Microsemi In-Circuit FPGA Debug

Product Information

Zvinotsanangurwa

• Rudzi rweChishandiso: Microsemi SmartFusion2 SoC FPGA
• Zuva Rekuburitswa: Chivabvu 2014
• Kugadzirisa Kugona: In-Circuit FPGA Debug, Embedded Logic Analyzer
• Maximum Data Capture Frequency: Kusvika ku100MHz

Abstract
FPGAs ane simba dhizaini zvinhu mumasisitimu akaiswa ane akawanda dhizaini advantages, asi michina iyi inogona kuva nemagadzirirwo akaomarara ane dzakaoma dhizaini nyaya dzinoda kugadziriswa. Kuteedzera pasi dhizaini nyaya senge zvikanganiso zvetsanangudzo, matambudziko ekudyidzana kwehurongwa, uye kukanganisa kwehurongwa hwenguva kunogona kuve dambudziko. Iko kuiswa kwe-in-circuit debug kugona muFPGA kunogona kuvandudza zvakanyanya hardware debug, uye kudzivirira maawa akawanda ekuvhiringidzika. Iri bepa rinotsanangura akati wandei akasiyana maitiro e-in-circuit debug yeFPGAs, inoratidza akakosha kutengeserana, uye kuburikidza neex.ample dhizaini, yakanangidzirwa kuMicrosemi SmartFusion®2 SoC FPGA mudziyo, icharatidza maitiro matsva anogona kushandiswa kukurumidza kugadzirisa uye kuyedza.

Nhanganyaya

FPGAs dzakapararira uye dzine simba dhizaini zvinhu uye dzave kuwanikwa mune dzinenge dzese dzakamisikidzwa system. Nekuwedzera kugona, kusanganisirwa kweakaomarara pa-chip anoshanda zvidhinha uye advanced serial interfaces aya maturusi anogona zvakare kuve nematambudziko ekugadzira akaomarara anoda kugadziriswa. Kuteedzera pasi nyaya dzakaita senge mashandiro ekutsanangura kukanganisa (paiyo FPGA kana sisitimu level), mashandiro ehurongwa hwekudyidzana matambudziko, sisitimu nyaya dzenguva, uye kusaina kutendeka nyaya pakati peICs (seruzha, crosstalk, kana kuratidzwa) zvese zvinonyanya kuoma kana uchishandisa advanced FPGAs. Simulation zvirokwazvo rubatsiro rwakakura mukuona matambudziko mazhinji ekugadzira, asi kudyidzana kwakawanda kwepasirese hakuzoratidzike kusvika dhizaini yaitwa muhardware. Matekiniki akati wandei ekugadzirisa madhizaini akaomarara akagadzirwa kuti hurongwa huve nyore. Kunyatsonzwisisa kweimwe neimwe yeaya akakosha matekiniki, kusanganisira akasiyana advantages uye disadvanvantages, inobatsira kana uchifunga kuti ndeipi nzira kana musanganiswa wematekiniki anokodzera imwe dhizaini.
Anove example FPGA dhizaini, yakanangwa kune Microsemi SmartFusion2 SoC FPGA mudziyo, inogona kushandiswa kuratidza imwe advan.tages uye disadvanvantages yeaya akajairwa matekiniki pamwe neazvino-in-circuit debug kugona. Uyu mufananidzo example icharatidza mashandisirwo aya akasiyana matekiniki anogona kushandiswa kukurumidzira kuzivikanwa uye kubviswa kwezvinetso zvehardware panguva yehardware debug.

Nei FPGA iri Debugging Iri Yakakosha Aspect yeSystem Dhizaini uye Development?
MaFPGA ane maviri makuru ekushandisa mamodheru anoasiyanisa kubva kune mamwe magadzirirwo zvinhu. MaFPGA anogona kushandiswa muchigadzirwa chekugadzira kana anogona kushandiswa semotokari yekusimudzira kuratidza kunze kana prototype yekugadzira dhizaini pfungwa. Kana ichishandiswa semotokari yekugadzira, maFPGA anogona kuve akanyanya kuchinjika chinangwa kupfuura ASIC kana CPU-yakavakirwa kugadzira mota. Izvi zvakanyanya kukosha kune dhizaini nyowani, iyo isati yaitwa muhardware parizvino. Madhizaini ane akasiyana ezvivakwa sarudzo anogona kugadzirwa nyore uye kuyedzwa kuitira kuti iyo yakakwana dhizaini izivikanwe. MaFPGA ane on-chip processors (SoC FPGAs) anoita kuti zvikwanisewo kutengesa-kure CPU-based processing nehardware yakabatsirwa FPGA-based acceleration function. Aya advantages inogona kuderedza zvakanyanya nguva inodiwa pakugadzira, kusimbiswa, kuyedzwa, uye kutadza kuongororwa kwekuvandudzwa kwechigadzirwa.
Kana ichishandiswa prototyping dhizaini, pamwe yekugadzira ASIC, FPGA kuchinjika ndiyo yakakosha bhenefiti. Iyo chaiyo hardware chikuva, kunyangwe iyo isingamhanye nekumhanya kuzere, inoita kuti zvive nyore kuwana yakadzama system performance metrics, throughput yekuongorora dhata uye yekuvaka humbowo-hwe-pfungwa mhinduro. FPGA rutsigiro rwekuomeswa kwekuita kwemaindasitiri akajairwa mabhazi (sePCIe®, Gigabit Ethernet, XAUI, USB, CAN, uye mamwe) inorerutsa kuyedzwa kunoenderana neiyi nzira. Mhuri nyowani dzeFPGAs dzine pa-chip ARM processors (SoC FPGAs), inoita kuti zvive nyore kuita prototype mashandisirwo nema processor akadzamidzirwa. Yakambogadzirwa processor kodhi inogona kuendeswa kune iyo prototype uye nyowani kodhi yakagadzirwa mukuenderana neiyo hardware dhizaini yekuedza.

