Other Parts Discussed in Thread: MSP-EXP430FR2355, MSP430FR2355,
我按照导引中的描述，将硬件按其连接，并在VBAT-PGND之间接入10V电源，随后使用Micro-USB线连接电脑与评估板，GUI图形界面上出现绿灯，左下角显示硬件已连接，串口波特率9600，此时我点击Read All Registers，等待超过三分钟，都没有显示读取寄存器，D6指示灯也没有亮过
我按照导引中的描述，将硬件按其连接，并在VBAT-PGND之间接入10V电源，随后使用Micro-USB线连接电脑与评估板，GUI图形界面上出现绿灯，左下角显示硬件已连接，串口波特率9600，此时我点击Read All Registers，等待超过三分钟，都没有显示读取寄存器，D6指示灯也没有亮过
The equation for converting from electrical frequency in Hz to motor mechanical frequency in RPM is:
The FG_DIV allows you to divide the FG signal by the number of motor pole-pairs, which would give you rotations per second (RPS). To get RPM, you would then multiply the RPS value by 60.
Important to distinguish between motor poles or pole-pairs.
Generally, motors are designed with even numbers of poles, so I think your motor probably has 7 pole-pairs, or 14 poles. In this case, you would choose the "Divide by 7 (14-pole motor mechanical speed)" option for FG_DIV. After this, your FG pin would be outputting the motor speed in RPS.
The MCF8316A doesn't have an option to output FG in RPM, so you will have to monitor the FG frequency and convert RPS to RPM yourself.