TMS320C55X series DSP applied in communication and individual consumption domain
has many merits of low power consumption and the capability of realtime processing.Combining CPLD
a portable ultrasonic flowmeter is given
which uses TMS320VC5509A DSP and μPSD3422 SOC(system on chip) as manipulative unit.The flowmeter adopts time difference measurement to figure out the instantaneous flux of the liquid
and then total flux with integralis got.The results demonstrate that the system runs steadily and the measuring question of liquid flux is accomplished perfectly.