• ADuC7021 thermal performance

    Our customer want to analysis ADuC7021 thermal performance need know the
    case-junction temperature parameter. Would you please let me know the related
    information?
    1. Case to Junction Thermal resistance?
    2. How long is the life time…
  • Damaged Code on ADuC7021

    Hello,

    we are using a custom board with ADuC7021. We use page 120  as user space. This page is written every once in a while (say, every day 1 time)

    We had some user complains about losing settings. They probably turned off the device after erasing the…

  • ADUC7021 KEIL5 Project

    您好,我用keil5.25,做了一个简单的应用,然后rebuild all files之后,出现以下的error,麻烦告诉我怎么做?谢谢。如下:

    *** Using Compiler 'V5.06 update 6 (build 750)', folder: 'D:\Program files\KEIL\ARM\ARMCC\Bin'
    Rebuild target 'Target 1'
    assembling ADuC702x.s...
    compiling UART2…

  • I/O port of ADUC7021

    Hello,

    I use pin 3 of port 1 (P1.3) on my products and at power up, the port is in high impedance, everything is ok.

    Now we received a new reel of aduc7021 and this port (pin 1.3) now emit a glitch at power_up : 2V during 17ms with a pull down of 68Kohm…

  • ADUC7021 pll问题

    大家好,aduc7021英文手册里谈到时钟从内部晶振切换到外部晶振时有这样一段话(大概在第51页):

    External Crystal Selection

    To switch to external crystal, clear the OSEL bit in the PLLCON MMR (see Table 32). In noisy environments, noise might couple to the external crystal pins and PLL could lose…

  • ADUC7021 :general purpose register address.

    I am accessing ADUC7021 through I2C from a FPGA. I am able to read the version register,die temperature register. I want to access a general purpose register through the same I2C. How can I know the address of a general purpose register in ADUC7021?A

  • Ucos code run on aduc7021?

    Dears,

    Could you please help provid the ucos II/III code run on ADuC7021?

    Thanks a lot for your help!

    Taylor.

  • ADuC7021上电异常

    我在自己设计的电路上使用了ADuC7021,但是我发现在板子上电过程中7021有时(试了20次,有5次)并不能正常启动。

    具体表现为:

    • 程序没有运行;
    • 几乎所有I/O管脚(至少是我引出的管脚)输出都为高电平。
      我的ADuC部分的原理图如下

    图中+3.3V通过一磁珠连接了一个工控机的电源模块的3.3V输出。

    同时我发现:

    • 只有当板子的供电与电源模块一直相连,闭合电源模块上电时才会发生该异常;
    • 若电源模块已上电,通过拔插板子与电源模块的供电线的方式让板子上电则70…
  • ADuC7021 Intermittently comes out of reset.

    Hello team,

    We have a device that uses the ADuC7021.  We have recently released the device to production.  Now that large numbers of these devices are being manufactured, we are discovering that about 3-5% of them are not coming out of reset on power-up…

  • ADC is not working properly in ADuC7021

    I’m working on  ADuC 7021 microcontroller. But now I’m stucked with ADC reading. While reading the ADC channel directly it gives the correct count. But if I’m trying to read the ADC count on the timer ISR, some error occurred. Timer 0 (400ms)and timer…