[问答]

RTCC未使用MC代码示例运行

问答对人有帮助，内容完整，我也想知道答案 0 您好，我有一个PIC32 MX795F512L在USB启动板运行在MPLABX 3.50与XC32 V1.40编译器。我正在运行一个timeJordDebug代码示例，我在这里找到了http://vi.ECe.CONELL…xAMPLE／PLBILIG/I，将C文件（如下所示）粘贴到MPLABX中。如果我跨过并到达if StimeMeNFF（！）CHECTCRTCCRUNUNIN（3），我猜时钟没有运行，0返回。不知道下一步该怎么做。请让我知道我需要做什么来让时钟运行。谢谢。以上来自于百度翻译以下为原文 Hello, I have a PIC32MX795F512L on a USB starter board running in MPLABX 3.50 with the XC32 v1.40 compiler. I'm running a time_date code sample that I found here https://people.ece.cornel...xamples/plib_examples/ I pasted the c file (shown below) into MPLABX. If I step through and get to the if statement if(!CheckRtccRunning(3)) , I guess the clock is not running and 0 is returned. Not sure what to try next. Please let me know what I need to do to get the clock running. Thanks #include #ifndef _RTCC #error "This example needs a PIC32MX processor with RTCC peripheral present. Aborting build!" #endif // _RTCC // local function prototypes int CheckRtccRunning(int secWait); #pragma config FPLLMUL = MUL_20, FPLLIDIV = DIV_2, FPLLODIV = DIV_1, FWDTEN = OFF #pragma config POSCMOD = HS, FNOSC = PRIPLL, FPBDIV = DIV_1 #define SYS_FREQ (80000000L) int main(void) { rtccTime tm, tm1; // time structure rtccDate dt, dt1; // date structure SYSTEMConfig(SYS_FREQ, SYS_CFG_WAIT_STATES \| SYS_CFG_PCACHE); RtccInit(); // init the RTCC while(RtccGetClkStat()!=RTCC_CLK_ON); // wait for the SOSC to be actually running and RTCC to have its clock source // could wait here at most 32ms // when using the RtccSetTimeDate() function, the write operation is enabled if needed and then restored to the initial value // so that we don't have to worry about calling RtccWrEnable()/RtccWrDisable() functions // let's start setting the current date { // one way to do it tm.l=0; tm.sec=0x30; tm.min=0x27; tm.hour=0x14; dt.wday=2; dt.mday=0x26; dt.mon=0x06; dt.year=0x18; RtccSetTimeDate(tm.l, dt.l); } // however, much easier to do it should be: RtccSetTimeDate(0x14273000, 0x18062602); // time is MSb: hour, min, sec, rsvd. date is MSb: year, mon, mday, wday. tm1.l=RtccGetTime(); dt1.l=RtccGetDate(); // can check that the time and date are the ones we just set if(tm.hour!=tm1.hour \|\|tm.min!=tm1.min) { return 0; } if(dt.l!=dt1.l) // check for proper date { return 0; } // we can read the time and date in a single operation RtccGetTimeDate(&tm1, &dt1); // now that we know the RTCC clock is up and running, it's easier to start from fresh: RtccOpen(tm.l, dt.l, 0); // set time, date and calibration in a single operation // check that the RTCC is running if(!CheckRtccRunning(3)) { return 0; } // another way to see the RTCC is tunning: check the SYNC bit while(RtccGetSync()); // wait sync to be low while(!RtccGetSync()); // wait to be high while(RtccGetSync()); // wait sync to be low again // other RTCC operations // adjust the RTCC timing RtccSetCalibration(200); // value to calibrate with at each minute // enabling the RTCC output pin RtccSelectPulseOutput(1); // select the seconds clock pulse as the function of the RTCC output pin RtccSelectPulseOutput(0); // select the alARM pulse as the function of the RTCC output pin RtccOutputEnable(1); // enable the Output pin of the RTCC return 1; } 　 int CheckRtccRunning(int secWait) { #define WAIT_FOR_SEC_TMO 1100 // how many ms to wait for the RTCC seconds count to change 　 rtccTime t0, t1; int fail; int secCnt; unsigned int tStart; 　　 for(secCnt=0, fail=0; secCnt { tStart=ReadCoreTimer(); t0.l=RtccGetTime(); do { t1.l=RtccGetTime(); }while((t1.sec==t0.sec) && (ReadCoreTimer()-tStart)<(SYS_FREQ/2000)*WAIT_FOR_SEC_TMO); // wait seconds change 　 if(t1.sec==t0.sec) { fail=1; break; // failed } } return !fail; } 　 0
2018-9-11 14:54:02　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × qun333 该类别下有 57 个回答。邀请回答 caoguiqun 该类别下有 56 个回答。邀请回答威廉希尔官方网站发广告该类别下有 56 个回答。邀请回答 psw30 该类别下有 44 个回答。邀请回答伊丹姿子该类别下有 41 个回答。邀请回答 uwufwjrw 该类别下有 39 个回答。邀请回答 hetao1111 该类别下有 38 个回答。邀请回答 lc123617 该类别下有 35 个回答。邀请回答欧阳大大该类别下有 32 个回答。邀请回答 asd010 该类别下有 31 个回答。邀请回答作死不止该类别下有 31 个回答。邀请回答 wy8719 该类别下有 29 个回答。邀请回答 60user92 该类别下有 29 个回答。邀请回答 ju978779 该类别下有 28 个回答。邀请回答嘻嘻爱哈哈该类别下有 28 个回答。邀请回答 haikitty 该类别下有 28 个回答。邀请回答 xiuzhen122 该类别下有 27 个回答。邀请回答 pol666 该类别下有 27 个回答。邀请回答 ueywyrsdfs 该类别下有 26 个回答。邀请回答 lhly23 该类别下有 25 个回答。邀请回答举报李秀荣相关推荐 • 内部RTCC是否在MPLAB SIM中工作？ 1079 • PIC24FJ128GA202 RTCC中断不触发 2060 • 如何用用p24FJ128GC006更新RTCC 692 • 怎么使用PIC32MZ的RTCC设置 2186 • 怎么使用SOSC作为RTCC时钟源 4002 • RTCC时间不会增加 1014 • 如何使用pic18f rtcc警报的任意深度睡眠时间 2151 • Pic24 RTCC既未设置也未勾选 609 • 在哪里可以找到MC3377x EvalGUI中使用的BMS示例源代码？ 564 • RTCC跳过每月的第31天 859 2个回答

答案对人有帮助，有参考价值 0 你安装了一个32千赫晶体（在Y3上的董事会）？SoSC不能没有它，RTCC需要SOSC。我不会对代码本身进行评论，更不用说在主体（）的末尾出现了一个明显的错误：选择报警输出到RTCC PIN，并贬低绝对的ASIT返回语句。底线：首先得到SOSC RU。尊敬的戴夫以上来自于百度翻译以下为原文 Have you installed a 32 kHz crystal (at Y3 on the board)? SOSC can't run without it, and the RTCC requires SOSC. I won't comment on the code itself other than to mention there is a glaring error near the end of main() that selects the alarm output to go to the RTCC pin and to disparage the absolutely asinine return statements. Bottom line: First get SOSC running. Regards, Dave

2018-9-11 15:09:42 评论举报郑雅颖

答案对人有帮助，有参考价值 0 嗨，戴夫，没有水晶，谢谢你的帮助。以上来自于百度翻译以下为原文 Hi Dave, There is no crystal. Thanks for the help.

2018-9-11 15:17:18 评论举报 h1654155275.5998