CY8C21434 imagwiritsa ntchito malangizo a M8C (onani zolemba). Pa [tsamba lazinthu]( (http://www.cypress.com/part/cy8c21434-24ltxi) zikuwonetsedwa kuti zimathandizira ukadaulo CapSense (yankho lochokera ku Cypress, la ma capacitive keyboards). Apa mutha kuwona cholumikizira cha pini zisanu chomwe ndidagulitsa - iyi ndi njira yolumikizira pulogalamu yakunja kudzera pa mawonekedwe a ISSP.
Mafotokozedwe a chithunzichi chojambulidwa pabondo:
PSoC ikufotokozedwa mwatsatanetsatane;
cholumikizira chotsatira, chomwe chili kumanja, ndi mawonekedwe a ISSP, omwe, mwa chifuniro cha tsoka, amagwirizana ndi zomwe zalembedwa pa intaneti;
Cholumikizira chakumanja ndi cholumikizira cholumikizira riboni ku bolodi la kiyibodi;
Rectangle wakuda ndi chojambula cha CN1 cholumikizira, chopangidwa kuti chilumikize bolodi lalikulu ku bolodi la LCD. P11, P13 ndi P4 zolumikizidwa ndi PSoC zikhomo 11, 13 ndi 4, pa bolodi la LCD.
Iyi ndi njira imodzi yopezera chip chomwe chili ndi udindo woyang'anira kulumikizana kwa nthawi / zomwe zimakonda. Monga tikudziwira kale, chowongolera cha USB-SATA chimalumikizidwa ndi Cypress PSoC LCD kudzera cholumikizira CN1 ndi nthiti ziwiri. Chifukwa chake, timalumikiza ma probe ndi miyendo itatu yofananira:
Pa izo tikhoza kuwona njira zitatu zosinthira deta:
pali zophulika zingapo zazifupi pa njira P4;
pa P11 ndi P13 - pafupifupi kusinthanitsa kwa data kosalekeza.
Kufikira pa spike yoyamba pa tchanelo P4 (rectangle yabuluu pachithunzi cham'mbuyo), tikuwona zotsatirazi:
Apa mutha kuwona kuti pa P4 pali pafupifupi 70ms ya siginecha yoyipa, yomwe poyamba idawoneka kwa ine kuti imasewera chizindikiro cha wotchi. Komabe, nditakhala nthawi yayitali ndikuwunika momwe ndimaganizira, ndidazindikira kuti iyi si chizindikiro cha wotchi, koma mawu omvera omwe amatuluka kwa tweeter pomwe makiyi akanikizidwa. Choncho, gawo ili la chizindikiro palokha lilibe mfundo zothandiza kwa ife. Komabe, itha kugwiritsidwa ntchito ngati chisonyezo kuti mudziwe pomwe PSoC imalembetsa makina osindikizira.
Komabe, nyimbo zaposachedwa za P4 ndizosiyana pang'ono: ndi mawu a "PIN yolakwika"!
Kubwerera ku graph ya keystroke, ndikuyandikira chithunzi chomaliza cha audio (onaninso rectangle ya buluu), timapeza:
Apa tikuwona zoziziritsa kukhosi pa P11. Kotero zikuwoneka ngati ichi ndi chizindikiro cha wotchi. Ndipo P13 ndi data. Zindikirani momwe chitsanzocho chimasinthira beep ikatha. Zingakhale zosangalatsa kuwona zomwe zikuchitika pano.
Ma Protocol omwe amagwira ntchito ndi mawaya awiri nthawi zambiri amakhala SPI kapena I2C, ndipo mawonekedwe aukadaulo pa Cypress akuti zikhomozi zimagwirizana ndi I2C, zomwe tikuwona kuti ndizowona kwa ife: