试编程应用DAC0832输出锯齿波如图所示，锯齿波的频率为1000HZ（即周期为1ms），系统晶振为12MHZ。(假设DAC0832的芯片地址为A000H)(As shown in the DAC0832 output sawtooth wave, the frequency of the sawtooth wave is 1000HZ (that is, the period is 1ms), and the system crystal oscillator is 12MHZ. (assuming that the chip address of DAC0832 is A000H))