On Chip RAM 配置
The advantage is that you might not need any external RAM at all if you can get away with a very small amount on chip.
其好处是，如果您可以在芯片上拥有少量内存，就可能不再需要任何外部RAM。
To set the proper parameter of register and on-chip ram of TMC428, it can make TMC428 control three stepper motor in the same time, and realize three-axis control system.
通过设置TMC428内部参数寄存器和片内ram的值，可使TMC428能够同时控制三个步进电机，实现三轴控制系统。
A brief description is made in regard to internal and external RAM data - holding on power - off of single chip computer.
本文就单片机系统片内和片外ram的数据的掉电保持做了简单介绍。
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