Aiming at the problem that the current static electrocardiograph is large in size and inconvenient to carry for outpatient visits, a portable 12-lead ECG data acquisition system based on MSP430F1611 is designed. The system uses MSP430F1611 and high-speed 16-channel 24-bit high-precision A/D converter ADS1258, adopts SPI, I2C serial communication, and uses DMA controller to synchronously collect and transmit 12-lead ECG signals. The experimental results show that the expected goals are achieved. The system can be applied to portable multi-channel ECG machines, and can be connected to a computer for data processing, display, printing, analysis and diagnosis, which greatly facilitates ECG detection.
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