我编写的软件运行在dsp5000的ccs下，在 dsk5402评估板上运行，可以实现数字电话的功能。包括dtmf的软件产生等等。-I write software that runs on the dsp5000 ccs, in dsk5402 Evaluation run, can achieve a digital telephone functions. DTMF including the election of the software.