RENESAS RA MCU Series RA8M1 Arm Cortex-M85 Microcontrollers

Product Information

Zvinotsanangurwa

• Product Zita: Renesas RA Mhuri
• Model: RA MCU Series

Nhanganyaya
Iyo Renesas RA Family Design Guide ye Sub-Clock Circuits inopa mirairo yekuti ungaderedza sei njodzi yekutadza kushanda kana uchishandisa low capacitive load (CL) resonator. Iyo sub-clock oscillation yedunhu ine yakaderera kuwana kudzikisa mashandisiro emagetsi, asi inotarirwa neruzha. Gwaro iri rine chinangwa chekubatsira vashandisi kusarudza izvo zvakakodzera zvikamu uye kugadzira yavo sub-wachi maseketi nenzira kwayo.

Target Devices
RA MCU Series

Zviri mukati

1. Chikamu Sarudzo
   1. Yekunze Crystal Resonator kusarudzwa
   2. Rodha Capacitor Sarudzo
2. Revision History

Mirayiridzo Yekushandiswa Kwechigadzirwa

Chikamu Sarudzo

Yekunze Crystal Resonator kusarudzwa

• Iyo yekunze crystal resonator inogona kushandiswa seye sub-clock oscillator sosi. Inofanirwa kuve yakabatana mhiri kweXCIN uye XCOUT mapini eMCU. Kuwanda kweiyo yekunze crystal resonator ye sub-clock oscillator inofanira kunge yakanyatso 32.768 kHz. Ndokumbira utarise chikamu cheMagetsi Mamiriro eMCU Hardware User's Manual kuti uwane mamwe mashoko.
• Kune akawanda RA mamicrocontrollers, yekunze crystal resonator inogonawo kushandiswa seyakanyanya wachi sosi. Muchiitiko ichi, inofanirwa kuve yakabatana mhiri kweEXTAL uye XTAL mapini eMCU. Kuwanda kwewachi huru yekunze kwekristaro resonator inofanirwa kunge iri mukati meiyo frequency renji yakatsanangurwa kune hombe wachi oscillator. Kunyange zvazvo gwaro iri rinotarisa pane sub-clock oscillator, sarudzo uye mazano ekugadzirisa ataurwa pano anogonawo kushandiswa pakugadzirwa kwechinyorwa chikuru chewachi uchishandisa kunze kwekristaro resonator.
• Paunosarudza kristaro resonator, zvakakosha kufunga nezveyakasarudzika bhodhi dhizaini. Kune akasiyana ekristaro resonator aripo ayo anogona kunge akakodzera kushandiswa neRA MCU zvishandiso. Inokurudzirwa kunyatsoongorora maitiro emagetsi ekristaro yakasarudzwa resonator kuti uone izvo zvinodiwa zvekushandisa.
• Mufananidzo 1 unoratidza akajairika example yekristaro resonator yekubatanidza kune sub-wachi sosi, nepo Mufananidzo 2 inoratidza yakaenzana dunhu.

Rodha Capacitor Sarudzo
Iyo yekuremerwa capacitor kusarudzwa kwakakosha pakushanda chaiko kweiyo sub-wachi wedunhu neRA MCU zvishandiso. Ndokumbira utarise chikamu cheMagetsi Mamiriro eMCU Hardware User's Manual kuti uwane mamwe mashoko uye nhungamiro pane capacitor.
sarudzo.

FAQ

• Mubvunzo: Ndingashandisa chero kristaro resonator kune sub-clock oscillator?
  A: Kwete, iyo yekunze crystal resonator ye sub-clock oscillator inofanira kuva nefrequency ye 32.768 kHz chaiyo. Tarisa kune yeMagetsi Characteristics chikamu cheMCU Hardware User's Manual kuti uwane mamwe mashoko.
• Mubvunzo: Ndinogona here kushandisa iyo crystal resonator kune ese ari-sub-wachi oscillator uye huru wachi oscillator?
  A: Hongu, kune akawanda RA microcontrollers, unogona kushandisa yekunze crystal resonator seyose sub-clock oscillator uye main clock oscillator. Nekudaro, ndapota ita shuwa kuti kuwanda kwewachi huru yekunze kwekristaro resonator inowira mukati meiyo yakataurwa frequency renji yeiyo huru wachi oscillator.

Renesas RA Mhuri

Dhizaini Yekutungamira ye Sub-Clock Circuits

Nhanganyaya
Iyo sub-clock oscillation circuit ine yakaderera kuwana kuderedza simba rekushandisa. Nekuda kwekuwana kwakaderera, kune njodzi yekuti ruzha runogona kuita kuti MCU ishande zvisizvo. Gwaro iri rinotsanangura nzira yekudzikisa njodzi iyi kana uchishandisa low capacitive load (CL) resonator.

Target Devices
RA MCU Series

Chikamu Sarudzo

Kusarudzwa kwechikamu kwakakosha kuti uve nechokwadi chekushanda kweiyo sub-wachi wedunhu neRA MCU zvishandiso. Zvikamu zvinotevera zvinopa nhungamiro yekubatsira mukusarudza chikamu.

