急！430F6系列的RTC_C模块写不进值

只看该作者 · 2012-10-11 20:15

本帖最后由 hwk612167 于 2012-10-11 20:16 编辑

以下为官方例程部分，RTC_C肯定解锁了，控制寄存器能写，但年月日等寄存器都不能写，写了没反应，不知什么问题？百度搜了下，碰到我这中问题的有几个，如http://bbs.**/viewthread.php?tid=348265&page=1&extra=page%3D1#pid1390909

http://bbs.**/thread-325917-1-1.html

// Configure RTC_C
RTCCTL0_H = RTCKEY_H;                // Unlock RTC_C module
RTCCTL0_L |= RTCTEVIE | RTCAIE | RTCRDYIE; // Enable RTC time event, alarm event,
                                          // read ready interrupt
RTCCTL1 |= RTCBCD | RTCHOLD;          // RTC enable BCD mode, RTC hold

RTCYEAR = 0x2011;                      // Year = 0x2011 = 2011
RTCMON = 0x12;                         // Month = 0x12 = December
RTCDAY = 0x05;                         // Day = 0x05 = 5th
RTCDOW = 0x03;                         // Day of week = 0x03 = Wednesday
RTCHOUR = 0x24;                      // Hour = 0x12
RTCMIN = 0x59;                         // Minute = 0x57
RTCSEC = 0x55;                         // Seconds = 0x36

RTCADOWDAY = 0x3;                      // RTC Day of week alarm = 0x2
RTCADAY = 0x22;                      // RTC Day Alarm = 0x22
RTCAHOUR = 0x23;                      // RTC Hour Alarm
RTCAMIN = 0x45;                      // RTC Minute Alarm

RTCCTL1 &= ~(RTCHOLD);                // Start RTC calendar mode
RTCCTL0_H = 0;                         // Lock RTC_C module