詳細開發(fā)2.新唐單片機cortexm032位25numicro mini51pwm

NuMicro?N議題是什么:頻怎樣選 輸出通道多少比特呢互補

周

中特性6個獨立的16- 6個獨立 輸出 4, 3對互補的 ,一對中的兩個 1), 3)and 3對同步的 ,一對中的兩個 1),( 3)和( 2 4 0同One-shotAuto-reload特性互補的一 之間插入的死區(qū)時間可以設(shè)0 2種中斷源:模式)中斷將發(fā)生BKP0:eINT0BKP1:eINT1or signalsbeforepolaritycontrolstagearedefinedintheviewofpositivelogic.配 發(fā)生3) 對插入死2)選 選擇合適 時設(shè) 頻率(設(shè) 占空比配 設(shè)定

使 輸(CMR+1)/高電平=(CMR+1)x(clockperiod) =(CNR+1)x(clockperiod)++-newCMRn(CNRCMR)/高電平=(CNR-CMR)x2x(clockperiod) =(CNR+1)x2x(clockperiod)IfIf16-up/downcounterUpdateUpdatenewdutycycleregister(CMRn)ifCHnMODE=Updatenewperiodcycleregister(CNRn)ifCHnMODE=CNRnCNRn(old)CMRn

16-bitCMRnNewDutyngenerator

NewCMRnis NewCNRnisS/WS/W

writeanonzeronumbertoprescaler&setupclock

第二個周

CMR) 信號輸出相位相同的波形.PG1=PG0,PG3=PG2andPG5=PG4.奇 通道(x+1)與對應(yīng)的偶 x0,2,or所有的偶數(shù)通道的占空比都由0占空比寄存器控制.為了避免一 在高電平的時 中每個脈沖高電平之前插入延遲時間(死區(qū)).8-bit死區(qū)時間設(shè)定，單位是 PG0withoutPG1withoutDead-zone

互補模式下死區(qū)的作所有 口有獨立的極性控制，用來配 的輸出極性默認 輸出高電平InitialInitialDead-zoneinsertion;ItisonlyeffectiveincomplementaryNPx:NegativePolaritycontrolbits;Itcontrolsthe outputinitialstateandpolarityoutputwithdead-zoneinsertionandpolarityBKP0eINT0BKP1eINT1CPO0當(dāng)故障剎車發(fā)生時輸出電平可以配置 0~5使能bits將被硬件關(guān)閉.再次使能0~5之前，用戶必須一 _操作模式: 256Hz~483 /*Copyright(c)2009NuvotonTechnologyCorp.All #include<stdio.h>#include"Driver\DrvGPIO.h"#include"Driver\Drv #include"Driver\DrvSYS.h"#include"Driver\DrvUART.h"#include"Driver\assert.h" /*Global int32_tg_bCapInt=uint8_tvolatileg_u8 Count=0;uint16_tg_u16Frequency;staticuint32_ts_u32Pulse= TimerCallback void IRQHandler(uint32_t{if(s_u32Pulse=={ /* Timer /* Timercounteras0,Wheninterruptrequesthappen, _TIMER3, _TIMER3,}if(s_u32Pulse==g_u16Frequency+1) Count=0;}示例代碼，使用驅(qū)動 /*Main int32_tmain{ _TIME_DATA_TSTR_UART_TsParam;uint8_tu8Item;int32_ti32Loop=1;int32_ti32TestLoop=1;GCR->P5_MFP=(GCR->P5_MFP&0x00FFFCFC)|0x03;/*P5.1->XTAL2,P5.0->XTAL1*/CLK->PWRCON_BITS.XTLCLK_EN=1;/*Waitingfor12MXtalstalble*//*SetUARTPin*//*UARTSetting = = = =DRVUART_PARITY_NONE;sParam.u8cRxTriggerLevel=DRVUART_FIFO_1BYTES;/*SelectUARTClockSourceFrom12MHz*/DrvSYS_SelectIPClockSource(UART_CLK_SET,0);/*Set/*SetUARTConfigurationDrvUART_Open(UART_PORT0,/*clock CLK- 23_S=/*pin DriverSampleThissamplecodewilluseI/Oconfiguration:\n");3(P2.5)<-->3todrivewhile{PleaseSelectTest0TimerWaveform1:u8Item=示例代碼，使用驅(qū)動switch{case{uint8_t TimerWaveformTest.Waveformoutput( 3)toBuzzer\n");i32TestLoop=1;printf("SelectTestItem\n");printf("1:Do(256Hz)\n");printf("2:Reprintf("3:Miprintf("4:Faprintf("5:Sol(383Hz)printf("6:Laprintf("7:Siprintf("0:while{u8ItemOK=1;u8Item=getchar();switch{caseg_u16Frequency=256;caseg_u16Frequency=287;caseg_u16Frequency=322;示例代碼，使用驅(qū)動case

g_u16Frequency=341;caseg_u16Frequency=383;caseg_u16Frequency=430;caseg_u16Frequency=483;casei32TestLoop=0;u8ItemOK=0;}if(i32TestLoop&&u8ItemOK&& Count=={s_u32Pulse= Count=10:90

TimerpropertysPt.u8Mode= sPt.u32Frequency=sPt.u8HighPulseRatio=90; /*HighPulseperoid:TotalPulseperoid=sPt.i32Inverter=0;/* TimerConfiguration _TIMER3,/*EnableOutputfor Timer*/ _TIMER3,1);示例代碼，使用驅(qū)動/*EnableInterruptSour