• 2011-10-20 06:40:40     undefined reference to `Ret_Add'

    2011-10-20 06:40:40     undefined reference to `Ret_Add'

    william pagnon (AUSTRALIA)

    Message: 104043   

    Hi,

    I don't know where this linking error come from:

    make

    bfin-elf-gcc -g -mcpu=bf561 -mmulticore -mcoreb -mlong-calls -Wall -save-temps …

  • Request the schematic review with AD9251-80 and ADA4937-1

    Hi,

    My customer wnats to get your advice about their schematic with AD9251-80 and ADA4937-1.

    They used AD9251-65 and ADA4937-1 in their system, but now they will change the sampling frequency of their system.

    So they need your help.

    The sampling frequency…

  • ADIS16470 - exceeding 40 g

    Hello,

    I am building a model rocket for an extracurricular project at my school and the rocket will peak at 60 (!) g of acceleration. I wanted to know if the behaviour of the ADIS16470 IMU or any other 40 g accelerometer for that matter was known after…

  • RE: 40 reference clock for AD9913 DDS

    Hi,

    There is no minimum or maximum frequency value for the external crystal according to the data sheet but the typical 25MHz value is required as the circuitry within the device is tuned to this specific frequency. Using different frequency value will…

  • 关于AD9258/AD9251的部分数据位不输出的问题


    故障现象:

    a、项目中使用AD9258-105芯片,上电默认不进行任何配置时,通道A或通道B的某些位没有输出(特别是低几bit,比如D0~D5。具体是哪些位,无规律),电压固定在0.2V左右;

    b、个别板卡又工作正常;

    检查步骤:

    1、怀疑芯片焊接问题,于是取下重新焊接。重新焊接后,无输出的几个bit可能会有所改变,也可能故障依旧;

    2、更换AD9251-80芯片,也可能会出现部分低几个bit无输出的现象(明显感觉,AD9251-80芯片所有bit都能输出信号的可能性大的多);

  • AD9272BSVZ-40

    Hello,

    I´m using the High speed ADC  "AD9272BSVZ-40", i want to know if it´s possible to use a clock oscillator of 50 MHz , or the maximum frequency of the clock oscillator has to be 40 MHz.

  • 40 bits accumulator

    Hello

    How can I use Blackfin 40 bits accumulator.

    Can I use it in C, or must I use assembler.

    Avinoam

  • AD9237-40 power consumption

    Hello

    We check power consumption of AD9237-40 both power scaling enable and disable .
    Datasheet figure 43 and 44 describle only power consumption by 10MSPS at power scaling disable and enable.
    Please let me knoe about power consumption when we use  AD9237…

  • Push/Pop 40-Bit registers

    Hi,

    I try to find a good way to save and restore 40-Bit register values (floating point in f0-f15) during an interrupt service routine.

    My audio calculations are done in 40-Bit floating point, my SPI communicates with a microcontroller.

    The SPI end…

  • 40 bit float in VDSP++

    VisualDSP++ 5.0 C/C++ Compiler Manual for SHARC Processors describe why 40 bit operation is absent.

    I want to debate about this.

    As datasheet is written:

    Problem 1

    Where possible, the compiler will attempt to perform constant folding (the simplification…