• ADE7878A有功功率,无功功率,功率因数寄存器跳动

    未带负载,有功功率,无功功率默认很小,寄存器值也很小.但会频繁跳动,我读取寄存器值,结果为0xFFFFFFFX这么大,请问这种情况是我的初始配置出错了吗?

    日志如下:

    [2018/8/6 15:26:37] frequency is 4998 Hz

    [2018/8/6 15:26:38] a_vrms_in is 218365 mV

    [2018/8/6 15:26:38] b_vrms_in is 219075 mV

    [2018/8/6 15:26:38] c_vrms_in is 222085…

  • Simulation of AD8066 with downloaded model

    I downloaded a pspice model of AD8066 from AD website. Using that I tried to implement a a simple amplifier circuit of gain +2 and the transient time analysis gave correct response. Now when I am trying AC sweep/noise analysis my noise profile is 100…

  • 2008-10-17 15:15:09     Registering a GPIO IRQ on the PPI port?

    2008-10-17 15:15:09     Registering a GPIO IRQ on the PPI port?

    Frank Van Hooft (CANADA)

    Message: 63864   

    I'm receiving data into the BF537 PPI port using 2 framesyncs (FS1 & FS2) under 2008R1.5. This is all going nicely.

    However, I also need…

  • 2009-07-02 15:39:15     KERNEL Driver FOR THE ADV7391BCPZ Video Decoder chip

    2009-07-02 15:39:15     KERNEL Driver FOR THE ADV7391BCPZ Video Decoder chip

    Kim Axelgaard Jensen (UNITED STATES)

    Message: 76704   

    Hi,

    does any one know if a driver exist for the ADV7391BCPZ ?

    Thanks,

    Kim Jensen

    QuoteReplyEditDelete

    2009-07-02 15…

  • 2009-09-15 15:30:58     BF561 Linux kernel upload failure - Minicom / Ymodem / Kermit. Transfer no worky

    2009-09-15 15:30:58     BF561 Linux kernel upload failure - Minicom / Ymodem / Kermit. Transfer no worky

    Mario Valenta (UNITED STATES)

    Message: 79939   

    BF561EZkit.  Das U-boot installed, i can boot it and see u-boot menu using minicom. 

    I've read this…

  • 2011-01-15 15:46:04     drivers/char/test/built-in.o: No such file: No such file or directory

    2011-01-15 15:46:04     drivers/char/test/built-in.o: No such file: No such file or directory

    Carl Berglund (SWEDEN)

    Message: 97469   

    Hi, im trying to add the simple-gpio.c driver to linux kernel and I follow the guide in   docs.blackfin.uclinux.org/doku…

  • 2009-08-15 22:20:15     How to boot the kernel compressed with BZIP2?

    2009-08-15 22:20:15     How to boot the kernel compressed with BZIP2?

    Zhi Qiang Zhang (CHINA)

    Message: 78924   

    Hi,

    I check out the most updated kernel(REV:8693) and u-boot, and compiled it for bf537-stamp, I upgrade the u-boot to bf537-stamp board and…

  • 2009-02-06 09:15:15     Valid link detection in SMSC 9x18 Ethernet driver

    2009-02-06 09:15:15     Valid link detection in SMSC 9x18 Ethernet driver

    Appalayagari Sreedhar (INDIA)

    Message: 68993   

    Hi,

    I am working with custom board with BF533 , SMSC 9215 ethernet chip is interfaced with BF AMS space.

    I am uisng the smsc driver…

  • Suggestions for Charging 15S Li-Ion battery to 63Volts !!

    I recently bought LT8391 demo board but made a miscalculation; in conjuction with LTC6812 which is 15S balancer /  AFE, the output of the LT8391 is not enough to charge the battery to 63Volts which is 4.2V x 15. My input is 48Volts and intention was to…

  • ADT7420 reading under Linux

    Q

    We design a new pcb with ADT7420.


    We verify  :

    -          the power supply : OK (3.3V)

    -          I2C waveform : OK (verify with oscilloscope)

    -          we can read other component connected to the same I2C bus example an
    EEPROM and a Demodulator.

    -          No communication…