Other Parts Discussed in Thread: MSP430G2553 将下面的代码屏蔽后,串口正常输出,
CCR0 = 500-1; // 500ns CCTL0 = CCIE; // CCR0 interrupt enabled TACTL = TASSEL_2 + MC_1 + TAIE; // SMCLK, upmode, interrupt
将代码解屏蔽就会输出固定字符如:
9A CA CA CA CA CA CA CA CA CA CA CA CA CA CA CA…
Other Parts Discussed in Thread: MSP430G2553 今天专门对MSP430G2553与G2452两款单片机(就是LaunchPad带的哪两个)做了内部的DCO频率测试,结果让我很是迷茫,两个单片机只有G2452可以产生较准确的1MHz的频率,G2553根本就没法产生1MHz的频率,而且也无法按着1MHz,8MHz,12MHz,16MHz的设定来产生。我用的是P1.4口输出SMCLK,用示波器测量其频率。对频率的初始化程序为
void MCU_clk_init…