新手请问 触摸屏无法使用

我刚开始使用TQ2440开发板，只是烧录了光盘里面的出产镜像uboot，         zImage_2.6.30.4_W35_256MB_20091030
文件系统无论是root_qtopia_2.2.0_2.6.30.4_256MB_20091216还是root_qt_4.5_2.6.30.4_256MB_20091216触摸屏在校准之后，开机触摸笔一点鼠标箭头就消失了，然后无法使用，请问这是硬件问题，还是驱动问题？

哪位能帮我解决一下吗？不胜感激啊，着急啊!

版主放假了？能帮小弟解决一下吗？我毕业就得靠这个了，但是想了很久都觉得不太对啊，难道是镜像有问题？

我以前也有这种情况。只能寄到厂家，再换个板子

你校准时是怎么操作的？

总算等到斑竹拉!我是按照触摸屏上的十字标志点的啊,这个没什么问题吧?

对了,我刚拿到板子的时候也有点问题,那就是点屏幕的时候鼠标会动,但是不管点什么地方,鼠标箭头的活动范围很小,有点乱串,迅速轻点鼠标活动的范围会大点,但是点两下,就会进入到中间的应用程序了,我以为是触摸屏校正问题,所以重新烧写了,结果就出现不能动的问题了

好像是你没有校正对导致的哦。

我不只较正一次啊，我校正了很多次，而且重新烧了再较也是一样，还有其他原因吗？

你把LCD连接线（就是白色那条扁平的线）重新接一下，然后再校正了测试。

非常抱歉，还是不好使，而且在串口中有很多命令：如cd,rm等命令都不好使，会出现-/bin/sh: xxxxxx:not found.我每次重新校验只能通过重新烧写文件系统。校验时，终端中有时会出现下列语句：
ts_calibrate:determinant is too small -- 0.000000
Calibration failed.
Could not read calibration:"/etc/pointercal"
明明校验了，为什么会没有pointercal?
我看了启动信息，大都好像挺正常，只有一个：hwclock:settimeofday()failed: Invalid argument
不好意思，还要劳驾老兄了……

你把开发板启动时的串口打印信息贴出来。
你烧写的镜像是天嵌科技提供的吗（包括内核、文件系统）？

Booting Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000 ... Copy Kernel to SDRAM done,NOW, Booting Linux......
Uncompressing Linux.......................................................................................................................... done, booting the kernel.
Linux version 2.6.30.4-EmbedSky (root@EmbedSky) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #13 Fri Oct 30 21:45:00 CST 2009
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: TQ2440
ATAG_INITRD is deprecated; please update your bootloader.
Memory policy: ECC disabled, Data cache writeback
CPU S3C2440A (id 0x32440001)
S3C24XX Clocks, (c) 2004 Simtec Electronics
S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: noinitrd root=/dev/mtdblock2 init=/linuxrc console=ttySAC0
NR_IRQS:85
irq: clearing subpending status 00000002
PID hash table entries: 256 (order: 8, 1024 bytes)
Console: colour dummy device 80x30
console [ttySAC0] enabled
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 60876KB available (3444K code, 374K data, 180K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 296 bytes
NET: Registered protocol family 16
S3C2440: Initialising architecture
S3C2440: IRQ Support
S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics
DMA channel 0 at c4808000, irq 33
DMA channel 1 at c4808040, irq 34
DMA channel 2 at c4808080, irq 35
DMA channel 3 at c48080c0, irq 36
S3C244X: Clock Support, DVS off
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz
s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
cfg80211: Calling CRDA to update world regulatory domain
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
yaffs Oct 30 2009 21:01:24 Installing.
msgmni has been set to 119
alg: No test for stdrng (krng)
io scheduler noop registered (default)
Console: switching to colour frame buffer device 40x15
fb0: s3c2410fb frame buffer device
backlight initialized
GPIO-Control initialized
PWM-Test initialized
adc initialized
s3c2440-uart.0: tq2440_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
s3c2440-uart.1: tq2440_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: tq2440_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
loop: module loaded
Driver 'sd' needs updating - please use bus_type methods
dm9000 Ethernet Driver, V1.31
Now use the default MAC address: 10:23:45:67:89:ab
eth0 (dm9000): not using net_device_ops yet
eth0: dm9000e at c4814000,c4818004 IRQ 51 MAC: 10:23:45:67:89:ab (EmbedSky)
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c2440-nand s3c2440-nand: Tacls=2, 20ns Twrph0=3 30ns, Twrph1=2 20ns
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 467 at 0x000003a60000
Bad eraseblock 841 at 0x000006920000
Bad eraseblock 1012 at 0x000007e80000
Bad eraseblock 1471 at 0x00000b7e0000
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000040000 : "EmbedSky_Board_uboot"
0x000000200000-0x000000400000 : "EmbedSky_Board_kernel"
0x000000400000-0x00000ff80000 : "EmbedSky_Board_yaffs2"
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: S3C24XX OHCI
usb usb1: Manufacturer: Linux 2.6.30.4-EmbedSky ohci_hcd
usb usb1: SerialNumber: s3c24xx
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
usbserial: USB Serial Driver core
USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver
s3c2410_udc: debugfs dir creation failed -19
s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes
mice: PS/2 mouse device common for all mice
TQ2440 TouchScreen successfully loaded
input: TQ2440 TouchScreen as /devices/virtual/input/input0
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
zc0301: V4L2 driver for ZC0301[P] Image Processor and Control Chip v1:1.10
usbcore: registered new interface driver zc0301
gspca: main v2.5.0 registered
usbcore: registered new interface driver zc3xx
zc3xx: registered
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: starting watchdog timer
s3c2410-wdt s3c2410-wdt: watchdog active, reset abled, irq enabled
mapped channel 0 to 0
s3c2440-sdi s3c2440-sdi: powered down.
s3c2440-sdi s3c2440-sdi: initialisation done.
s3c2440-sdi s3c2440-sdi: powered down.
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
Advanced Linux Sound Architecture Driver Version 1.0.18a.
No device for DAI UDA134X
No device for DAI s3c24xx-i2s
S3C24XX_UDA134X SoC Audio driver
UDA134X SoC Audio Codec
asoc: UDA134X <-> s3c24xx-i2s mapping ok
ALSA device list:
  #0: S3C24XX_UDA134X (UDA134X)
TCP cubic registered
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
lib80211: common routines for IEEE802.11 drivers
s3c2410-rtc s3c2410-rtc: setting system clock to 2120-11-23 02:59:50 UTC (466806694)
yaffs: dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
yaffs: auto selecting yaffs2
block 436 is bad
block 810 is bad
block 981 is bad
block 1440 is bad
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
Partially written block 392 detected
yaffs_read_super: isCheckpointed 0
VFS: Mounted root (yaffs filesystem) on device 31:2.
Freeing init memory: 180K
hwclock: settimeofday() failed: Invalid argument
usbcore: registered new interface driver rt73usb
usbcore: registered new interface driver zd1211rw
initializing s3c2440 camera interface......
s3c2440 camif init done
Loading OV9650 driver.........
OV9650 address 0x60, manufacture ID 0xFFFF, expect 0x7FA2
OV9650 address 0x60, manufacture ID 0xFFFF, expect 0x7FA2
No OV9650 found!!!
Try to bring eth0 interface up ...
ifconfig eth0 hw ether 10:23:45:67:89:ab
eth0: link down
ifconfig eth0 192.168.1.6 netmask 255.255.255.0 up
add default gw 192.168.1.2
Done
[16/Oct/1984:20:31:39 +0000] boa: server version Boa/0.94.13
[16/Oct/1984:20:31:39 +0000] boa: server built Jul 29 2009 at 14:27:34.
[16/Oct/1984:20:31:39 +0000] boa: starting server pid=478, port 80
Start Qtopia-2.2.0

这是nandflash引导的启动信息

hwclock:settimeofday()failed: Invalid argument
这句话是因为你没有设置系统的时间引起的，使用命令date设置时间，hwclock保存时间后，下次启动就不会有这句话了。（见TQ2440使用手册的5.1章节的内容）

你校正后串口显示什么信息？查看/etc/目录下是否存在pointercal文件？

cd命令在串口中怎么不能用？我无法进入etc目录啊