I-STMicroelectronics STNRG328S Izilawuli zoTshintsho lweDijithali

Intshayelelo

• Olu xwebhu luchaza inkqubo yokucwangcisa ngokutsha imemori ye-EEPROM yesixhobo se-STNRG328S esifakwe kwiibhodi ezineebhodi ze-STC/HSTC. Inkqubo ibandakanya ukukhuphela kokubini file stsw-stc kwifomati ye-hex usebenzisa i-adaptha yentambo ye-USB/TTL-RS232.
• Example ngezantsi ibonisa ibhodi ene-STC topology kunye ne-STNRG328S exhonyiwe. Uyilo lusekwe kumacandelo e-X7R
  (i-switch capacitors kunye ne-resonant inductors) yokuguqulwa kwesantya 4: 1 (ukusuka kwi-48 V ibhasi ye-input ukuya kwi-12 V Vout), ekwazi ukuhambisa amandla e-1 kW kwizicelo zeseva.

  

• Ikhowudi yokubini stsw-stc inokukhutshelwa kwikhonkco https://www.st.com/en/product/stnrg328s. I-stsw-stc ixhasa unxibelelwano lwe-PMBUS. Unokufumana uluhlu lomyalelo kunye nolwazi oluninzi malunga nesixhobo kwindawo enye.
  Kubalulekile: Qhagamshelana neofisi yentengiso yendawo xa ucwangcisa itshiphu okokuqala.

Izixhobo kunye nezixhobo

Izixhobo kunye nezixhobo ezifunekayo ukwenza inkqubo yokuphucula zichazwe ngezantsi.

1. Ikhompyuter yakho enezi mfuno zilandelayo:
   • Windows XP, Windows 7 iinkqubo zokusebenza
   • ubuncinane i-2 GB yememori ye-RAM
   • 1 USB port
2. Ukuhlohla file CDM v2.12.00 WHQL Certified.exe kumqhubi FTDI for USB 2.0 ukuba uthotho UART converter. I file inokukhutshelwa kwi-ST.com kwi-STEVAL-ILL077V1 isixhobo sovavanyo lwe-firmware page kwi-STSW-ILL077FW_SerialLoader subdirectory.
   • Qhagamshela intambo ye-USB/UART kwiPC nakwibhodi yomama. Ngexesha lokuqala intambo iqhagamshelwe kwiPC, i-FTDI USB serial converter umqhubi kufuneka afunyanwe kwaye afakwe ngokuzenzekelayo.
     Ukuba umqhubi akafakwanga, qalisa ukufakela file CDM v2.12.00 WHQL Certified.exe.
   • Nje ukuba umqhubi efakwe, unxibelelwano nge-USB port lufakwe kwi-PC yangaphakathi COM. Imephu inokuqinisekiswa kumphathi weSixhobo seWindows: [Iphaneli yoLawulo]>[Inkqubo]>[Umphathi weSixhobo]>[Iizibuko].

     
3. Gcina file I-Flash Loader Demonstrator.7z, efunekayo ukufaka i-ST serial flash loader kwi-PC.
   I file inokukhutshelwa kwi-ST.com kwi-STEVAL-ILL077V1 isixhobo sovavanyo lwe-firmware page kwi-STSW-ILL077FW_SerialLoader subdirectory.
   • Emva kokufaka isixhobo sesixhobo, sebenzisa i-executable file STFlashLoader.exe. Isikrini esiboniswe kumzobo ongezantsi siya kuvela.

     
4. I .hex yokubini file ihlanganiswe ne-IAR Embedded Workbench. Isixhobo esisebhodini kufuneka sele sidanyazwe nge-firmware enenkxaso yonxibelelwano ye-PMBUS. Kwi-firmware, sibhekisa kwi-STUniversalCode.
5. Intambo encinci ye-USB.
6. DC unikezelo lwamandla kunye ukunika amandla ibhodi.

Ukuseta izixhobo

Eli candelo lichaza umdibaniso phakathi kwentambo ye-UART kunye nezikhonkwane zesixhobo. I-pinout yesixhobo iboniswe ngezantsi:

1. Seta izikhonkwane njengoko kuchaziwe kwitheyibhile ilandelayo:
   Itheyibhile 1. STNRG328S useto lwephini
   

   Isalathiso sokutsiba	Cwangcisa indawo
   I-Pin 13 (VDDA)	+3.3V / +5V ebhodini inikezelwe
   I-PIN 29 VDD	+3.3V / +5V ebhodini inikezelwe
   iPin 1 (UART_RX)	Misela kwi-UART TX yentambo
   I-Pin 32 (UART_TX)	Misela kwi-UART RX yentambo
   iPin 30 (VSS)	GND
   Iphini 7 (UART2_RX)	Qhagamshela emhlabeni ukuze uvale i-bootloader kwi-UART yesibini

