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cc2530内置的温度传感器数据怎么处理?

时间:12-22 整理:3721RD 点击:

ADCCON2。Sdiv[1:0]是什么意思?这个怎么使用的啊,还有内置温度传感器怎么调整啊?

简单来讲,设置的是通过多少次采样数据来生成采样值。采样数越多的话代表可以得到更高的采样精度,但是需要更多的采样时间。

A simple approach to a ADC is the sigma delta as used in the Ti parts. The approach is to sample a single bit at a high rate (this is fixed)  thus spreading the noise over a wide bandwidth and then take some number of these samples to form (filter)  the output. The more samples used to form the output the lower the noise permiting more bits of resolution (there is no point to having more bits if the lower LSBs are in noise). You can choose 64, 128, 256, or 512 samples (descimation rate) to form the output, The more samples the higher the resolution but the conversion takes longer so the overal sample rate is lower.  

你指的调整是什么? 是calibration吗?

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