cpu/nrf51822: added HFCLK initialization
cpu/nrf51822: added HFCLK initialization

biboc/RIOT,thomaseichinger/RIOT,dailab/RIOT,dhruvvyas90/RIOT,luciotorre/RIOT,Hyungsin/RIOT-OS,centurysys/RIOT,altairpearl/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,kbumsik/RIOT,Hyungsin/RIOT-OS,gebart/RIOT,bartfaizoltan/RIOT,neiljay/RIOT,benoit-canet/RIOT,plushvoxel/RIOT,openkosmosorg/RIOT,Osblouf/RIOT,nsol-nmsu/RIOT,rfswarm/RIOT,authmillenon/RIOT,JensErdmann/RIOT,katezilla/RIOT,ThanhVic/RIOT,EmuxEvans/RIOT,OTAkeys/RIOT,jferreir/RIOT,DipSwitch/RIOT,alex1818/RIOT,abkam07/RIOT,RubikonAlpha/RIOT,tdautc19841202/RIOT,1blankz7/RIOT,backenklee/RIOT,kYc0o/RIOT,chris-wood/RIOT,rousselk/RIOT,ximus/RIOT,herrfz/RIOT-old,thomaseichinger/RIOT,Josar/RIOT,centurysys/RIOT,openkosmosorg/RIOT,altairpearl/RIOT,changbiao/RIOT,ximus/RIOT,bartfaizoltan/RIOT,EmuxEvans/RIOT,Josar/RIOT,neiljay/RIOT,OlegHahm/RIOT,RubikonAlpha/RIOT,centurysys/RIOT,thiagohd/RIOT,biboc/RIOT,ximus/RIOT,rfswarm/RIOT,jasonatran/RIOT,kaleb-himes/RIOT,latsku/RIOT,mziegert/RIOT,x3ro/RIOT,thomaseichinger/RIOT,LudwigKnuepfer/RIOT,TobiasFredersdorf/RIOT,RubikonAlpha/RIOT,watr-li/RIOT,sumanpanchal/RIOT,malosek/RIOT,LudwigOrtmann/RIOT,kaspar030/RIOT,basilfx/RIOT,1blankz7/RIOT,rakendrathapa/RIOT,l3nko/RIOT,tfar/RIOT,latsku/RIOT,wentaoshang/RIOT,kaspar030/RIOT,toonst/RIOT,BytesGalore/RIOT,neiljay/RIOT,TobiasFredersdorf/RIOT,ThanhVic/RIOT,nsol-nmsu/RIOT,rfswarm2/RIOT,dkm/RIOT,alignan/RIOT,haoyangyu/RIOT,yogo1212/RIOT,miri64/RIOT,josephnoir/RIOT,koenning/RIOT,automote/RIOT,malosek/RIOT,asanka-code/RIOT,miri64/RIOT,khhhh/RIOT,toonst/RIOT,automote/RIOT,avmelnikoff/RIOT,shady33/RIOT,Josar/RIOT,RBartz/RIOT,d00616/RIOT,fnack/RIOT,josephnoir/RIOT,thiagohd/RIOT,marcosalm/RIOT,Ell-i/RIOT,MarkXYang/RIOT,luciotorre/RIOT,d00616/RIOT,mfrey/RIOT,PSHIVANI/Riot-Code,attdona/RIOT,jfischer-phytec-iot/RIOT,A-Paul/RIOT,roberthartung/RIOT,OTAkeys/RIOT,jferreir/RIOT,adjih/RIOT,aeneby/RIOT,brettswann/RIOT,avmelnikoff/RIOT,abp719/RIOT,aeneby/RIOT,arvindpdmn/RIOT,immesys/RiSyn,kbumsik/RIOT,benoit-canet/RIOT,Osblouf/RIOT,Yonezawa-T2/RIOT,attdona/RIOT,khhhh/RIOT,changbiao/RIOT,luciotorre/RIOT,Lexandro92/RIOT-CoAP,herrfz/RIOT-old,LudwigOrtmann/RIOT,altairpearl/RIOT,PSHIVANI/Riot-Code,rfuentess/RIOT,Yonezawa-T2/RIOT,MarkXYang/RIOT,zhuoshuguo/RIOT,backenklee/RIOT,msolters/RIOT,zhuoshuguo/RIOT,adrianghc/RIOT,ntrtrung/RIOT,haoyangyu/RIOT,sumanpanchal/RIOT,A-Paul/RIOT,mziegert/RIOT,dkm/RIOT,zhuoshuguo/RIOT,phiros/RIOT,gbarnett/RIOT,jhollister/RIOT,basilfx/RIOT,daniel-k/RIOT,automote/RIOT,brettswann/RIOT,lebrush/RIOT,jasonatran/RIOT,kushalsingh007/RIOT,roberthartung/RIOT,jferreir/RIOT,Osblouf/RIOT,Lexandro92/RIOT-CoAP,khhhh/RIOT,dailab/RIOT,haoyangyu/RIOT,sgso/RIOT,robixnai/RIOT,dkm/RIOT,lebrush/RIOT,haoyangyu/RIOT,A-Paul/RIOT,Josar/RIOT,shady33/RIOT,koenning/RIOT,automote/RIOT,ant9000/RIOT,sumanpanchal/RIOT,biboc/RIOT,ks156/RIOT,tfar/RIOT,changbiao/RIOT,centurysys/RIOT,backenklee/RIOT,Osblouf/RIOT,syin2/RIOT,wentaoshang/RIOT,nsol-nmsu/RIOT,kaleb-himes/RIOT,hamilton-mote/RIOT-OS,Hyungsin/RIOT-OS,abp719/RIOT,phiros/RIOT,plushvoxel/RIOT,x3ro/RIOT,asanka-code/RIOT,JensErdmann/RIOT,dailab/RIOT,roberthartung/RIOT,koenning/RIOT,smlng/RIOT,jfischer-phytec-iot/RIOT,ant9000/RIOT,mtausig/RIOT,dhruvvyas90/RIOT,attdona/RIOT,x3ro/RIOT,Ell-i/RIOT,gbarnett/RIOT,cladmi/RIOT,asanka-code/RIOT,patkan/RIOT,asanka-code/RIOT,alignan/RIOT,phiros/RIOT,binarylemon/RIOT,lebrush/RIOT,ThanhVic/RIOT,binarylemon/RIOT,syin2/RIOT,centurysys/RIOT,jbeyerstedt/RIOT-OTA-update,benoit-canet/RIOT,ntrtrung/RIOT,OTAkeys/RIOT,robixnai/RIOT,dailab/RIOT,binarylemon/RIOT,syin2/RIOT,abkam07/RIOT,cladmi/RIOT,1blankz7/RIOT,kerneltask/RIOT,openkosmosorg/RIOT,openkosmosorg/RIOT,yogo1212/RIOT,OlegHahm/RIOT,MarkXYang/RIOT,thiagohd/RIOT,kaleb-himes/RIOT,MohmadAyman/RIOT,cladmi/RIOT,AnonMall/RIOT,EmuxEvans/RIOT,sumanpanchal/RIOT,LudwigOrtmann/RIOT,DipSwitch/RIOT,marcosalm/RIOT,robixnai/RIOT,tfar/RIOT,plushvoxel/RIOT,adrianghc/RIOT,l3nko/RIOT,LudwigOrtmann/RIOT,luciotorre/RIOT,fnack/RIOT,toonst/RIOT,watr-li/RIOT,centurysys/RIOT,daniel-k/RIOT,neiljay/RIOT,lazytech-org/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,mtausig/RIOT,neumodisch/RIOT,ntrtrung/RIOT,herrfz/RIOT-old,LudwigOrtmann/RIOT,abp719/RIOT,malosek/RIOT,beurdouche/RIOT,ThanhVic/RIOT,shady33/RIOT,AnonMall/RIOT,TobiasFredersdorf/RIOT,rfswarm2/RIOT,immesys/RiSyn,haoyangyu/RIOT,mziegert/RIOT,basilfx/RIOT,koenning/RIOT,toonst/RIOT,jfischer-phytec-iot/RIOT,roberthartung/RIOT,LudwigKnuepfer/RIOT,jbeyerstedt/RIOT-OTA-update,koenning/RIOT,lazytech-org/RIOT,FrancescoErmini/RIOT,katezilla/RIOT,rfswarm2/RIOT,herrfz/RIOT,jasonatran/RIOT,kbumsik/RIOT,watr-li/RIOT,rakendrathapa/RIOT,bartfaizoltan/RIOT,Osblouf/RIOT,x3ro/RIOT,Lexandro92/RIOT-CoAP,sumanpanchal/RIOT,TobiasFredersdorf/RIOT,Darredevil/RIOT,gebart/RIOT,alignan/RIOT,kerneltask/RIOT,thiagohd/RIOT,adjih/RIOT,alex1818/RIOT,kb2ma/RIOT,MonsterCode8000/RIOT,MohmadAyman/RIOT,rousselk/RIOT,Yonezawa-T2/RIOT,basilfx/RIOT,FrancescoErmini/RIOT,thomaseichinger/RIOT,benoit-canet/RIOT,josephnoir/RIOT,smlng/RIOT,Darredevil/RIOT,jbeyerstedt/RIOT-OTA-update,kaspar030/RIOT,MonsterCode8000/RIOT,wentaoshang/RIOT,cladmi/RIOT,wentaoshang/RIOT,mtausig/RIOT,RIOT-OS/RIOT,neumodisch/RIOT,ntrtrung/RIOT,haoyangyu/RIOT,DipSwitch/RIOT,marcosalm/RIOT,kb2ma/RIOT,1blankz7/RIOT,toonst/RIOT,ks156/RIOT,rfswarm/RIOT,kerneltask/RIOT,jremmert-phytec-iot/RIOT,attdona/RIOT,authmillenon/RIOT,tfar/RIOT,dhruvvyas90/RIOT,herrfz/RIOT,attdona/RIOT,Darredevil/RIOT,abp719/RIOT,jhollister/RIOT,Lexandro92/RIOT-CoAP,rfuentess/RIOT,BytesGalore/RIOT,RIOT-OS/RIOT,brettswann/RIOT,watr-li/RIOT,koenning/RIOT,patkan/RIOT,robixnai/RIOT,brettswann/RIOT,mfrey/RIOT,avmelnikoff/RIOT,RBartz/RIOT,ks156/RIOT,gebart/RIOT,herrfz/RIOT-old,smlng/RIOT,hamilton-mote/RIOT-OS,benoit-canet/RIOT,authmillenon/RIOT,DipSwitch/RIOT,latsku/RIOT,rajma996/RIOT,malosek/RIOT,rfswarm2/RIOT,FrancescoErmini/RIOT,LudwigKnuepfer/RIOT,kbumsik/RIOT,asanka-code/RIOT,gautric/RIOT,Hyungsin/RIOT-OS,alex1818/RIOT,sumanpanchal/RIOT,sgso/RIOT,mziegert/RIOT,yogo1212/RIOT,l3nko/RIOT,benoit-canet/RIOT,ThanhVic/RIOT,l3nko/RIOT,beurdouche/RIOT,herrfz/RIOT-old,avmelnikoff/RIOT,tdautc19841202/RIOT,watr-li/RIOT,jremmert-phytec-iot/RIOT,backenklee/RIOT,lebrush/RIOT,hamilton-mote/RIOT-OS,foss-for-synopsys-dwc-arc-processors/RIOT,kb2ma/RIOT,neumodisch/RIOT,adjih/RIOT,jremmert-phytec-iot/RIOT,syin2/RIOT,patkan/RIOT,JensErdmann/RIOT,JensErdmann/RIOT,rousselk/RIOT,ant9000/RIOT,jbeyerstedt/RIOT-OTA-update,TobiasFredersdorf/RIOT,MarkXYang/RIOT,rakendrathapa/RIOT,ks156/RIOT,MohmadAyman/RIOT,altairpearl/RIOT,phiros/RIOT,kaspar030/RIOT,dhruvvyas90/RIOT,OlegHahm/RIOT,Darredevil/RIOT,gebart/RIOT,mtausig/RIOT,luciotorre/RIOT,jasonatran/RIOT,1blankz7/RIOT,attdona/RIOT,patkan/RIOT,Yonezawa-T2/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,neumodisch/RIOT,A-Paul/RIOT,kerneltask/RIOT,DipSwitch/RIOT,mziegert/RIOT,msolters/RIOT,dailab/RIOT,dhruvvyas90/RIOT,aeneby/RIOT,alignan/RIOT,rajma996/RIOT,basilfx/RIOT,stevenj/RIOT,jferreir/RIOT,mfrey/RIOT,rajma996/RIOT,rfswarm2/RIOT,abkam07/RIOT,PSHIVANI/Riot-Code,rfswarm/RIOT,tdautc19841202/RIOT,rfuentess/RIOT,d00616/RIOT,katezilla/RIOT,jhollister/RIOT,kushalsingh007/RIOT,d00616/RIOT,mziegert/RIOT,gautric/RIOT,mfrey/RIOT,PSHIVANI/Riot-Code,stevenj/RIOT,sgso/RIOT,sgso/RIOT,Darredevil/RIOT,latsku/RIOT,Josar/RIOT,Lexandro92/RIOT-CoAP,Ell-i/RIOT,OTAkeys/RIOT,Hyungsin/RIOT-OS,daniel-k/RIOT,EmuxEvans/RIOT,jferreir/RIOT,AnonMall/RIOT,kYc0o/RIOT,wentaoshang/RIOT,malosek/RIOT,roberthartung/RIOT,alignan/RIOT,AnonMall/RIOT,authmillenon/RIOT,phiros/RIOT,tdautc19841202/RIOT,kushalsingh007/RIOT,msolters/RIOT,l3nko/RIOT,abp719/RIOT,arvindpdmn/RIOT,AnonMall/RIOT,miri64/RIOT,arvindpdmn/RIOT,tfar/RIOT,alex1818/RIOT,bartfaizoltan/RIOT,RBartz/RIOT,immesys/RiSyn,authmillenon/RIOT,jhollister/RIOT,kaleb-himes/RIOT,miri64/RIOT,OlegHahm/RIOT,jfischer-phytec-iot/RIOT,PSHIVANI/Riot-Code,rakendrathapa/RIOT,RubikonAlpha/RIOT,kushalsingh007/RIOT,RBartz/RIOT,hamilton-mote/RIOT-OS,RIOT-OS/RIOT,arvindpdmn/RIOT,rajma996/RIOT,sgso/RIOT,robixnai/RIOT,kbumsik/RIOT,ximus/RIOT,altairpearl/RIOT,RubikonAlpha/RIOT,shady33/RIOT,daniel-k/RIOT,thiagohd/RIOT,fnack/RIOT,zhuoshuguo/RIOT,chris-wood/RIOT,chris-wood/RIOT,altairpearl/RIOT,jasonatran/RIOT,kerneltask/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,kb2ma/RIOT,shady33/RIOT,abkam07/RIOT,bartfaizoltan/RIOT,kushalsingh007/RIOT,beurdouche/RIOT,mfrey/RIOT,dkm/RIOT,d00616/RIOT,automote/RIOT,dkm/RIOT,kYc0o/RIOT,abp719/RIOT,patkan/RIOT,gbarnett/RIOT,kb2ma/RIOT,khhhh/RIOT,ntrtrung/RIOT,MohmadAyman/RIOT,arvindpdmn/RIOT,alex1818/RIOT,rousselk/RIOT,FrancescoErmini/RIOT,A-Paul/RIOT,aeneby/RIOT,backenklee/RIOT,kushalsingh007/RIOT,BytesGalore/RIOT,ntrtrung/RIOT,Darredevil/RIOT,jhollister/RIOT,herrfz/RIOT,jbeyerstedt/RIOT-OTA-update,biboc/RIOT,katezilla/RIOT,lazytech-org/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,avmelnikoff/RIOT,nsol-nmsu/RIOT,stevenj/RIOT,RIOT-OS/RIOT,msolters/RIOT,l3nko/RIOT,rousselk/RIOT,binarylemon/RIOT,gbarnett/RIOT,khhhh/RIOT,rfswarm/RIOT,dhruvvyas90/RIOT,syin2/RIOT,Ell-i/RIOT,latsku/RIOT,changbiao/RIOT,MohmadAyman/RIOT,stevenj/RIOT,kYc0o/RIOT,MonsterCode8000/RIOT,immesys/RiSyn,adjih/RIOT,lazytech-org/RIOT,stevenj/RIOT,thomaseichinger/RIOT,binarylemon/RIOT,yogo1212/RIOT,Ell-i/RIOT,alex1818/RIOT,hamilton-mote/RIOT-OS,herrfz/RIOT,jferreir/RIOT,smlng/RIOT,ximus/RIOT,openkosmosorg/RIOT,jremmert-phytec-iot/RIOT,MonsterCode8000/RIOT,ximus/RIOT,shady33/RIOT,josephnoir/RIOT,JensErdmann/RIOT,jremmert-phytec-iot/RIOT,latsku/RIOT,aeneby/RIOT,gbarnett/RIOT,fnack/RIOT,OlegHahm/RIOT,fnack/RIOT,x3ro/RIOT,neumodisch/RIOT,kYc0o/RIOT,brettswann/RIOT,RBartz/RIOT,Yonezawa-T2/RIOT,chris-wood/RIOT,authmillenon/RIOT,rfuentess/RIOT,adrianghc/RIOT,katezilla/RIOT,herrfz/RIOT,thiagohd/RIOT,fnack/RIOT,changbiao/RIOT,rousselk/RIOT,rfuentess/RIOT,MarkXYang/RIOT,FrancescoErmini/RIOT,smlng/RIOT,BytesGalore/RIOT,daniel-k/RIOT,cladmi/RIOT,miri64/RIOT,plushvoxel/RIOT,lebrush/RIOT,abkam07/RIOT,openkosmosorg/RIOT,patkan/RIOT,rfswarm/RIOT,marcosalm/RIOT,Yonezawa-T2/RIOT,rajma996/RIOT,LudwigKnuepfer/RIOT,mtausig/RIOT,MonsterCode8000/RIOT,binarylemon/RIOT,watr-li/RIOT,Osblouf/RIOT,zhuoshuguo/RIOT,sgso/RIOT,marcosalm/RIOT,lazytech-org/RIOT,DipSwitch/RIOT,changbiao/RIOT,robixnai/RIOT,josephnoir/RIOT,khhhh/RIOT,rajma996/RIOT,1blankz7/RIOT,JensErdmann/RIOT,rakendrathapa/RIOT,EmuxEvans/RIOT,beurdouche/RIOT,kaspar030/RIOT,tdautc19841202/RIOT,FrancescoErmini/RIOT,tdautc19841202/RIOT,stevenj/RIOT,chris-wood/RIOT,adrianghc/RIOT,rakendrathapa/RIOT,gbarnett/RIOT,lebrush/RIOT,gautric/RIOT,plushvoxel/RIOT,herrfz/RIOT,chris-wood/RIOT,Lexandro92/RIOT-CoAP,jhollister/RIOT,gautric/RIOT,ThanhVic/RIOT,wentaoshang/RIOT,EmuxEvans/RIOT,ant9000/RIOT,MohmadAyman/RIOT,MonsterCode8000/RIOT,phiros/RIOT,RubikonAlpha/RIOT,immesys/RiSyn,adjih/RIOT,abkam07/RIOT,BytesGalore/RIOT,malosek/RIOT,RBartz/RIOT,beurdouche/RIOT,zhuoshuguo/RIOT,yogo1212/RIOT,biboc/RIOT,LudwigKnuepfer/RIOT,gautric/RIOT,msolters/RIOT,ant9000/RIOT,neiljay/RIOT,bartfaizoltan/RIOT,neumodisch/RIOT,ks156/RIOT,LudwigOrtmann/RIOT,MarkXYang/RIOT,immesys/RiSyn,OTAkeys/RIOT,jfischer-phytec-iot/RIOT,kaleb-himes/RIOT,daniel-k/RIOT,adrianghc/RIOT,gebart/RIOT,nsol-nmsu/RIOT,marcosalm/RIOT,AnonMall/RIOT,brettswann/RIOT,luciotorre/RIOT,msolters/RIOT,jremmert-phytec-iot/RIOT,arvindpdmn/RIOT,rfswarm2/RIOT,PSHIVANI/Riot-Code,d00616/RIOT,automote/RIOT,asanka-code/RIOT