Yekunze Crystal Resonator kusarudzwa
Iyo yekunze crystal resonator inogona kushandiswa seye sub-clock oscillator sosi. Iyo yekunze crystal resonator yakabatana mhiri kweXCIN uye XCOUT mapini eMCU. Kuwanda kwekunze kwekristaro resonator ye sub-clock oscillator inofanira kuva chaiyo 32.768 kHz. Tarisa kune yeMagetsi Characteristics chikamu cheMCU Hardware User's Manual kuti uwane mamwe mashoko.
Kune akawanda RA mamicrocontrollers, yekunze crystal resonator inogona kushandiswa seyo huru wachi sosi. Iyo yekunze crystal resonator yakabatana kune iyo EXTAL uye XTAL mapini eMCU. Kuwanda kwewachi huru yekunze kwekristaro resonator inofanira kunge iri muhuwandu hwehuwandu hwewachi huru oscillator. Iri gwaro rinotarisa pane sub-wachi oscillator, asi aya ekusarudza uye dhizaini nhungamiro inogona zvakare kushanda pakugadzira kweiyo main wachi sosi uchishandisa yekunze crystal resonator.
Kusarudzwa kwekristaro resonator kuchanyanya kutsamira pane yega yega yakasarudzika bhodhi dhizaini. Nekuda kwekusarudzwa kukuru kwekristaro resonator iripo iyo inogona kuve yakakodzera kushandiswa neRA MCU zvishandiso, nyatso ongorora maitiro emagetsi eiyo yakasarudzwa kristaro resonator kuti uone chaiwo ekuita zvinodiwa.

Mufananidzo 1 unoratidza akajairika example yekristaro resonator yekubatanidza kune sub-clock sosi.

Mufananidzo 2 unoratidza dunhu rakaenzana rekristaro resonator pane sub-clock circuit.

Mufananidzo 3 unoratidza akajairika example yekristaro resonator yekubatanidza kune iyo huru wachi sosi.

Mufananidzo 4 unoratidza dunhu rakaenzana rekristaro resonator pane main clock circuit.

Kunyatsoongorora kunofanirwa kushandiswa pakusarudza kristaro resonator uye yakabatana capacitors. Iyo yekunze mhinduro inopikisa (Rf) uye damping resistor (Rd) inogona kuwedzerwa kana yakakurudzirwa nemugadziri wekristaro resonator.
Kusarudzwa kweiyo capacitor kukosha kweCL1 uye CL2 kuchakanganisa kurongeka kwewachi yemukati. Kuti unzwisise kukanganisa kwemaitiro eCL1 uye CL2, dunhu rinofanira kufananidzwa uchishandisa dunhu rakaenzana rekristaro resonator munhamba dziri pamusoro. Kuti uwane mamwe mhedzisiro mhedzisiro, zvakare tora mukutarisa iyo yakarasika capacitance inoenderana neiyo nzira pakati pekristaro resonator zvikamu.
Mamwe makristasi resonators anogona kunge aine miganhu pane yakanyanya ikozvino yakapihwa neMCU. Kana iyo yazvino yakapihwa kune aya makristasi resonators yakanyanya kukwirira, iyo kristaro inogona kukuvara. A damping resistor (Rd) inogona kuwedzerwa kudzikamisa ikozvino kune crystal resonator. Tarisa kune mugadziri wekristaro resonator kuti uone kukosha kweiyi resistor.

Rodha Capacitor Sarudzo
Vagadziri veCrystal resonator vanowanzopa chiyero chemutoro (CL) chiyero kune yega yega crystal resonator. Nekushanda kwakakodzera kwekristaro resonator circuit, dhizaini yebhodhi inofanira kufanana neCL kukosha kwekristaro.
Pane nzira dzakati wandei dzekuverenga hunhu hwakakodzera hwemutoro capacitors CL1 uye CL2. Aya maverengero anofunga nezvehukoshero hwekutakura capacitors uye yakarasika capacitance (CS) yebhodhi dhizaini, iyo inosanganisira capacitance yemhangura traces uye pini yemidziyo yeMCU.
Imwe equation yekuverenga CL ndeye: Sezvo example, kana mugadziri wekristaro achitsanangura CL = 14 pF, uye dhizaini yebhodhi ine CS ye5 pF, inoguma CL1 uye CL2 ingave 18 pF. Chikamu 2.4 mugwaro rino chinopa humbowo kune dzimwe dzakasimbiswa resonator sarudzo uye yakabatana yedunhu magadzirirwo ekushanda kwakaringana.
Pane zvimwe zvinhu zvinokanganisa kushanda kwekristaro. Tembiricha, kuchembera kwechikamu, uye zvimwe zvakatipoteredza zvinogona kushandura mashandiro ekristaro nekufamba kwenguva uye zvinofanirwa kuverengerwa mune yega yega dhizaini.
Kuti ive nechokwadi chekushanda kwakakodzera, dunhu rega rega rinofanirwa kuyedzwa pasi pezvinotarisirwa mamiriro ezvakatipoteredza kuvimbisa kuita kwakaringana.