Uku kusanganiswa kweiyo yakajairwa processor ine yakajairwa interface mabhasi inoita kuti zvikwanise kukwidziridza yakakura ecosystem yeanowanikwa kodhi maraibhurari, madhiraivha, anoshanda APIs, Real Time Operating Systems, uye kunyange akazara Operating Systems kuti zvikurumidze kugadzira prototype inoshanda. Pamusoro pezvo, kana dhizaini yasimbiswa, iyo FPGA prototype inogona kushandiswa kutora yakakura simulation bvunzo seti (yekukurudzira uye mhinduro) inoratidza chaiyo system data. Aya ma data seti anogona kuve akakosha mukugadzira ekupedzisira simulations yeASIC kana kumwe kuita kwekugadzira. The advantages ekushandisa FPGA seye dhizaini prototype inogona kuderedza zvakanyanya nguva yekugadzira, kusimbiswa, kuyedzwa, uye kutadza kuongorora kwekupedzisira chigadzirwa kuita.
Mune ese ari maviri aya akajairwa FPGA shandisa modhi kuchinjika kweFPGA sechinangwa chekugadzira ndiyo kiyi advan.tage. Izvi zvinoreva kuti shanduko zhinji dzekugadzira uye kudzokororwa kwaizove kwakajairwa, uye nekudaro kugona kukurumidza kugadzirisa dhizaini zvikanganiso kungave kwakakosha kugonesa akawanda magadzirirwo sarudzo sezvinobvira. Pasina hunyanzvi hwekugadzirisa debug yakawanda yeadvantage yeFPGA dhizaini kuchinjika ichaderedzwa nekuwedzera debugging nguva inodiwa. Sezvineiwo, maFPGA anogonawo kupa mamwe maficha ehardware anorerutsa zvakanyanya-chaiyo-nguva debugging. Tisati tatarisa hunyanzvi uhu, ngatitangei titarise mhando dzenyaya dzinowanzo kugadzirwa neFPGA dhizaini saka isu tine kwakakodzera kumashure kwekuongorora mashandiro uye kutengeserana kwakabatana kweakasiyana maturusi ekugadzirisa.

Nyaya Dzakajairwa Kana Kugadzirisa FPGA Dhizaini

Pamwe chete nehunyanzvi hwakawedzerwa hunounzwa neFPGA dzemazuva ano, iyo yakabatana yakawedzera kuomarara kunoita kuti zvinyanye kuoma kugadzira magadzirirwo asina kukanganisa. Muchokwadi, zvave zvichifungidzirwa kuti debugging inogona kutora pamusoro pe50% yeyakamisikidzwa system dhizaini kutenderera. Nekumanikidza-ku-musika kuenderera mberi nekudzvanya kutenderera kwekusimudzira, kugadzirisa kwehardware kweiyo yekutanga sisitimu kunodzoserwa kune imwe pfungwa-kazhinji kazhinji uchifunga kuti ongororo (pachacho chikamu chikuru.tage yehurongwa hwekuvandudza), inobata mabhugi ese pamberi pekutanga system kuunza-up. Ngatitarisei mashoma akajairika mhando dzemasisitimu nyaya kuti tinzwisise zviri nani matambudziko akajairika dhizaini achasangana nawo panguva yekutanga sisitimu kuunza-up.

Kukanganisa kwetsanangudzo yekushanda kunogona kuve kwakaoma zvakapetwa kaviri kuwana sezvo mugadziri asina kunzwisisa chimwe chinodiwa, saka kukanganisa kunogona kufuratirwa kunyangwe uchinyatso tarisa pane zvakarongwa. An example yezvakajairwa mashandiro ekutsanangura kukanganisa kwaizove uko shanduko yemuchina wehurumende isingapere muchimiro chakakodzera. Zvikanganiso zvinogonawo kuoneka musystem interfaces sedambudziko rekudyidzana. Interface latency, semuenzanisoample, inogona kutaurwa zvisizvo zvichikonzera kusatarisirwa kwebhafa kufashama kana kuti underflow mamiriro.
Sisitimu level yenguva nyaya ndeimwe yakajairika sosi yekukanganisa kwekugadzira. Zviitiko zveAsynchronous, kunyanya, ndizvo zvakajairika sosi yekukanganisa kana kuwiriranisa kana kuyambuka nguva domain mhedzisiro isina kunyatsotariswa. Kana uchishanda nekuchimbidza mhando dzemhosho dzinogona kunetsa uye dzinogona kuoneka zvisingaite, pamwe chete kana maitiro chaiwo edata achizviratidza. Kutyorwa kwenguva kwakawanda kunowira muchikamu ichi uye kazhinji kwakaoma, kana zvisingaite kutevedzera.

Kutyorwa kwenguva kunogonawo kuve mugumisiro wekuderera kwechiratidzo chekutendeka pakati pemaseketi akabatanidzwa, kunyanya mumasisitimu ane njanji dzemagetsi akawanda edunhu rega rega. Kutendeseka kwakaderera kwechiratidzo kunogona kukonzera ruzha rwechiratidzo, kuyambuka, kuratidza, kurodha zvakanyanya uye Electro-Magnetic Interference (EMI) nyaya dzinowanzo ratidza sekutyorwa kwenguva. Masimba ekupa magetsi, senge mapfupi (kunyanya panguva yekutanga-up kana kuvharwa-pasi), misiyano yemutoro uye kushushikana kwesimba rekubvisa simba kunogona kukonzera kukanganisa kusinganzwisisike, kazhinji kusingataridzike nyore kumashure kune magetsi sosi. Kunyangwe iyo dhizaini yakanyatso kurongeka nyaya dzekugadzira bhodhi dzinogona kukonzera kukanganisa. Majoini ekutengesa asina kunaka uye zvibatanidza zvisina kufanira, zve example, inogona kuve kunobva zvikanganiso uye inogona kunge iri tembiricha kana bhodhi nzvimbo inotsamira. Iko kushandiswa kwepamusoro FPGA kurongedza matekiniki kunogona kuita kuti zviome kuferefeta masaini pane yakadhindwa redunhu bhodhi kuenda, saka kungowana mukana kune yaunoda chiratidzo kunogona kunetsa. Kazhinji nyaya zhinji dzekugadzira hadzigadziri chikanganiso nekukasira uye dzinofanirwa kutenderera nedhizaini kusvika kukanganisa kwanyatso kuzviratidza. Kutsvaga chikanganiso chekutanga kudzokera kune chikonzero chinogona kazhinji kuve chinoshungurudza, chakaoma uye chinopedza nguva basa.

For example, kamwechete kakanganisika mushanduro tafura inogona kusakonzeresa kukanganisa kusvika mitsetse yakawanda gare gare. Zvimwe zvezvishandiso zvatichakurukura gare gare mubepa rino, izvo zvinoshandisa zvakatsaurirwa mu-circuit debug hardware, zvakanangwa pakuita izvi 'kuvhima bug' nekukurumidza uye nyore. Tisati tapinda mune zvese zvezvishandiso izvi, ngatitangei titarise yakakurumbira software-based debugging tekinoroji simulation kuitira kuti tinzwisise zviri nani advan.tages uye disadvanvantages yekushandisa simulation kugadzirisa debugging.

Kushandisa Simulation yeDebugging
Kazhinji mudhizaini yekufananidza, zvese-chaiyo-hupenyu zvikamu mukati nekunze kwedhizaini zvinoteedzerwa masvomhu semapurogiramu esoftware ayo anoitwa achitevedzana pane yakajairwa CPU. Kushandisa zvakasiyana-siyana zvekukurudzira kune dhizaini uye kutarisa zvinotarisirwa kubuda zvichipesana neakateedzerwa magadzirirwo akabuda, inzira iri nyore yekubata zvakanyanya pachena zvikanganiso zvekugadzira. Hwindo rinoratidza muitiro wekutevedzera rinopihwa muMufananidzo 1 pazasi. Iyo yakajeka advantage yekuenzanisa mavhesi Hardware-based debugging, ndeyekuti simulation inogona kuitwa musoftware-hapana chaiyo hardware-based design uye testbench inodiwa. Simulation inogona kukurumidza kubata zvikanganiso zvakawanda zvekugadzira, kunyanya izvo zvine chekuita neasina kutaurwa, kusanzwisisa kwezvinodiwa interface, zvikanganiso zvebasa, uye mamwe akawanda 'akakomba' marudzi ezvikanganiso zvinoonekwa zviri nyore kuburikidza neakareruka ekusimudzira mavector.

Simulation inonyanya kushanda kana misanganiswa yakawedzera yekukurudzira inowanikwa kune mugadziri uye zvinobuda zvinozivikanwa. Muzviitiko izvi, simulation inogona kuita bvunzo inokwana yedhizaini. Nehurombo, mazhinji madhizaini haawane nyore kuwana kune yakakura bvunzo masutu uye maitiro ekuagadzira anogona kutora nguva zvakanyanya. Kugadzira bvunzo suite inovhara 100% yedhizaini hazvigoneke kune yakakura FPGA-yakavakirwa madhizaini uye mapfupi mapfupi anofanirwa kushandiswa kuyedza uye kuvhara zvakakosha zvedhizaini. Rimwe dambudziko nekuenzanisa, nderekuti haisi 'nyika chaiyo' kuita uye haigone kubata zviitiko zveasynchronous, ku-speed system kupindirana, kana kukanganisa nguva. Chekupedzisira, maitirwo ekuenzanisa anogona kunonoka uye kana kudzokororwa kwakawanda kuchidikanwa simulation inokurumidza inopedza nguva yakawanda, uye kazhinji chikamu chinodhura chekuvandudza.

Seimwe nzira (kana pamwe yakataurwa zviri nani, sekuwedzera kune simulation) Vagadziri veFPGA vakawana kuti vaigona kuwedzera debug hardware muFPGA dhizaini kuitira kuti vatarise uye vadzore masaini akakosha mukati memudziyo. Aya matekiniki akatanga kugadzirwa senge ad-hoc nzira, asi zvishoma nezvishoma akavandudza kuita yakajairwa hardware debug zano. Uku kushandiswa kwe-in-circuit debug kugona kunopa yakakosha advantages yeFPGA-yakavakirwa madhizaini uye chikamu chinotevera chinoongorora matatu anonyanya kuzivikanwa mazano uye akasiyana advan avotages uye disadvanvantages.

Yakajairwa In-Circuit Debug Maitiro eFPGAs
Maitiro akajairika ekushandisa in-circuit debug kugona muFPGAs anoshandisa yakamisikidzwa logic analyzer, yekunze bvunzo michina, kana yakatsaurirwa siginecha probe hardware yakamisikidzwa mukati meFPGA jira. Iyo yakamisikidzwa logic analyzer inowanzoitwa uchishandisa FPGA jira uye inoiswa mudhizaini. Iye JTAG chiteshi chinoshandiswa kuwana analyzer uye iyo yakatorwa data inogona kuratidzwa paPC. Kana midziyo yekuyedza yekunze ichishandiswa, dhizaini yeFPGA iri pasi pekuyedzwa inogadziridzwa kuitira kuti masaini akasarudzwa emukati eFPGA anoendeswa kumapini ekubuda. Aya mapini anogona kubva aonekwa kuburikidza nekunze bvunzo michina. Kana yakatsaurirwa chiratidzo cheprobe hardware ichishandiswa, kusarudzwa kwakakura kwemasaini emukati kunogona kuverengwa munguva chaiyo. Mamwe mashandisirwo ekuongorora anogona kutoshandiswa kunyora kunyoresa kana ndangariro nzvimbo dzichiwedzera kuwedzera debug kugona. Ngatitarisei zvakadzama pane advantages uye disadvanvantages yeimwe neimwe yemaitiro aya uye wobva watarisa kune example dhizaini kuti uone kuti nzira idzi dzakasiyana dzinogona kukanganisa sei nguva yedebugging.

In-Circuit FPGA Debug-Embedded Logic Analyzer
Pfungwa yeiyo yakadzamirirwa logic analyzer yaive yakananga mhedzisiro yead-hoc in-circuit debugging masimba ayo vagadziri vakaita pakatanga kushandiswa maFPGA. Embedded logic analyzers akawedzera hunyanzvi hutsva uye akabvisa chinodiwa kuti mugadziri agadzire analyzer yavo. Mazhinji maFPGA anopa aya masimba uye mapato echitatu anopa akajairwa analyzer (Identify®, kubva Synopsys, imwe yakakurumbira ex.ample) iyo inogona kuwirirana nyore nepamusoro-nhanho maturusi kuti uwedzere kuvandudza goho.

Iyo logic analyzer inoshanda inoiswa mukugadzira, uchishandisa FPGA jira uye yakamisikidzwa ndangariro zvivharo se trace buffers, sezvakaratidzwa muFigure 2. Zvinokonzera zviwanikwa zvinogadzirwawo kuitira kuti kupindirana kwemasaini kwakaoma kugone kusarudzwa uye kutorwa. Kuwanikwa kune analyzer yekutonga uye kuendesa data kunowanzo kuitwa kuburikidza neyakajairwa JTAG port kurerutsa interface zvinodiwa. Yakatorwa data inogona kuratidzwa paPC uchishandisa zvakajairika viewing software uye kazhinji inoratidzira logic simulator waveform kubuda viewing style.

The advantagMamiriro eiyi nzira ndeyekuti hapana mamwe mapini eFPGA I/O anoshandiswa, angori akajairwa JTAG zviratidzo. Iyo yakamisikidzwa logic analyzer IP cores inowanzove isingadhure uye mune dzimwe nguva inogona kuve sarudzo kune iripo FPGA synthesis, kana maturusi ekufananidza. Mune zvimwe zviitiko, yakamisikidzwa logic analyzer inogona kupawo zvimwe zvinobuda pane zvisina kushandiswa I/Os, kana zviri nyore. Imwe ye disadvantages kune iyi nzira ndeyekuti huwandu hukuru hweFPGA zviwanikwa zvinodiwa. Kunyanya, kana trace buffers ikashandiswa izvi zvinoderedza huwandu hwe block memory inowanikwa. Kana buffer yakakura ichidikanwa uku kuchavawo kutengeserana kunopesana nehudzamu hwendangariro (sezvo kushandiswa kwendangariro yakafara kunoguma nekudzika kwendangariro kudzika)—dambudziko guru.tage paunenge uchishandisa midziyo midiki. Zvichida dhizaini huru kune iyi tekinoroji ndeyekuti pese panoitwa gadziriso yekuongorora nzvimbo, zvinodikanwa kuunganidza uye kurongazve dhizaini. Paunenge uchishandisa mudziyo wakakura kuita uku kunogona kutora nguva yakawanda. Nekuda kwenzira iyo masaini probe akaiswa mudhizaini zvinogona kunetsa kurongedza hukama hwechiratidzo chenguva. Pamusoro pezvo, kunonoka pakati pechiratidzo chekuongorora hakuna kuenderana uye nekudaro hukama hwenguva hwakaoma kuenzanisa. Iri idambudziko rakanyanya kana uchienzanisa asynchronous masaini kana masiginecha kubva kwakasiyana nguva madomasi.

Mu-Circuit FPGA Debug - Yekunze Yekuedza Equipment
Iko kushandiswa kwe-in-circuit debug kodhi pamwe chete neyekunze bvunzo michina yaive budiriro yechisikigo apo yekunze logic analyzer yaive yatovepo yekuongorora system. Nekugadzira imwe yakareruka debug kodhi yekuona uye kusarudza yemukati masaini masaini uye oaisa kuFPGA I/Os, sezvakaratidzwa muFigure 3, zvaigoneka kukwidziridza vaongorori hunyanzvi hwepamusoro (senge mabhafa mahombe ekutsvaga, kuteedzera kwakaoma, uye akawanda. viewing sarudzo) kugadzira akareruka asi ane simba debug nharaunda. Kunyanya kuomarara kwe-mu-circuit kugona kune epamberi triggering sarudzo kunogona kuderedza huwandu hwezvinobuda zvinodiwa. For exampLe, kusarudza kero dzakananga mubhazi rakakura kungave kurambidza kana mapini ekunze achidiwa.
Kushandisa yemukati FPGA logic inoderedza zvakanyanya I/O zvinodiwa uye inogona kutotsvaga chaiyo kero mapatani (pamwe kufona uye kudzoreredza kutevedzana) kwekugadzirisa matambudziko akaomarara. Kana yakajairwa mushandisi interface iripo, izvi zvinogona kurerutsa iyo yekudzidza curve uye inovandudza goho.

The advantagEs yenzira iyi ndeyekuti inokwirisa mutengo weiyo yekunze bvunzo michina uye nekudaro hapana yakawedzerwa mutengo wekushandisa. Mamwe debug wedunhu IP cores anowanikwa kubva kune vanogadzira michina kana FPGA vagadziri, uye inogona kuve yakaderera mutengo kana mahara. Huwandu hweFPGA zviwanikwa zvinodikanwa kuita iyo yekusarudzika yechiratidzo idiki kwazvo, uye sezvo basa rekutsvaga richiitwa uchishandisa yekunze logic analyzer, hapana block memory inodiwa. Sezvo sarudzo yekufunga isingadhure, nhamba huru yematanho ane yakakura triggering inogona kutsigirwa zvakare. Iyo logic analyzer inogona kushanda mune ese ari maviri eTiming modhi uye State modhi iyo inobatsira kutsaura dzimwe nyaya dzenguva.
Izvo zvisina kufaniratages yeiyi nzira inogona kusanganisira kudiwa kwekutenga logic analyzer, kana imwe isati yapihwa kupurojekiti. Dambudziko iritage inogona kukwana kuodza mwoyo nzira iyi muzviitiko zvakawanda. Ziva zvisinei, kuti dzimwe dzepasi-mutengo logic analyzer sarudzo dziri kuwanikwa dzinoshandisa PC kana piritsi rekuratidzira, zvichiita kuti iyi sarudzo ive inodhura-inoshanda kune zviri nyore debug zvinodiwa.
Huwandu hweFPGA mapini anopedzwa anogona kuve imwe disadvantage uye kana mabhazi akakura achifanirwa kucherechedzwa, kuronga kwakakosha kwekumisikidzwa kwebhodhi uye kuwedzerwa kwezvibatanidza zvinokonzeresa zvinodikanwa. Ichi chinodiwa kazhinji chinonetsa kufanotaura kutanga muchikamu chekugadzira uye kumwe kuoma kusingadiwi. Zvakafanana neyakamisikidzwa logic analyzer nzira yekunze bvunzo zano inoda kudzokorodza uye kurongazve dhizaini, kana kuyedza kwega kwega kuchidikanwa.

The common disadvantages emaitiro maviri aya-kushandiswa kwe-on-chip zviwanikwa (izvo zvinogona zvakare kukanganisa dhizaini kuita nguva uye kugadzira zvimwe zvinodikanwa zvekugadzirisa) kukosha kwekuunganidza nekugadzirisa dhizaini (iyo inogona kuwedzera maawa kana kunyange mazuva kuhurongwa hwekugadzirisa) kuronga kwepamberi kunodiwa pakuona zvingangoitika bvunzo mamiriro, uye kushandiswa kweimwe chip I/O yekuwedzera dhizaini inogadzirwa izvi zviwanikwa. Imwe mhinduro yaive yekuwedzera kweakazvitsaurira debug logic mumucheka weFPGA pane mamwe maturusi. In-circuit debug uchishandisa Hardware probes yaive mhedzisiro.

In-Circuit FPGA Debug - Hardware Probes
Iko kushandiswa kwehardware probes kunorerutsa mu-circuit debug matekiniki eFPGAs. Iyi nzira inoshandiswa seLive Probe ficha paSmartFusion2®SoC FPGA uye IGLOO®2 FPGA zvishandiso, inowedzera yakatsaurirwa mitsara yekuferefeta kumucheka weFPGA kuti uone kubuda kwechero logic element register bit. Sezvinoratidzwa mumufananidzo weblock mumufananidzo 4, hardware probes inowanikwa mune mbiri nzira dzekuongorora A uye B.

Akasarudzwa maregisheni anobuda (probe points), senge yakadzikwa pazasi pechiverengero, anofambiswa pamusoro pematanho maviri ekuongorora uye kana akasarudzwa anogona kuiswa kune A kana B chiteshi. Aya chaiwo-nguva masaini masaini anogona ipapo kutumirwa kune yakatsaurwa Probe A uye Probe B mapini pamushini. Iyo Probe A uye Probe B masiginecha anogona zvakare kuendeswa mukati kune yakadzamirirwa logic analyzer.

Ziva kuti hunhu hwenguva dzepini dzekuferefeta ndedzenguva dzose uye dzine kutsauka kusingaite kubva pane imwe nzvimbo yekuferefeta kuenda kune imwe, zvichiita kuti zvive nyore kufananidza nguva yezviratidzo zvenguva chaiyo. Dhata inogona kutorwa kusvika ku100MHz ichiita kuti ive yakakodzera kune mazhinji ezvakatarwa magadzirirwo.
Zvichida zvinonyanya kukosha nzvimbo dzekuferefeta, sezvo dzisina kusarudzwa sechikamu chedhizaini yakaitwa (iyo inosarudzwa kuburikidza neyakazvitsaurira Hardware apo dhizaini iri kushanda paFPGA), inogona kukurumidza kuchinjwa nekungotumira iyo sarudzo yedata kune mudziyo. Hapana dhizaini recompile uye reprogramming inodiwa.
Kurerutsa mashandisirwo eiyo Live Probe kugona zvakatonyanya, iyo inosanganisirwa debug software chishandiso inokwanisa kuwana nzvimbo dzese dzechiratidzo chekuongorora kuburikidza neinogadzirwa otomatiki debug. file. Sezvinoratidzwa muMufananidzo 5, zita rechiratidzo rinogona kusarudzwa kubva pachiratidzo chechiratidzo uye rinoshandiswa kune chiteshi chinodiwa. Izvi zvinogona kuitwa kunyangwe iyo dhizaini iri kushanda kuitira kuti yekuongorora chiitiko mukati medhizaini haina musono uye inoshanda zvakanyanya.

Muzviitiko zvakawanda, iyo hardware probe kugona, seLive Probe, inogona kushandiswa pamwe chete neyakatsanangurwa yakadzamirwa logic analyzer uye ekunze bvunzo matekiniki.

Sezvinoratidzwa muFigure 6, iyo Live Probe kugona kusarudza masiginecha 'panhunzi' inoita kuti zvikwanise kukurumidza uye nyore kushandura masaini pasi pekutarisa pasina kuda kudzokorodza dhizaini. Yekunze logic analyzer kana scope inogona kuona zviri nyore masaini akaongororwa, sezvakaratidzwa muchikamu chekurudyi chemufananidzo pane yakatsaurirwa mapini ekuburitsa. Neimwe nzira (kana pamwe kunyangwe mukuwedzera kune) iyo yemukati logic analyzer (iyo ILA Ziva block, inoratidzwa mumufananidzo) inogona kushandiswa kuona iyo probe pini. Iwo masaini masaini anogona kubatwa neILA uye kucherechedzwa pane waveform hwindo. Nzvimbo dzeProbe dzinogona kuchinjwa pasina chikonzero chekudzokorodza dhizaini yakanangwa.
Ziva kuti mamwe masimba ekukonzeresa uye kutsvaga anogona kushandiswa kuwedzera basa rekuongorora, zvichiita kuti zvive nyore kuona kunyangwe zvakaoma dhizaini nyaya.

Kuwedzera kwehardware debug kugona kunowanikwawo paSmartFusion2 SoC FPGA uye IGLOO2 FPGA zvishandiso. Imwe yeaya magonero, anonzi Active Probe, anogona dynamically uye asynchronously kuverenga kana kunyora kune chero logic element register bit. Kukosha kwakanyorwa kunoenderera mberi kwewachi imwe chete kuitira kuti kushanda kwamazuva ose kuenderere mberi, zvichiita kuti ive chinhu chakakosha chekugadzirisa. Active Probe inonyanya kufarira kana kukurumidza kutarisa kwechiratidzo chemukati kuchidikanwa (zvichida kungotarisa kuti iri kushanda here kana kuti iri munzvimbo yaunoda, senge reset chiratidzo), kana kana paine chikonzero chekukurumidza kuyedza logic basa nekunyorera kune probe point.
(zvichida kutanga shanduko yemuchina wehurumende nekukasira kuseta kukosha kwekuisa kuparadzanisa dambudziko rekudzora kuyerera).

Imwe debug kugona yakapihwa naMicrosemi ndeye Memory Debug. Ichi chimiro chinobvumira mugadziri kuti averenge zvine simba uye asynchronously kana kunyora kune yakasarudzwa FPGA jira SRAM block. Sezvinoratidzwa pachiratidziro cheDebug Tool (Mufananidzo 7), kana Memory Blocks tab yasarudzwa mushandisi anogona kusarudza yaunoda ndangariro kuverenga, kuita snapshot yekutora ndangariro, gadzirisa ndangariro hunhu, uye wobva wanyora kukosha kudzosera kuchishandiso. Izvi zvinogona kunyanya kubatsira pakutarisa kana kuseta data buffers anoshandiswa mumachiteshi ekutaurirana ekombuta yakanangana nekukwenya-pad kana kunyangwe kodhi inoitwa neyakadzamidzirwa CPU. Kugadzirisa kukanganisa kwakaomarara kunoenderana nedata kunokurumidza uye nyore kana ndangariro dzinogona kucherechedzwa uye kudzorwa nekukurumidza.

Kana dhizaini yagadziriswa zvingave zvinodiwa kudzima iyo hardware debug kugona kuchengetedza ruzivo rwakadzama. Anorwisa anogona kushandisa zvivakwa zvakafanana izvi kuverenga-yakakosha ruzivo kana kushandura masisitimu ayo anogona kubvumira kupinda nyore kune zvikamu zvinonetsa zvehurongwa. Microsemi yakawedzera zvinhu kubvumira mugadziri kuchengetedza mudziyo mushure mekugadzirisa dambudziko kwapera. For example, kuwana kuLive Probe uye Active Probe inogona kuvharwa kuti ivhare zvachose basa racho senzira inobvira yekurwisa (inotobvisa mukana wekuita basa rekuferefeta kugadzira chero mapatani mune yekugovera ikozvino inogona kushandiswa kuyedza nekutarisa data rekuongorora zvisina kunanga). Neimwe nzira, kuwana kune zvikamu zvakasarudzwa zvegadziro zvinogona kuvharirwa kunze kudzivirira kupinda kune izvo zvikamu chete. Izvi zvinogona kuve zviri nyore kana chikamu chedhizaini chichifanira kuve chakachengeteka kuita kuti imwe dhizaini ichiri kuwanikwa mukuedzwa kwemunda kana kuongororwa kukanganisa.

In-Circuit Debug Comparison Chart
Ikozvino iyo yakadzama review yeaya matatu makuru e-in-circuit hardware debug tekinoroji akatsanangurwa pfupiso chati, sezvakaratidzwa muMufananidzo 8, yakagadzirwa iyo inotsanangura akasiyana advan.tages uye disadvanvantages yeimwe neimwe nzira. Kurangarira kuti mamwe matekiniki anogona kushandiswa akabatana (Live Probe uye Yemukati Logic Analyzer (ILA), seSynopsy Ziva, kune ex.ample), tinogona kuona kusimba kwakakosha uye kusasimba kwehunyanzvi hwega hwega. Iko kuunganidzwa kwe-in-circuit hardware debug kugona (Live Probe, Active Probe, uye Memory Debug-pamwe chete inonzi SmartDebug), haina kusimba kana ichienzaniswa nedzimwe hunyanzvi kana zvasvika kune huwandu hwehuwandu hwekuongorora huripo (denderedzwa dzvuku) uye haina kusimba kupfuura akanakisa (yellow denderedzwa) apo kumhanya kwekutora kunoonekwa (yekunze bvunzo michina inogona kukurumidza).
ILA-yakavakirwa matekiniki, seSynopsy Ziva, haina kusimba kana ichienzaniswa nemamwe matekiniki uye kana FPGA zviwanikwa zvinotariswa. Ekunze bvunzo-yakavakirwa matekiniki haina kusimba pane akati wandei ekufunga nemutengo, dhizaini yekugadzira nguva, uye probe kufamba pamusoro (nekuda kwekuda kudzokorodza dhizaini) zvakanyanya kunetsa. Zvichida mhinduro yakakwana ndeyekusanganiswa kweSmartDebug uye imwe yemamwe matekiniki, kuitira kuti huwandu hwematanho husina simba hweSmartDebug hugone kudzikiswa uye probe point movement disadvan.tages emamwe maitiro akaderedzwa zvakare.

Signal Classifications
Musiyano unobatsira unogona kuitwa pakati pemamwe marudzi akajairika ezviratidzo uye izvi zvinogona kubatsira pakuronga nzira yekugadzirisa. For example, masaini asingashanduke kunze kwekunge panguva yekutanga-system, senge system reset, block reset kana maregisheni ekutanga anogona kuiswa seakamira masaini. Aya marudzi ezviratidzo anonyanya kuwanikwa kuburikidza nenzvimbo inogona kuona zviri nyore pamwe nekudzora chiratidzo, pasina kuda kutenderera kwenguva refu. Active Probe inzvimbo yakanakisa yekubvisa masaini masaini. Saizvozvo, masaini anochinja kakawanda asi achiri static kwenguva yakawanda yenguva, anogona kuverengerwa sepseudo-static uye zvakare anonyatso gadziriswa uchishandisa Active Probe. Zviratidzo zvinoshanduka kakawanda, senge wachi, zvinogona kuverengerwa seane simba uye hazviwanikwe nyore nyore kuburikidza neActive Probe. Live Probe isarudzo iri nani yekutarisa aya masaini.

Yakareruka Debug Shandisa Nyaya

Zvino zvatava nekunzwisisa kurinani kweakasiyana-siyana e-in-circuit debug sarudzo, ngatitarisei iri nyore dhizaini ex.ample kuona kuti matekiniki aya anoita sei. Mufananidzo 9, inoratidza yakapusa FPGA dhizaini mune SmartFusion2 SoC FPGA mudziyo. Iyo Microcontroller Subsystem (MSS) inogadzikiswa neCoreSF2Reset Soft IP block. Izvo zvinopinda mubhuroko rino iSimba Pakumisa patsva, Mushandisi Wejira Reset, uye Reset Yekunze. Izvo zvinobuda ndezvekugadzirisa zvakare kuMushandisi Fabric, iyo MSS reset, uye M3 reset. Zviratidzo zvekukanganisa ndezvekuti hapana chiitiko paI / Os kunyangwe mudziyo uchibuda muPOR state zvinobudirira. Nzira nhatu dzakasiyana dzekugadzirisa kukanganisa uku dzinoratidzwa mumufananidzo zvakare: Bhokisi rebhuruu (rakanyorwa kuti ETE) ndero nzira yeExternal Test Equipment; bhokisi rakasvibira (rakanyorwa ILA) ndereInternal Logic Analyzer nzira; uye bhokisi reorenji (rakanyorwa AP) ndere Active Probe nzira. Isu tichafungidzira izvo zvinogona zvikonzero zvekukanganisa zvinonzi zvisizvo zvisizvo zvigadziriso kuCoreSF2Reset Soft IP block.

Ngatitarisei maitiro ekugadzirisa kune matatu eakatsanangurwa kare mu-circuit nzira.

External Test Equipment
Uchishandisa nzira iyi, zvinofungidzirwa kuti michina yekuyedza iripo uye isiri kushandiswa nepurojekiti yepamusoro. Pamusoro pezvo, zvakakosha kuve wakaronga kumberi kuitira kuti mamwe maFPGA I/Os avepo uye agone kubatana zviri nyore kumidziyo yekuyedza. Kuva nemusoro paPCB kune example, zvingabatsira zvikuru uye kuderedza nguva inopedzwa kuedza kuziva nekubatanidza kune 'angangofungira' kana kupfupika kwemapini panguva yekuongorora. Dhizaini ichada kudzokororwa kuti isarudze masaini atinoda kuongorora. Tinovimba, hatisi 'kudzura hanyanisi' uye tinoda kusarudza mamwe masaini kuti tiwedzere kuferefeta, sezvo kazhinji ongororo yedu yekutanga inongounza mimwe mibvunzo. Chero zvazvingaitika, iyo recompile uye reprogramming process inogona kutora yakakosha nguva, uye kana ikaguma nekutyorwa kwenguva inodiwa redesign (isu tese tinoziva kushungurudza kuedza kugadzirisa nyaya dzekuvhara nguva kunogona kuve, kunyanya, paunenge uchiita shanduko yekugadzira kuti uwane dhizaini bug-iyo yese maitiro anogona kutora kubva pamaminetsi kusvika maawa)! Zvakakoshawo kuyeuka kuti kana dhizaini isina mushandisi wemahara I/Os, iyi nzira haigone kuitwa. Uyezve, iyi nzira inopindirana nedhizaini-uye nguva ine hukama netsikidzi dzinogona kupera kana kuoneka zvakare pakati pekudzokorora.

Yemukati Logic Analyzer
Uchishandisa iyi nzira iyo ILA inofanirwa kuiswa mudhizaini uchishandisa machira zviwanikwa, uyezve inoda kudzokororwa. Ziva kuti kana iyo ILA yakatomisikidzwa, masaini atinoda kuongorora anogona kunge asina kugadzirwa, izvo zvinodawo kudzokororwa. Iyi nzira ine njodzi yekuchinja dhizaini yekutanga uye kutyora zvimisikidzo zvenguva. Kana nguva yakasangana, dhizaini inoda kurongwazve uye kutangwazve. Iyi nzira yose inogona kutora maminetsi akati wandei kana maawa kana nguva dzekudzokorora dzakareba uye kupfuudza kwakawanda kuchidiwa.Iyi nzira inopindirana nemaitiro uye inogona kukonzera matambudziko akafanana kune anotsanangurwa pakushandisa nzira iri pamusoro.

Kushanda kuongorora
Uchishandisa nzira iyi, Active Probe inogona kunongedzerwa kune kwakabva masaini akasiyana-siyana ekugadzirisa zvakare, ayo ese anotorwa neregisheni zvinobuda (sezvinowanzoitika mune chero yakanaka yedhijitari dhizaini maitiro). Masaini anosarudzwa imwe panguva, kubva kune Active Probe menyu inoratidzwa muFigure 10 pazasi. Izvo zvakasarudzwa zvikwangwani zvinogona kuverengwa uye zvinoratidzwa paActive Probe data hwindo. Chero zvisizvo-zvisizvo zvinozivikanwa zviri nyore. Muedzo uyu unogona kuitwa nekukasira pasina chikonzero chekudzokorodza uye kurongazve mudziyo uye haina kurongeka kana kupindirana. Zvose zvinotora masekonzi mashoma. Iyi nzira inogona zvakare kugadzira controllability (kuchinja maitiro asynchronously) izvo dzimwe nzira mbiri dzisingabvumidzwe. Mune iyi example, chiratidzo chekumisikidza chakacheneswa nerejista chinogona kuferefetwa zviri nyore uye kuwonekwa kuti chakaitwa chiripo.

Kutenderedza kwechinguvana kwechiratidzo chekugadzirisa zvakare kunogona kuwanikwa neasynchronously manipulate rejista ichigadzira mamwe masaini.

More Complex Debug Use Case
Iyo yakagadzirwa pamusoro apa yaive yakapusa uye inobatsira senge sumo yekushandisa yakatsanangurwa maitiro ekugadzira, asi yakaoma exampinogona kunge yakanyanya kuenzanisira. Nguva zhinji chiratidzo chekufarira hachisi chiratidzo chakamira sezvazvaive mune yedu example asi ane simba. Chiratidzo chakajairwa chine simba iwachi yepakati, pamwe inoshandiswa kugadzirisa nguva yekubata ruoko kune serial interface. Mufananidzo 11 unoratidza dhizaini yakadai nemushandisi Soft IP core, mune iyi kesi, tsika serial interface yakabatana neiyo system APB bhazi. Zviratidzo zvekukanganisa ndezvekuti hapana chiitiko pane vashandisi tsika serial interface, uye kuti kana tenzi webhazi re APB aburitsa kutengeserana kuti uwane iyo serial interface inoenda mune yakasarudzika mamiriro inoratidza kubatwa maoko zvisirizvo. Mamiriro aya anoita seanobvisa chikonzero chakamira, sechiratidzo chisina kunaka chekugadzirisa, sezvo muchina wekutengeserana unoratidzika kunge usingashande pamwero unotarisirwa uye nekudaro unokonzeresa kusarudzika. Icho chikonzero chinofungidzirwa kuve wachi frequency jenareta mukati memushandisi IP musimboti.

Kana isiri kushanda panguva chaiyo zvikanganiso zvakatsanangurwa zvingaitika.

Mune ino mamiriro ingangove iri nani zano rekutsiva iyo Active Probe maitiro neLive Probe. Izvi zvinoratidzwa mumufananidzo uri pamusoro nebhokisi reorange reLP bhokisi, uchishandisa JTAG chiratidzo chesarudzo yeprobe source.

External Test Equipment
Panyaya iyi, nzira yacho yakafanana neyakatsanangurwa kare yakapfava example. Chiratidzo chewachi yevashandisi chinoburitswa kunzvimbo yekuyedza (nechishuviro pamusoro) uye inopedza nguva kudzokorora inodiwa. Zvinogonawo kubatsira kuburitsa chiratidzo chechiratidzo, pamwe system clock iyo inoshandiswa kuvhara vashandisi IP sechiratidzo chekuenzanisa. Isu tichazoiswa zvakare pasi pekudikanwa kwekuunganidza uye kurongazve kuitira kuti maitiro ese atore nguva yakakura.

Yemukati Logic Analyzer
Mhosva iyi yakafanana neyakapfava example. Iyo ILA inofanirwa kuiswa, kana inodiwa chiratidzo inotsanangurwa, uye recompile uye reprogram kutenderera kunoitwa. Zvese zvakambotsanangurwa nyaya zvichiri kukonzera yakakosha debug kutenderera nguva. Pane kumwe kuoma kunzwisisa, zvisinei. Wachi inotyaira iyo ILA inoda kuenderana, uye zvine hunyanzvi nekukurumidza zvine chekuita newachi kuti ionekwe kubva kumushandisi Soft IP musimboti. Kana awa wachi ari asynchronous, kana asina hukama chaihwo hwenguva, kutorwa kwedata kuchave kusingafungidzirwe uye kungave kukonzeresa nyonganiso yemaitiro ekugadzirisa.
Ziva kuti kana mushandisi Soft IP wachi isina kugadzirwa pa-chip (pamwe inodzoserwa kubva kune serial interface) mugadziri angangoda kuwedzera wachi module kuti igadzire inokurumidza ILA wachi uchishandisa zvimwe zviwanikwa uye pamwe kugadzira kutyora nguva.

Live Probe
Uchishandisa nzira iyi, Live Probe inogona kukurumidza kunongedzerwa kune kwakabva mushandisi wachi uye chero imwe wachi kubva kurejista kudzinga chikonzero chekukanganisa. Iyo Live Probe inoratidza yakasarudzwa siginecha inobuda munguva chaiyo uye chero hukama hwenguva pakati pemasaini saka zviri nyore kuziva. Zvose zvinotora masekonzi mashoma.

Zvimwe Debug Zvimiro zveSerial Interfaces
Izvo zvakakoshawo kuratidza kuti kune akawanda ekuwedzera debug kugona muSmartFusion2 SoC FPGA uye IGLOO2 FPGA zvishandiso zvinogona kushandiswa pane serial interfaces, senge iri mune yapfuura ex.ample dhizaini apo zvikanganiso zvakatonyanya kuoma. SEDES Debug, semuenzanisoample, inopa chaiyo debug kugona kune yakatsaurirwa yakakwirira-kumhanya serial interfaces. Zvimwe zveSERDES Debug features zvinosanganisira PMA test support (sePRBS pattern generation uye loopback test) tsigiro yezvakati wandei SERDES test configurations neregister-level reconfiguration kudzivirira kushandiswa kwekuzara kwedhizaini kuyerera kuita shanduko yezvigadziriso, uye zvinyorwa zvinyorwa zvinoratidza configured protocols, SERDES configuration register, uye Lane configuration register. Aya maficha anoita kuti SERDES debug kuve nyore uye inogona kushandiswa pamwe chete neLive Probe uye Active Probe kuti uenderere mberi nekumhanyisa debugging yemaseketi akaomarara.
Iyo yakambotsanangurwa Memory Debug chishandiso inogona zvakare kushandiswa pamwe chete neSERDES Debug kukurumidza kuyedza. Sezvo memory buffers inogona kukurumidza uye nyore kuongororwa uye kuchinjwa neMemory Debug, zvinokwanisika kukurumidza kugadzira 'test mapaketi' uye kuona loopback kana yepakati-system yekutaurirana mhinduro. Mugadziri anogona kukwidziridza hunyanzvi uhu nekudaro kuderedza kudiwa kwehunyanzvi 'test harnesses' dzinoshandisa imwe FPGA jira uye zvinogona kukanganisa chip nguva.

Mhedziso
Iri bepa rakatsanangura zvakadzama nzira dzakasiyana-siyana dzekuita in-circuit debug yeFPGAs uye SoC FPGAs-kushandiswa kweIntegrated Logic Analyzer, kushandiswa kwekunze bvunzo michina, uye kushandiswa kweakazvitsaurira probe maseketi akabatanidzwa mumucheka weFPGA. Kuwedzerwa kweakasarudzika uye akazvitsaurira maseketi ekuferefeta, seActive Probe uye Live Probe inopihwa neMicrosemi paSmartFusion2 SoC FPGA uye IGLOO2 FPGA zvishandiso, yakaratidzwa kumhanya zvakanyanya uye kurerutsa maitiro ekugadzirisa. Kugona kukurumidza kugadzirisa kusarudzwa kwezviratidzo zvemukati (pasina chikonzero chekuita nguva yakawanda yekudzokorora uye kutendererazve chirongwa), uye kugona kuongorora masaini emukati (pasina kukosha kwekushandisa FPGA jira uye inogona kuunza kutyora nguva) yakaratidzwa seyakanyanya kufambira mberi.tages paunenge uchigadzirisa FPGA magadzirirwo. Pamusoro pezvo, kushandiswa kwemaitiro akawanda, ayo anogona kushanda pamwechete kuti ape humbowo hwakadzama hwekugadzirisa kwakatsanangurwa. Pakupedzisira, vaviri exampLe debug use kesi dzakapihwa kuratidza kutengeserana pakati penzira dzakatsanangurwa.

Kuti Udzidze Zvakawanda

1. IGLOO2 FPGAs
2. SmartFusion2 SoC FPGAs

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FAQ

• Q: Ndeipi yakanyanya kubatwa data frequency yemudziyo?
  A: Chishandiso chinotsigira data kubatwa kusvika ku100MHz, yakakodzera kune akawanda anotangwa magadzirirwo.
• Mubvunzo: Ini ndinofanira kudzokorodza dhizaini kana ndichishandisa probe maseketi ekugadzirisa?
  A: Kwete, nzvimbo dzekuferefeta dzinogona kuchinjika nekukurumidza pasina kuda kudzoreredza dhizaini kana kurongazve.

Zvinyorwa / Zvishandiso

Microsemi In-Circuit FPGA Debug [pdf] Mirayiridzo Mu-Circuit FPGA Debug, FPGA Debug, Debug

References

• User Manual