Development of an ultrasonic hyperthermia instrument's software based on ARM32 microprocessor is here introduced. The system integrates the embedded SOC system, memory system, PWM system, A/D system, JTAG debug system, UART communication system, I/O system and GUI system (include LCD, keyboard) in one PCB board. It effectively completes the control and constance of temperature through the improved PID algorithm, and the instrument miniaturization. Experiments have proved that the system accords with the design requirements.
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