• ADUC841

    1.Whether the QuickStart Plus development system provides a USB port for connecting to a PC.？

    2.When I use UART serial port for normal UART communication, online debugging with PC side is not available, right?

    3.If the debug port is used as a communication…

  • ADUC841

    Is the UART serial port of the product a dedicated debugging port? Is the UART serial port occupied when communicating with external devices?Also can realize the program In-Circuit Serial Download Access?

  • ADUC841: FAQ

    FAQ

  • aduc841 eeprom

    Q 

    How to configure ADUC841 to write and read external EEPROM

     

    A 

    >Config CFG841 = 1 won't influence EEPROM, but will influence the stack.
    >The default value of CFG841 is 10H, then the stack rolls over from SPH/SP =
    00FFH to 0100H.
    >But you…

  • ADuC841 alternate SPI pins

    Is just setting CFG841.1 (MSPI) enough to use the alternate SPI pins ?  The datasheet is a bit unclear about this, it reads like the I2C needs to be enabled (and correctly set up ?) of that to work too ?  I'm trying to use SPI at P3.3-P3.5 without any use…

  • EVAL-ADUC841 A4 Schematics

    Q 

    Got the ADuC841 MicroConverter SAR Evaluation Board Rev.A4 delivered but there only seem schematics for Rev. A3
    ( https://www.analog.com/media/en/technical-documentation/evaluation-documentation/151851ADuC_SAR_PCB_A3.pdf )

    Is there updated version of…

  • ADuC841 PWM: random full duty cycle periode

    Hello everybody! 

    I'm working with the ADuC841's PMW on the "Single Variable Resolution" Mode on pins P3.4 and P3.3 (configured in sfr CFG841) and I'm having an awkward malfunctioning. 

    Periodically PWM output presents periods where…

  • Can I use EWAIT register on ADuC841?

    Q 

    I tried to vary EWAIT register, but without success. In the ADuC841 datasheet
    on page 18 EWAIT register is mentioned only once. In the SFR table on page 22
    there is no EWAIT register. Location 0x9F marked as "not used". Does really

    …

  • EVAL-ADUC841 A4 Schematics 

    Got the ADuC841 MicroConverter SAR Evaluation Board Rev.A4 delivered but there only seem schematics for Rev. A3
    (  https://www.analog.com/media/en/technical-documentation/evaluation-documentation/151851ADuC_SAR_PCB_A3.pdf )

Is there updated version of…

  • ADuC841 PWM: setting duty cycle to zero

    Hello everybody,

    I'm new to the ADuC841, my prior experience is with Cortex-M based microcontrollers.

    I'm using ADuC841 with the dual 8-bit PWM mode on pins P3.4 and P3.3 (configured in sfr CFG841). 

    For a simple 50% duty cycle with full 8-bit…