用的是官方例程的代码，如下
#include <msp430g2553.h>
void main(void)
{
WDTCTL = WDTPW +WDTHOLD; // Stop Watchdog Timer
if (CALBC1_1MHZ ==0xFF || CALDCO_1MHZ == 0xFF)
{
while(1); // If calibration constants erased
// do not load, trap CPU!!
}
/*/1Mhz
BCSCTL1 = CALBC1_1MHZ; // Set range
DCOCTL = CALDCO_1MHZ; // Set DCO step + modulation */
/*//8Mhz
BCSCTL1 = CALBC1_8MHZ; // Set range
DCOCTL = CALDCO_8MHZ; // Set DCO step + modulation */
//12Mhz
BCSCTL1 = CALBC1_12MHZ; // Set range
DCOCTL = CALDCO_12MHZ; // Set DCO step + modulation*/
/* //16Mhz
BCSCTL1 = CALBC1_16MHZ; // Set range
DCOCTL = CALDCO_16MHZ; // Set DCO step + modulation*/
P1DIR |= 0x13; // P1.0,1 and P1.4 outputs
P1SEL |= 0x11; // P1.0,4 ACLK, SMCLK output
while(1)
{
P1OUT |= 0x02; // P1.1 = 1
P1OUT &= ~0x02; // P1.1 = 0
}
}
不管选择哪种模式，实际引脚用示波器看总是差10倍，比如设置DCO为1MHZ，则示波器测得就是100K，以此类推，都是差10倍，请问是为什么？
谢谢！
