果说我在TI学到的知识和技能占我的收获的50%，那么剩下的50%就是TI大家庭对我耳濡目染的无形影响。TI作为半导体行业的先驱和领头者，让我感受到了国际企业的风范和TI引领的行业趋势，以及她对教育事业投入的资金和心血，也展现了优秀跨国企业应有的风度和重视人才的精神，我们也是其中的受益者和贡献者。希望以后TI的卓越工程师培养计划越做越好，与西电共同培养出更多卓越优秀的人才。

ucd3138

xiaochun liu — Sun, 23 Feb 2014 02:17:00 GMT

那能提供ucd3138的LLC的范例代码吗？

TI“芯”鲜人的职位信息新鲜出炉

Echo Kou — Mon, 22 Apr 2013 01:28:23 GMT

针对2013届电子相关专业毕业生，以及在电子行业相关岗位上工作两年以内的“芯”鲜人的职位信息新鲜出炉！招聘的岗位包括TSA（助理技术销售工程师）、Apps（助理技术应用工程师）和R&D（研发工程师）。各个职位工作地点不同，欢迎大家访问招聘网站：http://t.cn/zWduKUR 。