Implementation and Optimization of V.17 Modem Based on Blackfin
This paper introduces ITU-T V.17,presents an implementation of V.17 soft modem based on Blackfin532+uClinux,and proposes an optimization method according to the characters of Blackfin532,such as processor features,tiered storage architecture and parallel instructions.The optimized modem's occupation of the system resources is reduced,and the performance is about 3 times better.Now it is applied to the fax modem in the voice gateway.