开发教程3AI语音人脸识别会议记录仪_人脸打卡机定时器.docx

《开发教程3AI语音人脸识别会议记录仪_人脸打卡机定时器.docx》由会员分享，可在线阅读，更多相关《开发教程3AI语音人脸识别会议记录仪_人脸打卡机定时器.docx（25页珍藏版）》请在第一文库网上搜索。

1、CC3200AI实验教程疯壳开发板系列Wo1verine-Team2018/07/18目录11寄存器11.2实验现象19官网地址：http:WWW.fe)ke.c1ub购买链接：http:ShoP官方QQ群：193836402定时器1.1寄存器CC3200包含4个32位用户可编程通用定时器(TimerAO-3),通用定时器可以对定时器输入引脚的外部事件进行计数或定时。每个定时器模块包含2个16位的定时/计数器(TimerA和TimerB),可以作为定时器或事件计数器独立工作，也可以作为一个32位定时器工作。CC3200的定时器具有多种操作模式：16位或32位可编程单次定时器；16位或32位可编

2、程周期定时器；16位通用定时器，带8位预分频器；16位输入边沿计数或时间捕捉模式，带8位预分频器；16位脉冲宽度调制模式(PWM),带8位预分频器和软件可编程输入。具有以下特性：a向上或向下计数；b、16个16位或32位捕捉比较PWM(CCP)引脚；c、可以确定产生定时器中断到进入中断服务程序(ISR)的时间；d、可以触发使用DMA的高效传输；e系统时钟运行(80MHz)。GPTMCFG寄存器主要是配置通用定时器模块的全局操作。确定通用定时器工作于32位模式还是16位模式。该寄存器中的值只能是在GPTMCT1寄存器中的TAEN和TBEN两位被清零时改变。如图1.0.1所示。Figure9-5.

3、GPTMCFGRegister31302928272625242322212019181716RESERVEDR-Oh1514131211109876543210RESERVEDGPTMCFGR-OhRW-0hTab1e9-9.GPTMCFGRegisterFie1dDescriptionsBitFie1dTypeResetDescription31-3RESERVEDROh2-0GPTMCFGR/WOhGPTMConfigurationTheGPTMCFGva1uesaredefinedasfo11ows:1h-3h=Reserved5h-7h=ReservedOh=Fora16/32-bi

4、ttimer,thisva1uese1ectsthe32-bittimernfiguration.4h=Fora16/32-bittimer,thisva1uese1ectsthe16-bittimernfiguration.Thefunctioniscontro11edbybits1:0ofGPTMTAMRandGPTMTBMR.图1.0.1GPTMCFG寄存器20位：写入0,配置为32位定时器模式；写入4,配置为16位定时器模式。GPTMTAMR寄存器配置是基于GPTMCFG寄存器的配置来进行选择的。在PWM模式中，置位TAAMS位、清除TACMR位和配置TAMR为0x01或者0x02。寄

5、存器如图1.0.2所示，位定义如图1.0.3所示。ryut;bpjrmmrr=y0u;13130292827262524RESERVEDR-Oh2322212019181716RESERVEDR-Oh15141312111098RESERVEDTAP1OTAMRSUTAPWMIETAI1DR-OhRW)hR/W-OhR/W-OhFVW-Oh7654321ORESERVEDTAMIETACDIRTAAMSTACMIRTAMRR-OhRW-0hRW-OhRM)hRW-OhRW0h图1.0.2Gptmtamr寄存器Tab1e9-10.GPTMTAMRRegisterFie1dDescriptions

6、BitFie1dTypeResetDescription31-12RESERVEDROh11TAP1OR/WOhGPTMTimerAPWM1egacyOperationOh=1egacyoperationwithCCPpindriven1owwhenteGPTMTAI1Risre1oadedafterthetimerreaches0.1h=CCPisdrivenHighwhentheGPTMTAI1Risre1oadedafterthetimerreaches0.10TAMRSUR/WOhGPTMTimerAMatchRegisterUpdateIfthetimerisdisab1ed(TAE

