串口流控在DSP中的应用与实现

摘要

Based on short wave wireless communication, through the DSP serial port control Collins Modem modulation to send large quantities of data, there is a problem of data loss.The reason for this result is not consistent across the MODEM baud rate, it makes the Modem buffer overflow, therefore, in the circuit using DSP plus TL16C752B serial hard flow mode for data transmission.Combined with short wave air link experiment, the continuous transmission of large data, the Modem demodulation through the serial port to the DSP, the experimental verification of the data loss problem does not exist.%基于短波无线通信的目的,通过DSP串口控制Collins Modem调制发送大批量数据,存在数据丢失问题;导致此原因是MODEM两端波特率不一致,使Modem缓冲区溢出丢数,所以在电路上采用DSP加TL16C752B串口硬流控方式进行数据传送.结合短波空中链路实验,连续发送大数据,经Modem解调通过串口上送到DSP,经实验验证未存在数据丢失问题.