FAQ: [#6205] In Capacitance Touch testing, when touch board ,nothing show.(2010)

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[#6205] In Capacitance Touch testing, when touch board ,nothing show.

Submitted By: angelia wu

Open Date

2010-08-25 23:52:17     Close Date

2010-10-15 04:56:39

Priority:

Medium     Assignee:

Bob Liu

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2010R1     Release:

Blackfin Linux:2010R1

Category:

N/A     Board:

STAMP

Processor:

BF537     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Fixed

Uboot version or rev.:

    Toolchain version or rev.:

svn-4681

App binary format:

N/A     

Summary: In Capacitance Touch testing, when touch board ,nothing show.

Details:

 

In Capacitance Touch testing, when touch board ,nothing show.

And when i reset AD7142, the follow error will happen.

 

ad714x_captouch 0-002c: I2C read error

Event: time 474846.605501, type 1 (Key), code 260 (Btn4), value 1

Event: time 474846.605517, -------------- Report Sync ------------

 

 

Hit any key to stop autoboot:  0

Using bfin_mac device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage'.

Load address: 0x1000000

Loading: #################################################################

         #################################################################

         #################################################################

         #################################################################

         ###############################################################

done

Bytes transferred = 4728487 (4826a7 hex)

## Booting kernel from Legacy Image at 01000000 ...

   Image Name:   bf537-2.6.34.5-ADI-2010R1-pre-sv

   Created:      2010-08-26   3:31:30 UTC

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    4728423 Bytes = 4.5 MiB

   Load Address: 00001000

   Entry Point:  001ab684

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 001ab684

Linux version 2.6.34.5-ADI-2010R1-pre-svn9094 (test@uclinux41) (gcc version 4.3.5 (ADI-trunk/svn-4681) ) #108 Thu Aug 26 11:31:25 CST 2010

register early platform devices

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Limiting kernel memory to 56MB due to anomaly 05000263

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x0011cef0

  rodata    = 0x0011cef0-0x0017c6a0

  bss       = 0x0017d000-0x0018d5ac

  data      = 0x0018d5ac-0x001a0000

    stack   = 0x0019e000-0x001a0000

  init      = 0x001a0000-0x008c8000

  available = 0x008c8000-0x03800000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Blackfin support (C) 2004-2010 Analog Devices, Inc.

Compiled for ADSP-BF537 Rev 0.2

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 125 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

  External memory: cacheable in instruction cache

Data Cache Enabled for CPU0

  External memory: cacheable (write-back) in data cache

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 14224

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600 ip=10.100.4.50:10.100.4.174:10.100.4.174:f

PID hash table entries: 256 (order: -2, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 47784k/65536k RAM, (7328k init code, 1135k kernel code, 525k data, 1024k dma, 7740k reserved)

Hierarchical RCU implementation.

NR_IRQS:138

Configuring Blackfin Priority Driven Interrupts

console [ttyBF0] enabled, bootconsole disabled

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (35 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

bio: create slab <bio-0> at 0

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc01400

Switching to clocksource bfin_cs_cycles

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

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

msgmni has been set to 93

io scheduler noop registered

io scheduler cfq registered (default)

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mii_bus: Can't get IRQ 65535 (PHY)

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=24)@sclk=125MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

ad714x_captouch 0-002c: found AD7142 captouch, rev:2

input: Unspecified device as /devices/virtual/input/input0

ad714x_captouch spi0.5: fail to detect AD714X captouch, read ID is ffff

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c /dev entries driver

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1970-01-06 11:48:15 UTC (474495)

IP-Config: Complete:

     device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

     host=bf537-stamp, domain=, nis-domain=(none),

     bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

dma_alloc_init: dma_page @ 0x0292c000 - 256 pages at 0x03f00000

Freeing unused kernel memory: 7328k freed

                           _____________________________________

        a8888b.           / Welcome to the uClinux distribution \

       d888888b.         /       _     _                         \

       8P"YP"Y88        /       | |   |_|            __  __ (TM)  |

       8|o||o|88  _____/        | |    _ ____  _   _ \ \/ /       |

       8'    .88       \        | |   | |  _ \| | | | \  /        |

       8`._.' Y8.       \       | |__ | | | | | |_| | /  \        |

      d/      `8b.       \      \____||_|_| |_|\____|/_/\_\       |

     dP   .    Y8b.       \   For embedded processors including   |

    d8:'  "  `::88b        \    the Analog Devices Blackfin      /

   d8"         'Y88b        \___________________________________/

  :8P    '      :888

   8a.   :     _a88P         For further information, check out:

._/"Yaa_:   .| 88P|            - http://blackfin.uclinux.org/

\    YP"    `| 8P  `.          - http://docs.blackfin.uclinux.org/

/     \.___.d|    .'           - http://www.uclinux.org/

`--..__)8888P`._.'  jgs/a:f    - http://www.analog.com/blackfin

 

Have a lot of fun...

 

 

BusyBox v1.16.2 (2010-08-26 11:29:23 CST) hush - the humble shell

 

root:/> PHY: 0:01 - Link is Up - 100/Full

 

root:/> modprobe ad7142.ko

modprobe: module ad7142.ko not found in modules.dep

root:/> event_test /dev/input/event0

Input driver version is 1.0.0

Input device ID: bus 0x18 vendor 0x0 product 0x7142 version 0x2

Input device name: "Unknown"

Supported events:

  Event type 0 (Sync)

  Event type 1 (Key)

    Event code 257 (Btn1)

    Event code 258 (Btn2)

    Event code 259 (Btn3)

    Event code 260 (Btn4)

Testing ... (interrupt to exit)

 

 

Follow-ups

 

--- Bob Liu                                                  2010-09-13 06:56:00

fixed.

For ad7147 test we must set s4.2 on and other positions off.

and for ad7142 test the driver only support btn1-4.

 

--- angelia wu                                               2010-10-15 04:56:39

Now the case is ok and i closed it.

 

 

 

    Files

    Changes

    Commits

    Dependencies

    Duplicates

    Associations

    Tags

 

File Name     File Type     File Size     Posted By

kernel.cap_touch.config    application/x-config    37944    angelia wu

user.cap_touch.conig    application/octet-stream    49083    angelia wu

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