1 硬件主要芯片
 CPU板的MCU和电源板的MCU通过SPI-0通信。
 1.1 CPU板
 1)ST10F276,16bit MCU
 2)K6R4016C1D-UI10,Samsung 256K x 16 SRAM,Event Memory
 3)K9F1G08UOA-PCB0,Samsung 128M x 8 NAND Flash,Monitoring Memory
 4)25LC320,Microchip 4K x 8 EEPROM,Settings Memory
 5)ASDX001D44R,4个1-wire Honeywell压力传感器,传感器的1-wire连到ST10F276的ADC输入pin;或者Sensortechnics SQ276,SQ276通过SPI-0连接到ST10F276
 6)BSDX0811BARO-X,1个1-wire SensorTechnics气压计
 7)ARF34,Adeunis RF34,射频433 MHz(NFC的频率是13.56 MHz),UART接口,Alarm报警器
 1.2 电源板
 1)PIC18F6622,8bit MCU,64K Flash
 2)FT2232,USB转2个串口,分别到电源板MCU的RX-UART-PIC和TX-UART-PIC,以及到CPU板MCU的RX-UART-ST和TX-UART-ST
 3)CY7C67300,SPI to 2-port FS USB Host,外接U盘;通过SPI-1连接到CPU板的ST10F276
 1.3 Powerpack板
 1)PIC18F43K22T
 2 URLs
https://www.medtronic.com/us-en/e/open-files/thank-you.html
 3 Abbreviations
 ASDX001D44R:Amplified version of SDX series sensor
 PB560:Puritan Bennett
 psi:Pounds per square inch,1bar = 100kPa,1bar ≈ 14.5psi