Summary of the first stage research

from 10 number Fifth has been in the past two business days today. The original research mission has three main items: liquid level measurement to determine software program design, sound source localization DSP Development Board plate, debug LCD and Touch panel.

The first week was a smooth job. Each progress is synchronized, the level measurement programming is carried out in order, and the data signal measurement is carried out periodically. DSP Development Board schematic design, including power supply design, audio processing circuit design, DSP configuration debug circuit, SDRAM data storage circuit design, and serial communication interface design. LCD LCD screen display debugging completed successfully.

But later due to the Avrjtag ice simulator damage, the Level measurement program Design task was interrupted, fortunately after many days of research, find information, successfully repaired the emulator. Really happy, save a lot of money.

Also learn how to make emulators and repair emulators.

During the attempt to repair the emulator, the main focus on the DSP Development Board PCB design, plate-making document design in two weeks to complete the smooth, still smooth. Just during this time, the touch screen debugging work delayed, yesterday afternoon plus a night to figure out the touch screen principle and calibration algorithm, after this morning's test, finally determined the resistance touch screen touch ad resistance distribution law, and LCD screen resolution of the corresponding relationship.

Now two weeks later, the first job was left behind, more serious. The next phase is focused on the first task, and the DSP program design Research, and then encouraged.

This article from "Together already" blog, declined reprint!

Summary of the first stage research