Use Parallel Printing Interface to Receive Data
Bao Hao-ming · Acta Scientiarum Naturalium Universitatis Neimongol · 2000
In control system,it is necessary to set A/D converter for sampling process signal. But in ordinary computer there is not this parallel port. One method to solve the problem is replacement of parallel port by special printing port.We use the printing port to carry on A/D convert with 12-bit accuracy.