Board Design

Component Placement
Kuiswa kwekristaro oscillator, load capacitors, uye Opsioneal resistors zvinogona kuita zvakakosha pakuita kwewachi yedunhu.
Pakureva mukati megwaro iri, "chikamu chechikamu" chinoreva divi rimwechete rePCB dhizaini seMCU, uye "divi remutengesi" rinoreva divi rakatarisana nePCB dhizaini kubva kuMCU.
Zvinokurudzirwa kuisa kristaro resonator redunhu padyo sezvinobvira kune MCU pini padivi rechikamu chePCB. Iwo anotakura capacitors uye anosarudzika resistors anofanirwawo kuiswa padivi rechikamu, uye anofanirwa kuiswa pakati pekristaro resonator neMCU. Imwe nzira ndeyekuisa kristaro resonator pakati peMCU pini uye mutoro capacitors, asi yekuwedzera yepasi nzira inoda kutariswa.
Low CL crystal oscillators inonzwa nekushanduka kwekushisa, izvo zvinogona kukanganisa kugadzikana kwe sub-clock circuit. Kuti uderedze pesvedzero yetembiricha pane sub-wachi wedunhu, chengeta zvimwe zvikamu zvinogona kuburitsa kupisa kwakanyanya kure nekristaro oscillator. Kana nzvimbo dzemhangura dzichishandiswa sechidzitiro chekupisa kune zvimwe zvikamu, chengetedza kupisa kwemhangura kunyura kubva kune crystal oscillator.

Kufambisa - Maitiro Akanakisisa
Ichi chikamu chinotsanangura mapoinzi akakosha pakurongeka kwakakodzera kwekristaro resonator redunhu yeRA MCU zvishandiso.

XCIN uye XCOUT Routing
Rondedzero inotevera inotsanangura mapoinzi ekufambisa kweXCIN uye XCOUT. Mufananidzo 5, Mufananidzo 6, uye Mufananidzo 7 ratidza exampmashoma ekuda kutsvaga nzira yeXCIN uye XCOUT. Mufananidzo 8 unoratidza imwe exampiyo yekutevera nzira yeXCIN uye XCOUT. Nhamba dzekuzivikanwa dziri muFigure dzinoreva runyorwa urwu.

1. Usayambuka XCIN uye XCOUT traces nemamwe masaini echiratidzo.
2. Usawedzera pini yekutarisa kana nzvimbo yekuyedza kune XCIN kana XCOUT traces.
3. Gadzira iyo XCIN uye XCOUT yekutevera hupamhi pakati pe0.1 mm uye 0.3 mm. Iyo yekuteedzera kureba kubva pamapini eMCU kusvika kumapini ekristaro resonator inofanira kunge isingasviki gumi mm. Kana 10 mm isingagoneki, ita kuti kureba kwekutsvaga kuve kupfupi sezvinobvira.
4. Iyo trace yakabatana nepini yeXCIN uye inoteedzera yakabatana nepini yeXCOUT inofanira kuva nenzvimbo yakawanda pakati pavo (inenge 0.3 mm) sezvinobvira.
5. Batanidza ekunze capacitors pedyo pamwe chete sezvinobvira. Batanidza mitsara ye capacitors kune yepasi trace (inozonzi "ground shield") padivi rechikamu. Kuti uwane rumwe ruzivo nezve ground shield, tarisa kuchikamu 2.2.2. Kana ma capacitor asingagone kuiswa uchishandisa yaanofarira kuiswa, shandisa kuiswa kunoratidzwa muFigure 8.
6. Kuti uderedze parasitic capacitance pakati peXCIN neXCOUT, sanganisira pasi trace pakati pe resonator neMCU.

Mufananidzo 5. ExampLe yeInofarirwa Kuiswa uye Routing yeXCIN uye XCOUT, LQFP Packages

Mufananidzo 6. ExampLe yeInofarirwa Kuiswa uye Routing yeXCIN uye XCOUT, LGA Packages

Mufananidzo 7. ExampLe yeInofarirwa Kuiswa uye Routing yeXCIN uye XCOUT, BGA Packages

Mufananidzo 8. Example yeAlternate Placement uye Routing yeXCIN uye XCOUT

Ground Shield
Chengetedza resonator yekristaro ine track yepasi. Chinyorwa chinotevera chinotsanangura pfungwa maererano neground shield. Mufananidzo 9, Mufananidzo 10, uye Mufananidzo 11 inoratidza nzira yekareamples pasuru yega yega. Nhamba dzekuzivikanwa mumufananidzo wega wega dzinoreva runyorwa urwu.

1. Rongedza nhovo yepasi pane imwecheteyo sekristaro resonator trace routing.
2. Ita kuti pasi shield trace width inokwana 0.3 mm uye siya 0.3 kusvika 2.0 mm gap pakati pevhu shield uye mamwe mavara.
3. Rongedza nhovo yepasi padyo nepini yeVSS paMCU sezvinobvira uye ive nechokwadi chekuti hupamhi hwekutevera hunosvika 0.3 mm.
4. Kuti udzivise ikozvino kuburikidza nenhoo yevhu, gadzira shield yevhu uye pasi pabhodhi pedyo nepini yeVSS pabhodhi.

