麻烦帮忙推荐下MCU,要求如下:
1、内置AD通道数≥18(最好是16位AD,要求能达到千分之五精度);
2、SPI≥ 2路
3、I2C≥ 1路
4、串口≥5
5、USB接口≥1
6、具备浮点计算功能
7、最好带操作系统
8、有完善的参考设计
9、最好是非BGA封装
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