ADI 微转换器突破性的技术ADI

简介：ADI 微转换器突破性的技术

问：我想应用ADUC812中转换的DMA功能，设计外部硬件时应注意些什么谢谢！
答： The DMA requrement is need external components and RAM. You just need to set one bit inside the ADCCON2 register. There is an exanmple on the ADI web that you can reference to the design.

问：他对嵌入系统和普通的工控机的应用有好处吗？他的应用方向是哪个方面，是电压的转换吗？
答： Yes, it"s just a kind of embedded system. It"s can be used for voltage to digital conversion, but not only. You can use it for other application including RTD, strain gauge, and so on. Meanwhile, as it integrate DAC on chip, you can also do some

问：在掉电模式下，复位后的初始化是否和普通8051周期、功耗相近？
答： If you mean MCU, then it"s right.

问：当ADuC812用在工业控制系统，DAC的输出端如何和控制中心相连？控制的距离有多远？
答： You can connect them directly, but depend on its load, it"s same story for distance. You may need buffer to drive other circuits.

问：能否介绍一下有关在光电转换和信号接受、监测方面的有关应用
答： If you have optical products such as EDFA or transpond design in your hands. It is better to use ADuC812 to design  the control circuit in your system.

问：有人告诉我ADmC812有加密位来限制对Flash/EE程序存储器和数据存储器的访问。为什么我在ADmC812数据手册中找不到关于该特征的任何介绍？
答： The ADuC812 does not support the security bit. But for other chips, we support 3 levels security. All of these are on the daat sheet.

问：在ADmC812中，P1口主要用于模拟输入，我能把P1口的引脚用作数字输入/输出吗？

答： it can only be used as input (analog or digital).

问：What programming language does ADuC812 support?
Is it compatible with the standard 51 MCU?
答： It support C program, assembler, PL/M.
Yes it"s compatible with standard 51 MCU.

问：我怎样计算在给定条件下ADmC812消耗的总功率？
答： You should add MCU core power assumption, add ADC, add DAC, and voltage reference assumption. It should be calculated under your certain situation: such as different power supply (3v or 5v), different work mode (normal or idel), and so on. The rough workin

问：DAC如果要接平滑滤波器，请问有何要求：直接或间接，阻抗匹配等？
答： Normally you need not use filter after DAC as its work frequency is low. But you really need it, no special request. (please contact your local ADI office for further support)