Mufananidzo 9. Rondedzera Example yeGround Shield, LQFP Packages

Mufananidzo 10. Rondedzera Example yeGround Shield, LGA Packages

Mufananidzo 11. Rondedzera Example yeGround Shield, BGA Packages

Pasi Pasi

Multilayered Boards Kanenge 1.2 mm Kukora
Pamabhodhi anokwana kuita 1.2 mm mukobvu, isai pasi pasi padivi resolder (inozonzi pasi pasi) yenzvimbo yekristaro resonator.
Rondedzero inotevera inotsanangura mapoinzi paunenge uchigadzira bhodhi rine multilayered rinenge 1.2 mm gobvu. Mufananidzo 12, Figure 13, uye Figure 14 inoratidza nzira examples kune yega yega package. Nhamba dzekuzivikanwa mumufananidzo wega wega dzinoreva runyorwa urwu.

1. Usaisa chero zvisaririra muzvikamu zvepakati zvekristaro resonator nzvimbo. Usaisa kunze kwemagetsi emagetsi kana mitsara yepasi munzvimbo ino. Usapfuure zviratidzo zvechiratidzo munzvimbo ino.
2. Ita pasi pasi rive rakakura 0.1 mm kupfuura nhovo yepasi.
3. Batanidza pasi pasi pane solder chete kune yevhu shield padivi rechikamu usati waibatanidza nepini yeVSS.

Mamwe manotsi

• Kune LQFP neTFLGA mapakeji, ingobatanidza nhovo yepasi pasi pechikamu chechikamu chebhodhi. Batanidza pasi pasi kune pini yeVSS kuburikidza nenhoo yepasi. Usabatanidza pasi pasi kana pasi shield kune imwe pasi kunze kwepini yeVSS.
• Kune LFBGA mapakeji, batanidza pasi pasi zvakananga kuVSS pini. Usabatanidza pasi pasi kana pasi shield kune imwe pasi kunze kwepini yeVSS.

Mufananidzo 12. Kufambisa Example Kana Multilayered Board iri Inenge 1.2 mm Yakakora, LQFP Packages

Mufananidzo 13. Kufambisa Example Kana Multilayered Board iri Kanenge 1.2 mm Kukora, LGA Packages

Mufananidzo 14. Kufambisa Example Kana Multilayered Board iri Kanenge 1.2 mm Gobvu, BGA Packages

Multilayered Boards Ari pasi pe 1.2 mm Kukora
Izvi zvinotevera zvinotsanangura mapoinzi paunenge uchigadzira multilayered board iri pasi pe 1.2 mm gobvu. Mufananidzo 15 unoratidza ex yenziraample.

Usaisa kunze chero kuteedzera kune mamwe maseru kunze kwechikamu chikamu cheiyo crystal resonator nzvimbo. Usaisa kunze kwemagetsi emagetsi uye mitsara yepasi munzvimbo ino. Usapfuure zviratidzo zvechiratidzo munzvimbo ino.

Mufananidzo 15. Kufambisa Example Kana Multilayered Board iri Isingasviki 1.2 mm Kukora, LQFP Packages

Dzimwe Pfungwa
Rondedzero inotevera inotsanangura mamwe mapoinzi ekufunga, uye Mufananidzo 16 unoratidza ex yenziraample kana uchishandisa LQFP package. Iwo mapoinzi akafanana anoshanda kune chero rudzi rwepasuru. Nhamba dzekuzivikanwa mumufananidzo dzinoreva runyorwa urwu.

1. Usaise iyo XCIN uye XCOUT inoteedzera padyo nemateki ane shanduko huru mune zvazvino.
2. Usafambise iyo XCIN uye XCOUT inoteedzana nemamwe masaini ezviratidzo, seaya emapini ari padyo.
3. Mateki emapini ari padhuze neXCIN uye XCOUT mapini anofanirwa kuendeswa kure neXCIN uye XCOUT mapini. Rongedza zviteshi wakananga pakati peMCU kutanga, wobva waendesa zviteshi kure neXCIN uye XCOUT mapini. Izvi zvinokurudzirwa kudzivirira kufambiswa kwemateki anofanana neiyo XCIN uye XCOUT traces.
4. Rongedza yakawanda yepasi trace padivi rezasi reMCU sezvinobvira.

Mufananidzo 16. Kufambisa Example kune Mamwe Mapoinzi, LQFP Package Example

Main Clock Resonator
Ichi chikamu chinotsanangura mapoinzi ekufambisa wachi huru resonator. Mufananidzo 17 unoratidza ex yenziraample.

• Chengetedza wachi huru resonator ine pasi.
• Usabatanidza nhovo yepasi yewachi huru resonator kune pasi shield ye sub-clock. Kana iyo huru wachi yepasi shield yakabatana zvakananga kune sub-wachi yepasi shield, pane mukana wekuti ruzha kubva kuhombe wachi resonator inogona kupfuudza nekukanganisa sub-wachi.
• Paunenge uchiisa uye uchifambisa iyo huru wachi resonator, tevera nhungamiro imwechete sekutsanangurwa kweiyo sub-clock oscillator.

Mufananidzo 17. Kufambisa Example PaKudzivirira Main Clock Resonator ine Ground Shield

Routing – Mhosho dzekudzivisa
Paunenge uchifambisa sub-clock circuit, chenjerera kudzivirira chero ipi zvayo yezvibodzwa zvinotevera. Kufambisa zviteshi neimwe yeiyi nyaya kunogona kuita kuti iyo yakaderera CL resonator isatenderere nemazvo. Mufananidzo 18 unoratidza ex yenziraample uye inonongedza kukanganisa kwenzira. Nhamba dzekuzivikanwa mumufananidzo dzinoreva runyorwa urwu.

1. XCIN uye XCOUT inotsvaga inoyambuka mamwe masaini echiratidzo. (Ngozi yekutadza kushanda.)
2. Observation pini (test points) dzakanamirwa kuXCIN uye XCOUT. (Ngozi ye oscillation kumira.)
3. XCIN uye XCOUT waya dzakareba. (Ngozi yekutadza kushanda kana kuderera kwechokwadi.)
4. Chidzitiro chepasi hachifukidzi nzvimbo yose, uye apo pane nhovo yepasi, nzira yacho yakareba uye yakamanikana. (Inokanganiswa zviri nyore neruzha, uye pane njodzi yekuti huchokwadi huchadzikira kubva pasi ungangoita musiyano unogadzirwa neMCU uye yekunze capacitor.)
5. Ground shield ine akawanda VSS yekubatanidza kuwedzera kune VSS pini. (Njodzi yekukanganisa kushanda kubva kuMCU ikozvino inoyerera nepanhovo yevhu.)
6. Simba rekupa kana pasi pasi pasi peiyo XCIN uye XCOUT traces. (Njodzi yekurasikirwa newachi kana oscillation kumira.)
7. Tsanangudzo ine mhepo yakakura inofambiswa pedyo. (Ngozi yekutadza kushanda.)
8. Tsanangudzo dzakafanana dzepini dziri pedyo dziri pedyo uye dzakareba. (Njodzi yekurasikirwa newachi kana oscillation kumira.)
9. Miti yepakati inoshandiswa pakufambisa. (Ngozi ye oscillation maitiro ari kudzikira kana masaini ari kushanda zvisizvo.)

Mufananidzo 18. Kufambisa Example Kuratidza Njodzi Yakakwirira YeKushanda Kwakashata Nekuda Kweruzha

Reference Oscillation Circuit Constants uye Verified Resonator Operation
Tafura 1 inonyora mareferensi oscillation circuit constants for verified crystal resonator operation. Mufananidzo 1 pakutanga kwegwaro rino rinoratidza example redunhu reiyo yakasimbiswa resonator mashandiro.

Tafura 1. Reference Oscillation Circuit Constants for Verified Resonator Operation

Mugadziri	Series	SMD/ Inotungamira	Kakawanda (kHz)	CL (pF)	CL1(pF)	CL2(pF)	Rd(kΩ)
Kyocera	ST3215S B	SMD	32.768	12.5	22	22	0
				9	15	15	0
				6	9	9	0
				7	10	10	0
				4	1.8	1.8	0

Ziva kuti hazvisi zvese RA MCU zvishandiso zvakanyorwa paKyocera websaiti, uye sub-wachi oscillator kurudziro haina kunyorwa kune akawanda RA MCU zvishandiso. Dhata iri patafura iyi inosanganisira kurudziro yemamwe anofananidzwa Renesas MCU zvishandiso.

Iyo yakasimbiswa resonator mashandiro uye referensi oscillation wedunhu magadzirirwo akanyorwa pano anobva paruzivo kubva kumugadziri we resonator uye haana kuvimbiswa. Sezvo mareferensi oscillation wedunhu masisitimu zviyero zvakaongororwa pasi pemamiriro akatarwa nemugadziri, hunhu hwakayerwa mushandisi sisitimu inogona kusiyana. Kuti uwane optimum referensi oscillation redunhu zvigadziriso zvekushandisa mune chaiyo mushandisi sisitimu, bvunza nemugadziri we resonator kuti aite ongororo padunhu chairo.
Mamiriro ari muchimiro aya mamiriro ekutenderedza resonator yakabatana neMCU uye haisi mamiriro ekushanda eMCU pachayo. Tarisa kune zvakatemwa mune zvemagetsi maitiro kune ruzivo nezve MCU yekushanda mamiriro.

Clock Crystal Kururama Measurement

• Sezvakakurudzirwa nevagadziri vekristaro wachi uye Renesas (mune imwe neimwe MCU Hardware User's Manual), iko iko kuita kwewachi crystal circuit inosanganisira 2 kurodha capacitors (CL1 uye CL2 mudhayagiramu). Zvikamu zvakapfuura zvegwaro iri zvinovhara sarudzo yecapacitor. Aya ma capacitor anokanganisa zvakananga kurongeka kwewachi frequency. Kurodha capacitor makoshero akanyanya kukwira kana kuderera zvakanyanya anogona kuve nemhedzisiro yakakosha pakurongeka kwenguva refu kwewachi, zvichiita kuti wachi isavimbike. Kukosha kweaya capacitors kunotarirwa nekubatanidzwa kwekristaro mudziyo kududzira uye bhodhi marongero, tichifunga nezverasika capacitance yePCB uye zvikamu zviri munzira yewachi.
• Nekudaro, kuti uone iko kurongeka kwewachi yedunhu, iyo wachi frequency inofanirwa kuyerwa pane chaiyo hardware. Kuyera kwakananga kwewachi yedunhu kunenge kwave kunokonzeresa kuyerwa kwakashata. Hukoshi hwemacapacitor ekurodha huri pakati pe5 pF kusvika 30 pF, uye zvakajairwa oscilloscope probe capacitance values ​​zvinowanzo muchikamu che5 pF kusvika 15 pF. Iyo yekuwedzera capacitance yeprobe yakakosha kana ichienzaniswa neyekurodha capacitor kukosha uye ichatsvedza kuyerwa, zvichitungamira kune zvisiri izvo. Iyo yakaderera kukosha capacitance oscilloscope probes ichiri yakatenderedza 1.5 pF capacitance yeyakanyanya kurongeka probes, izvo zvingangove zvichikanganisa mhedzisiro yekuyerwa.
• Iyi inotevera inzira inokurudzirwa yekuyera wachi frequency kurongeka pane MCU board zvigadzirwa. Iyi nzira inobvisa kukanganisa kuyerwa kwaungangoita nekuda kwecapacitive kurodha yakawedzerwa neyeyero probe.

Yakakurudzirwa Test Procedure
Renesas RA microcontrollers inosanganisira kamwechete CLKOUT pini. Kubvisa iyo capacitive kurodha yeprobe pane wachi yekristaro masiginecha, iyo microcontroller inogona kurongerwa kupfuudza wachi yekristaro kupinza kune CLKOUT pini. Bhodhi reMCU rinoedzwa rinofanira kusanganisira gadziriro yekuwana iyi pini yekuyera.

Zvinodiwa Zvikamu

• Imwe kana anopfuura MCU mabhodhi kuti mudziyo kuyerwa.
• Zvirongwa uye emulation maturusi kuti mudziyo kuyerwa.
• A frequency counter ine angangoita 6 manhamba echokwadi, ine calibration chaiyo.

Test Method

1. Ronga iyo MCU yekubatanidza wachi yekristaro yekuisa ye sub-wachi wedunhu kune CLKOUT pini yeMCU.
2. Batanidza frequency counter kune CLKOUT pini yeMCU uye ivhu rakakodzera. USA batanidza iyo frequency counter zvakananga kune wachi yekristaro wedunhu.
3. Gadzirisa frequency counter kuyera frequency paCLKOUT pini.
4. Bvumira frequency counter kuyera frequency kwemaminetsi akati wandei. Rekodha frequency yakayerwa.

Iyi nzira inogona kushandiswa kune ese ari maviri sub-wachi uye huru wachi yekristaro oscillators. Kuti uone mhedzisiro yekurodha capacitor kukosha pawachi crystal kurongeka, bvunzo inogona kudzokororwa nemhando dzakasiyana dzekutakura capacitors. Sarudza hunhu hunopa mafambisirwo ewachi yewachi yega yega.
Inokurudzirwawo kudzokorora maitiro pamapuranga akawanda emhando imwe chete kuti uvandudze kutendeseka kwezviyero.

Frequency Accuracy Masvomhu
Frequency kurongeka kunogona kuverengerwa uchishandisa mafomula anotevera.

• fm = kuyerwa frequency
• fs = yakakodzera chiratidzo frequency
• fe = frequency kukanganisa
• fa = frequency kurongeka, kazhinji inoratidzwa muzvikamu pabhirioni (ppb)

Frequency kukanganisa kunogona kuratidzwa se

Frequency kurongeka kunogona kuratidzwa se Frequency kurongeka kunogonawo kuratidzwa mukutsauka kubva panguva chaiyo. Kutsauka, mumasekonzi pagore, kunogona kuratidzwa se

Websaiti uye Tsigiro
Shanyira zvinotevera URLs kudzidza nezve zvakakosha zvemhuri yeRA, kurodha zvinhu uye zvinyorwa zvine hukama, uye kuwana rutsigiro.

• RA Chigadzirwa Ruzivo www.renesas.com/ra
• RA Product Support Forum www.renesas.com/ra/forum
• RA Flexible Software Package www.renesas.com/FSP
• Renesas Support www.renesas.com/support

Revision History

Rev.	Date	Tsanangudzo
		Page	Summary
1.00	Ndira 07.22	—	Kusunungurwa kwekutanga
2.00	Zvita 01.23	18	Yakawedzerwa chikamu 3, Clock Crystal Kururama Measurement

