Design of 16-channel data acquisition system based on ADC0809 and 51 single-chip microcomputer

仁可水北

Design of 16-channel data acquisition system based on ADC0809 and 51 single-chip microcomputer [Copy link]

Design a 16-channel data acquisition system (using ADC0890, 8-bit CPU) Requirements: ① The input signal is 0-5V; use the query method to read: get the A/D conversion number; ② Use Protel software to draw the principle circuit diagram of the data acquisition board.

damiaa

Why do we still need ADC0809? You can find an ADC in any microcontroller, many of which are 12-bit. STC has one too.

damiaa

Even if you really want to connect an external ADC, you can use SPI or I2C interface. Parallel interface is much more troublesome. How big is the site?

swustlx86

This should be a course design.

仁可水北

damiaa posted on 2020-6-16 17:05 Even if you really want to connect an external ADC, you can use SPI or I2C interface. The parallel interface is so troublesome. How big is the site.

The school's course design

仁可水北

swustlx86 posted on 2020-6-16 17:24 This should be a course design

Yes: Sad:

dcexpert

damiaa posted on 2020-6-16 17:05 Even if you really want to connect an external ADC, you can use SPI or I2C interface. Parallel interface is more troublesome. How big is the site.

I guess the teacher is still using questions from many years ago, which are somewhat out of touch with current technology.

damiaa

The course design also needs to be improved and made more practical.

cat3902982

Although the technology is different, the core things are still the same.