Led Matrix 8 parallel data transfer 8 bits, scan the external columns. Protues 7.5 simulations.

51单片机和12位ADC tlc2543的加上12864液晶和12位DAC7611以及矩阵键盘的连调程序，调试已通过，在硬件电路也调试通过，精度很高。-51 single and 12-bit ADC tlc2543 the plus 12864 and 12-bit DAC7611 and the transfer matrix keyboard with the program, debugging has passed, the hardware circuit debugging, hi

A one-dimensional transfer matrix method to calculate the phonon crystal structure, Pisarenko harmonic decomposition algorithm, MinkowskiMethod algorithm.