7、Nisc1ear)whenthisbitisset,GPTMTAMATCHRandGPTMTAPRareupdatedwhenthetimerisenab1ed.Ifthetimerissta11ed(TASTA11isset),GPTMTAMATCHRandGPTMTAPRareupdatedaccordingtotheconfigurationofthisbit.Oh=UpdatetheGPTMTAMATCHRregisterandtheGPTMTAPRregister,ifused,onthenextcyc1e.1h=UpdatetheGPTMTAMATCHRregisterandthe

8、GPTMTAPRregister,ifused,onthenexttimeout.9TAPWMIETab1e9-10R/WGPTMTAFOhWRRegisteGPTMTimerAPWMInterruptEnab1eThisbitenab1esinterruptsinPWMmodeonrising,fa11ing,orbothedgesoftheCCPoutput,asdefinedbytheTAEVENTfie1dintheGPTMCT1register.Inaddition,whenthisbitissetandacaptureeventoccurs.TimerAautomatica11yg

9、eneratestriggerstotheDMAifthetriggercapabi1ityisenab1edbysettingtheTAOTEbitintheGPTMCT1registerandtheCAEDMAENbitintheGptmdmaevregister,respective1y.Thisbitison1yva1idinPWMmode.Oh=Captureeventinterruptisdisab1ed.1h=Captureeventinterruptisenab1ed.rFie1dDescriptions(continued)BitFie1dTypeResetDescripti

10、on8TAI1DR/WOhGPTMTimerAInterva11oadWriteNotethestateofthisbithasnoeffectwhenuntigup.Thebitdescnptionsaboveapp1yifthetimerisenab1edandrunning.Ifthetimerisdisab1ed(TAENisc1ear)whenthisbitisset,GPTMTARGPTMTAVandGPTMTAPs,areupdatedwenthetimerisenab1ed.Ifthetimerissta11ed(TASTA11isset).GPTMTARandGPTMTAPS

11、areupdatedaccordingtotheConfigUratiOnofthisbitOh=UpdatetheGPTMTARandGPTMTAVregisterswiththeva1ueintheGPTMTAI1Rregisteronthenextcyc1e.A1soupdatetheGPTMTAPSregisterwiththeva1ueintheGPTMTAPRregisteronthenextcyc1e.1h=UpdatetheGPTMTARandGPTMTAVregisterswiththeva1uetheGPTMTAI1Rregisteronthenexttimeout.A1s

12、oupdatetheGPTMTAPSregisterwiththeva1ueintheGPTMTAPRregisteronthenexttimeout.7-6RESERVEDROh5TAMIERWOhGPTMTimerAMatchInterruptEnab1eOhThematchinterruptisdisab1edformatchevents.Additiona11y,triggerstotheDMAonmatcheventsareprevented.1h=Aninterruptisgeneratedwhenthematchva1ueintheGPTMTAMATCHRregisterisre

13、achedintheone-shotandperiodicmodes.4TACDIRR/WOhGPTMTimerACountDirectionWheninPWMmode,thestatusofthisbitisignored.PWMmodea1waysuntsdown.Oh=Thetimercountsdown.1h=Thetimeruntsup.Whencountingup,thetimerstartsfromava1ueof0x0.3TAAMSR/WOhGPTMTimerAA1ternateModeSe1ectTheTAAMSva1uesaredefinedasfo11ows:NoteTo

14、enab1ePWMmode,deartheTACMRb(tandnfiguretheTAMRfie1dto0x1or0x2.OhCaptureorcomparemodeisenab1ed.1h=PWMmodeisenab1ed.2TACMIRR/WOhGPTMTimerACaptureModeTheTACMRva1uesaredefinedasfo11ows:Oh=Edge-Countmode1h=Edge-Timemode1-0TAMRR/WOhGPTMTimerAModeTheTAMRva1uesaredefinedasfo11ows:TheTimermodeisbasedonthetimernfigurationdefinedbybits2:0intheGPTMCFGregister.Oh-Reserved1h=One-ShotTimermode2h=PeriodicTimermode3h=Capturemode图103GPTMTAMR寄存器位定义Gptmtbmr寄存器控制独立定时器B的工作模式。当定时器A和定时器B一起使用时该寄存器被忽略，而是通过GPTMTAMR来控制定时器A和定时器B的工作模式。注意：除了TCACT