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CCS编写CC3200的ADC程序计算浮点数出错

Other Parts Discussed in Thread: CC3200

在程序中执行如下这句话,只会输出0.000000

UART_PRINT("\n\nVoltage is %f\n\n",(((float)((***[4+index] >> 2 ) & 0x0FFF))*1.4)/4096);

但是单独输出(***[4+index] >> 2) & 0x0FFF的话,结果就是对的。

后来测试:

int i = 5;

UART_PRINT("i is %f\n", i);

也输出错误,输出0.000000