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簡介： MC9S12G系列是經過優化的汽車級16位微控制器產品線，具有低成本、高性能、引腳數量少的顯著特點。MC9S12G系列適合需要CAN或LIN/SAE J2602通信的一般汽車應用。 基本特性： MC9S12G系列具有16位MCU的所有優點和功效，同時保留了飛思卡爾現有8位和16位MCU系列用戶所享有的低成本、低功耗、電磁兼容性(EMC)以及代碼效率等優勢。 MC9S12G128/96和MC9S12GN32/16是MC9S12G系列在市場上最先推出的四款主要主品。 特點包括： S12 CPU內核，25MHz總線 片上穩壓器調節輸入電源和所有內部電壓 方案特點： The MC9S12G128 Controller Board is designed to a drive 3-phase BLDC motor, enabling implementation of motor control techniques: • Sensorless: — Back-EMF signal sensing using an MCU ADC module — Back-EMF zero-cross signal monitoring • Sensor based: — Hall sensor signal monitoring On-board UNI-3 interface enables control of the BLDC motor power stage. The LIN and CAN communication interfaces connect the board to the other automotive network nodes. The USB interface is targeted at FreeMASTER PC-based application control. The MC9S12G128 Controller Board features follows: • MC9S12G128 microcontroller, 100 LQFP package • BDM interface for MCU code download and debugging • MC33905 System-basis chip (power supply, connectivity) • Motor control interface: — UNI-3 — MC33937A predriver — Hall sensors • Connectivity interface: — LIN (MC33905) — CAN (MC33905) — USB interface • LEDs: — Power-on indicators — Phase A, B, C PWM control signals — Phase A, B, C zero-cross — Hall sensor outputs — Fault monitoring — SBC safe mode — User application • Rotary encoder switch for an application control • On-board PWM dead time generation • MCU pins accessible via pin headers 
圖1 參考框圖
圖2 參考原理圖1
圖3： 參考原理圖2
圖4： 參考原理圖3
圖5 參考原理圖4 詳情請見： 
MC9S12G128MCBUG.pdf
(1.53 MB)
(中電網) |