2. Qhagamshela isiphelo se-USB sentambo yeadaptha kwizibuko le-USB lePC; emva koko uqhagamshele isiphelo sothotho kunye nezihlanganisi zepin yesokethi.
   Qinisekisa uqhagamshelo olulandelayo:
   • RX_cable = TX_devive (Pin 32)
   • TX_cable = RX_device (Pin 1)
   • GND_cable = GND_isixhobo (iPin 30)
     Enye i-UART RX Pin 7 ye-STNRG328S kufuneka iqhagamshelwe emhlabeni.

     

Ikhuphela i-firmware

• Ukulungiswa kwakhona kwememori ye-EEPROM yesixhobo se-STNRG328S, siya kubhekisa kwibhodi ye-X7R-1kW eboniswe kuMfanekiso 1.
• I-stsw-stc firmware ithathwa ngokuba sele ifakiwe.
• Ibhodi isebenzisa iPin 1 kunye nePin 32 njenge UART. I-firmware iqwalasela ezi zikhonkwane ze-I2C ekwabelwana ngazo njenge-UART kuba ifuna ukwenza i-bootloader isebenze nge-UART. Olu phawu lunokwenziwa lusebenze ngokuphumeza umyalelo wokubhala we-PMBUS ukuseta ixabiso le-0xDE ukuya kwi-0x0001.
• Ukuthumela imiyalelo ye-PMBUS, umsebenzisi ufuna i-GUI kunye ne-interface ye-USB/UART (bona 1.).
• Emva kokusebenzisa lo myalelo, qhagamshela intambo ye-UART kwiPin 1 kunye nePin 32 njengoko kuchaziwe ngasentla kwaye ulandele la manyathelo angezantsi:

1. Qalisa i-STFlashLoader.exe, ifestile engezantsi iyaboniswa.

   

   • Faka useto oluboniswe kumzobo ongentla.
     Kubalulekile:
     Sukucofa iqhosha elithi [Okulandelayo] ngoko nangoko njengoko linokuvala ixesha lefestile. Ukusetwa ngokutsha kwebhayisikile yephini kuyafuneka phambi kokuba kuqhutyekwe.
   • Kwi [Igama leSibuko], khetha izibuko le-COM elidityaniswe ne-USB/Isiguquli seSeriyali. UMlawuli wesiXhobo seWindows kwiPC yomsebenzisi ubonisa imephu ye-COM port (jonga Izixhobo kunye nezixhobo).
2. Amandla ibhodi CIMA kwaye UVULA kwaye ngoko nangoko (ngaphantsi kwe-1 s) cofa iqhosha elithi [Okulandelayo] kumzobo ongentla. Isikrini esilandelayo siya kubonakala ukuba uqhagamshelo oluyimpumelelo phakathi kwePC kunye nebhodi lusekiwe.

   

3. Ukusuka kwibhokisi yencoko yababini kumfanekiso ongentla, khetha i-STNRG kuluhlu [Okujoliswe kuko]. Ifestile entsha iya kuvela kunye nemephu yememori yememori engaguquguqukiyo.

   

4. Cofa kwiqhosha elithi [Okulandelayo], kwaye umfanekiso ongezantsi uya kuvela.
   Ukwenza inkqubo ye-EEPROM:
   1. khetha [Khuphela kwisiXhobo]
   2. kwi [Khuphela kwi file], khangela kwi file ukukhuphela kwimemori ye-SNRG328S.
   3.  khetha i [Global Erase] ukhetho.

      

5. Cofa [Okulandelayo] ukuqalisa inkqubo yokukhuphela.
   Lindela inkqubo yokucwangcisa ukugqiba kwaye uqinisekise ukuba umyalezo oyimpumelelo oluhlaza uvela, njengoko kubonisiwe kulo mfanekiso ungezantsi.

   

6. Ungaqinisekisa ukuba ibhinary echanekileyo ikhutshelwe ngokujonga ukuba idata&code checksum ye firmware ihambelana nokukhululwa.
   Le nkqubo ichazwe kwi-STC Checksum Implemetation.docx ekhoyo kwi-ST.com.

Iimbekiselo

1. Inqaku lesicelo: AN4656: Inkqubo yokuqalisa i-STLUX™ kunye ne-STNRG™ abalawuli bedijithali

Imbali yohlaziyo

Uluhlu 2. Imbali yohlaziyo loxwebhu

Umhla	Inguqulelo	Iinguqu
02-Mar-2022	1	Ukukhutshwa kokuqala.

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