Cherechedzai

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2. Renesas Electronics pano inorambira pachena chero waranti yekupokana uye mhosva yekutyorwa kana chero zvimwe zvichemo zvinosanganisira patents, copyrights, kana dzimwe kodzero dzepfungwa dzevatatu mapato, kana kubva mukushandiswa kweRenesas Electronics zvigadzirwa kana ruzivo rwehunyanzvi rwakatsanangurwa mugwaro rino, kusanganisira asi kwete kugumira kune, iyo chigadzirwa data, kudhirowa, machati, zvirongwa, algorithms, uye application examples.
3. Hapana rezinesi, kutaura, kurehwa kana neimwe nzira, kunopihwa pano pasi pese patents, macopyright kana mamwe kodzero dzenjere dzeRenesas Electronics kana vamwe.
4. Iwe uchave nebasa rekuona kuti ndeapi marezinesi anodiwa kubva kune chero vechitatu mapato, uye kuwana marezinesi akadaro ekupinza zviri pamutemo, kunze, kugadzira, kutengesa, kushandiswa, kugovera kana kumwe kuraswa kwechero zvigadzirwa zvinosanganisira Renesas Electronics zvigadzirwa, kana zvichidikanwa.
5. Iwe hausi kuzoshandura, kugadzirisa, kukopa, kana kudzosera kumashure mainjiniya chero Renesas Electronics chigadzirwa, chingave chiri chose kana chikamu. Renesas Electronics inorambidza chero uye yese mhosva kune chero kurasikirwa kana kukuvadzwa kunoitwa newe kana mapato echitatu kubva mukushandurwa, kugadziridzwa, kukopa kana kudzosera kumashure mainjiniya.
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   • “Standard”: Makombiyuta; midziyo yehofisi; midziyo yekutaurirana; bvunzo uye kuyerwa midziyo; odhiyo uye midziyo yekuona; kumba
     midziyo yemagetsi; midziyo yemuchina; midziyo yemagetsi yemunhu; marobhoti eindasitiri; etc.
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     Kunze kwekunge yakasarudzwa sechigadzirwa chakavimbika chepamusoro kana chigadzirwa chenzvimbo dzakaomarara muRenesas Electronics data sheet kana imwe Renesas Electronics gwaro, Renesas Electronics zvigadzirwa hazvina kurongerwa kana kupihwa mvumo yekushandiswa mune zvigadzirwa kana masisitimu anogona kuisa njodzi kuhupenyu hwevanhu kana kukuvara kwemuviri (midziyo kana masisitimu ekutsigira hupenyu hwekugadzira; kuiswa kwekuvhiyiwa; zvichingodaro), kana kuti kungakonzera kukuvadzwa kwepfuma kwakakomba (hurongwa hwemuchadenga; zvinodzokorora pasi pegungwa; masisitimu ekudzora simba renyukireya; masisitimu ekudzora ndege; masisitimu echirimwa makuru; midziyo yehondo; nezvimwewo). Renesas Electronics inorambidza chero uye mhosva yese yekukuvadzwa kana kurasikirwa kwakakonzerwa newe kana chero mapato echitatu kubva mukushandiswa kwechero Renesas Electronics chigadzirwa chisingaenderane nechero Renesas Electronics data sheet, bhuku remushandisi kana rimwe gwaro reRenesas Electronics.
7. Hapana semiconductor chigadzirwa chakachengeteka zvachose. Zvisineyi chero matanho ekuchengetedza kana maficha anogona kuitwa muRenesas Electronics Hardware kana software zvigadzirwa, Renesas Electronics haizove nemhosva zvachose inobva mukusagadzikana chero kupi zvako kana kuchengetedza kutyora, kusanganisira asi isingaganhurirwe kune chero kupi kusingatenderwe kuwana kana kushandiswa kweRenesas Electronics chigadzirwa. kana sisitimu inoshandisa chigadzirwa cheRenesas Electronics. RENESAS ELECTRONICS HAIYI KUVIMBISA KANA KUVIMBISA YEKUTI RUBATSIRE ZVAKAITWA NEE ELECTRONICS, KANA CHESE MASITIMIRO AKASIKIRWA ACHISHANDISA RENESAS ELECTRONICS ZVINHU ZVICHAVA ZVISINGABVIKIRE KANA KUSIYANA KUBVA KUUori, KURWISA, MABHIRASI, KUPINDA, KUPINDA, KUPINDA, KURWIRA ) RENESAS ELECTRONICS INORAMBA CHESE UYE CHESE BASA KANA KUTI MHOMO IRI KUBVA KUBVA KANA KUNYORERA NEZVINHU ZVINHU ZVINHU. ZVIMWE ZVAKAWANDA, ZVINO ZVINOGIDZWA NEMUTEMO UNO shanda, REENESAS ELECTRONICS ZVINOTAURWA CHESE UYE CHESE WARRANTI, ZVINOTAURWA KANA ZVINOREVEDZWA, NERUEMERE KURUGWARO UCHI UYE NECHE CHENZVI CHINHU KANA KUFAMBA NESOFUTI, ZVISINA KUPIWA ZVINHU ZVINHU. CHIMWE CHINANGWA.
