針對(duì)51單片機(jī)系統(tǒng)中常用的A/D轉(zhuǎn)換器價(jià)格高、精度低的缺點(diǎn),介紹TI公司的16 位的帶有I2C串行接口的A/D轉(zhuǎn)換器ADS1110的工作原理,給出ADS1110與AT89C51單片機(jī)系統(tǒng)的接口電路和軟件設(shè)計(jì)。實(shí)踐證明,ADS1110具有高性價(jià)比和實(shí)用性。
Abstract:
According to the disadvantages of high expense and low accuracy of the general A/D converter used in MCS51 microchip system,the principle and working process of a high accuracy 16-bit A/D conversion ADS1110 which has I2C bus and belongs to TI Company are proposed here as well as the interface of ADS1110 to AT89C51 and software list.It is proved to be high performance index and practicability.
摘要:介紹利用80C31單片機(jī)串行口、廉價(jià)的74HC164和74HC244集成塊實(shí)現(xiàn)多個(gè)LED顯示的一種簡(jiǎn)單方法,利用該方法設(shè)計(jì)的多路LED顯示系統(tǒng)具有硬件結(jié)構(gòu)簡(jiǎn)單、軟件編程容易和價(jià)格低廉的特點(diǎn)。關(guān)鍵詞:?jiǎn)纹瑱C(jī) 串行口 LED 顯示 80C31