摘要
采用计算定时器周期寄存器值的方法设置TMS320C6713 DSP定时器,以精确控制D/A数模转换输出信号的频率或A/D模数转换的采样频率,结合C6713 DSP定时器寄存器和配置定时器的一般步骤,以及中断寄存器和可屏蔽中断发生满足的条件,编写了用两个定时器分别控制D/A和A/D的中断初始化程序,并在C6713 DSP硬件平台上进行了验证;结果表明:计算定时器周期寄存器值的方法正确,能够产生指定频率的信号或以指定频率对信号进行采样,控制方式灵活并且精度较高。
The initialization program of timer interrupt is written combining the general process to configure C6713 DSP timer register with the occurring condition of maskable interrupt. In the program, the value of timer period register is controlled to accurately control D/A output signal frequency or A/D sampling frequency. Finally, some experiments have done in DSP hardware platform. Experiment results show that the method controlling timer period register＇ s value is right, the A/D or D/A sampling frequency can be controlled, the control mode is flexible, and the control precision is more accurate.
出处
《计算机测量与控制》
CSCD
2008年第6期819-820,839,共3页
Computer Measurement &Control
基金
国家部委预研基金项目(51319030302)。