8. Paunenge uchishandisa Renesas Electronics zvigadzirwa, tarisa kune yazvino chigadzirwa ruzivo (mapepa edatha, zvinyorwa zvevashandisi, zvinyorwa zvekushandisa, "General Notes dzeKubata uye Kushandisa Semiconductor Devices" mubhuku rekuvimbika, nezvimwewo), uye ive nechokwadi chekuti mamiriro ekushandisa ari mukati meiyo tambo. inotsanangurwa neRenesas Electronics maererano nehukuru hwezviyero, kushanda kwemagetsi voltage renji, maitiro ekupisa kupisa, kuisirwa, nezvimwewo Renesas Electronics inobvisa chero uye yese mhosva kune chero kusashanda, kutadza kana tsaona inomuka kubva mukushandiswa kweRenesas Electronics zvigadzirwa kunze kweiyo yakatarwa siyana.
9. Kunyangwe Renesas Electronics ichiedza kuvandudza kunaka uye kuvimbika kweRenesas Electronics zvigadzirwa, semiconductor zvigadzirwa zvine chaiwo hunhu, sekuitika kwekutadza pane imwe chiyero uye kusashanda pasi pemamwe mamiriro ekushandisa. Kunze kwekunge yakasarudzwa sechigadzirwa chakavimbika chepamusoro kana chigadzirwa chenzvimbo dzakaomarara muRenesas Electronics data sheet kana imwe Renesas Electronics gwaro, Renesas Electronics zvigadzirwa hazvienderane neradiation kuramba dhizaini. Iwe une basa rekushandisa matanho ekuchengetedza kudzivirira mukana wekukuvara kwemuviri, kukuvara kana kukuvara kunokonzerwa nemoto, uye / kana njodzi kune veruzhinji kana paine kutadza kana kusashanda kwezvigadzirwa zveRenesas Electronics, senge kuchengetedza dhizaini yehardware uye. software, kusanganisira asi isina kuganhurirwa kune redundancy, kutonga kwemoto nekudzivirira kusashanda zvakanaka, kurapwa kwakakodzera kwekuderera kwekuchembera kana chero mamwe matanho akakodzera. Nekuti kuongororwa kwemicrocomputer software chete kwakaoma uye hakushande, iwe une basa rekuongorora kuchengetedzwa kwezvigadzirwa zvekupedzisira kana masisitimu anogadzirwa newe.
10. Ndokumbira ubate hofisi yekutengesa yeRenesas Electronics kuti uwane ruzivo rwezvemamiriro ekunze senge kuenderana kwezvakatipoteredza kwechimwe nechimwe Renesas Electronics chigadzirwa. Iwe une basa rekunyatsoongorora uye zvakakwana mitemo inoshanda nemirairo inotonga kubatanidzwa kana kushandiswa kwezvinhu zvinodzorwa, kusanganisira pasina muganhu, EU RoHS Directive, uye kushandisa Renesas Electronics zvigadzirwa mukutevedzera iyi yese mitemo inoshanda. Renesas Electronics inobvisa chero uye yese mhosva yekukuvadzwa kana kurasikirwa kunoitika nekuda kwekusatevedza kwako mitemo nemirau inoshanda.
11. Zvigadzirwa zveRenesas Electronics uye matekinoroji hazvizoshandiswe kana kuisirwa mune chero zvigadzirwa kana masisitimu ayo kugadzira, kushandisa, kana kutengesa kunorambidzwa pasi pemitemo ipi neipi inoshanda yepamba kana yekunze kana mirau. Iwe unozotevedzera chero mitemo yekudzora kunze kwenyika nemirairo yakashambadzwa uye inotungamirwa nehurumende dzechero nyika dzine masimba pamusoro pemapato kana kutengeserana.
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• (Cherechedza1) “Renesas Electronics” sekushandiswa kwarakaitwa mugwaro iri zvinoreva Renesas Electronics Corporation uye inosanganisirawo masangano ayo anodzorwa zvakananga kana zvisina kunanga.
• (Cherechedza2) “Renesas Electronics chigadzirwa(s)” zvinoreva chero chigadzirwa chakagadzirwa kana kugadzirwa neRenesas Electronics.

(Rev.5.0-1 Gumiguru 2020)

Corporate Headquarter

• TOYOSU FORESIA, 3-2-24 Toyosu,
• Koto-ku, Tokyo 135-0061, Japan
• www.renesas.com

Trademarks
Renesas uye Renesas logo zviratidzo zveRenesas Electronics Corporation. Ese matrademark uye marejisheni akanyoreswa zvinhu zvevaridzi vazvo.

Contact information
Kuti uwane rumwe ruzivo nezvechigadzirwa, tekinoroji, iyo yazvino-yezvino vhezheni yegwaro, kana hofisi yako yepedyo yekutengesa, ndapota shanya: www.renesas.com/contact/.

© 2023 Renesas Electronics Corporation. Kodzero dzese dzakachengetwa.

Zvinyorwa / Zvishandiso

RENESAS RA MCU Series RA8M1 Arm Cortex-M85 Microcontrollers [pdf] Bhuku reMushandisi RA MCU Series RA8M1 Arm Cortex-M85 Microcontrollers, RA MCU Series, RA8M1 Arm Cortex-M85 Microcontrollers, Cortex-M85 Microcontrollers, Microcontrollers

References

• User Manual