Techno Innov Pi RTC le NVMEM Extention System
Litlhaloso tsa Sehlahisoa
- Lebitso la Sehlahiswa: Boto ea PiRTC_SRM v0.2
- RTC: Oache ea Nako ea 'Nete e nang le bekapo ea matla a Super-Capa
- RAM e sa fetoheng: 64 li-byte
- Sehokelo: Lipini tse 26, tse tsamaellanang le likhokahanyo tse tloaelehileng tsa katoloso ho li-SBC
- E etselitsoe: Nts'etsopele ea ARM e kenelletseng e sebelisa software ea mohloli o bulehileng
Litaelo tsa Tšebeliso ea Sehlahisoa
Hardware Overview:
PiRTC_SRM Board v0.2 ke boto ea ntlafatso ea lisebelisoa tsa elektroniki le prototyping e etselitsoeng Single Board Computers (SBC) joalo ka OrangePi kapa Raspberry Pi SBCs. E na le RTC e nang le bekapo ea matla a Super-Capa le li-byte tse 64 tsa RAM e sa fetoheng.
Tlhophiso ea Hardware:
Hokela boto ea PiRTC_SRM ho SBC u sebelisa sehokelo sa lipini tse 26, ho netefatsa hore ho tsamaisana hantle.
Sebopeho sa Software:
Hlophisa SBC ea hau ho lemoha le ho sebelisa likarolo tsa RTC le NVMEM tse fanoeng ke boto ea PiRTC_SRM.
Tikoloho ea Ntlafatso:
Haeba u lakatsa ho fetola moralo kapa mohloli files ea boto ea PiRTC_SRM, u ka sebelisa KiCad EDA (GPL) bakeng sa ho hlophisa le ho e etsa.
Selelekela
- U ntse u bala Buka ea Tsamaiso ea Tsamaiso bakeng sa Pi RTC.
- Pi RTC ke boto ea ntlafatso ea lisebelisoa tsa elektroniki le li-adapter tsa prototyping bakeng sa Single Board Computers (SBC) joalo ka OrangePi kapa Raspberry PI SBC's.
- Pi RTC e fana ka RTC e nang le bekapo ea matla a Super-Capa le li-byte tse 64 tsa RAM e sa fetoheng.
- Boto e sebelisa mofuta oa li-pins tse 26 tsa sehokelo se tloaelehileng se fumanehang ho SBC tse ngata tse nang le sebopeho se haufi le Raspberry Pi ea mantlha, eo hangata e tsamaellanang le pinout ea sehokelo sa lipini tse 40.
- Pi RTC e etselitsoe basebelisi ba nang le thahasello ho nts'etsopele ea ARM e kentsoeng ba sebelisa lisebelisoa tsa mahala, tsa mahala le tse bulehileng feela.
- Tlhahisoleseding e 'ngoe le e' ngoe e mabapi le moralo e teng 'me litokomane tsohle tsa likarolo li fumaneha mahala. U ka khoasolla mohloli files bakeng sa Pi RTC le ho li fetola ka ho sebelisa KiCad 1 EDA (GPL) ho latela lipehelo tsa laesense tse fumanoang karolong ea laesense.
- U ka iketsetsa le ho hlahisa Pi RTC ea hau kapa mofuta o fetotsoeng (empa u sa li rekise).
Lilaesense
Laesense ea litokomane
- Tokomane ea hona joale e tlas'a Creative Commons CC BY-SA-NC 4.0 2 License.
- E ngotsoe ka LATEX mme mofuta oa PDF o hlahisoa ho sebelisoa pdflatex.
Laesense ea lisebelisoa
- Thepa ea Pi RTC le meralo li tlas'a License ea Creative Commons CC BY-SA-NC 4.0 3.
- U ka hlahisa mofuta oa hau oa mantlha kapa o fetotsoeng oa Pi RTC, 'me u e sebelise kamoo u ratang kateng, empa u se ke ua e rekisa, le ntle le phaello.
Laesense ea software
Lisebelisoa tsohle tsa software examptse etselitsoeng Pi RTC li tlas'a Laesense ea GPLv3.
Lisebelisoa
Litekanyo
Setšoantšo sa 1 se fana ka litekanyo tse fapaneng le maemo a likarolo tse kholo tsa Pi RTC.
Lihokelo
P1 Sehokelo
Sehokelo sa P1 ke sehloho se tloaelehileng sa 2.54mm (0.1 inch), se nang le mela e 2 ea lipini tse 13. P1 sehokelo se fana ka phihlello ho hlooho e tloaelehileng ea katoloso ea PI.
| Pin # | Tlhaloso | Letšoao la RPi |
| 1 | +3.3V ho tloha Pi | +3.3V |
| 2 | + 5V ho tloha ho Pi (tefo ea RTC) | +5V |
| 3 | SDA : Lintlha tsa Serial bakeng sa bese ea I2C | I2C1 SDA |
| 4 | + 5V ho tloha ho Pi (tefo ea RTC) | +5V |
| 5 | SCL : Oache ea bese ea I2C | I2C1 SCL |
| 6 | GND: Fatše | GND |
| 7 | RTC GPIO | GPIO 4 |
| 8 | E sa sebelisoeng - Ha e hokahane | – |
| 9 | GND: Fatše | GND |
| 10 ho ea ho 13 | E sa sebelisoeng - Ha e hokahane | – |
| 14 | GND: Fatše | GND |
| 15 ho ea ho 19 | E sa sebelisoeng - Ha e hokahane | – |
| 20 | GND: Fatše | GND |
| 21 ho ea ho 24 | E sa sebelisoeng - Ha e hokahane | – |
| 25 | GND: Fatše | GND |
| 26 | E sa sebelisoeng - Ha e hokahane | – |
Tsa elektroniki
- Pi RTC e entsoe ho sebelisoa software ea KiCad 4 EDA bakeng sa ho theha meralo le liboto tsa potoloho tse hatisitsoeng.
- Sheba leqephe la 9 lihlomathisong bakeng sa meralo e felletseng. Mehloli ea meralo e teng bakeng sa ho khoasolla ho tsoa leqepheng la sehlahisoa sa tindie le lethathamong la Pi RTC la 5 ho techdata.techno-innov.fr.
Lebitso Tlhaloso U1 NXP PCF85363 RTC Clock. U2 TI LP2985 DC-DC se fetolelang fatše. SC1 Bussmann 1 Farad supercapacitor.
I2C
Pi RTC e sebelisa bese ea I2C e le 'ngoe feela ho tsoa ho sehokelo sa 26 Pi. Bese 1 e tšoara oache ea PCF85363 RTC atereseng ea 0x51.
Liaterese tsa I2C
Letlapa la 3 le bonts'a liaterese tsohle tse ka bang teng tsa I2C bakeng sa likarolo tse sebelisoang ho PiRTC.
| Karolo ea I2C | 7 bits aterese ea I2C | Aterese ea I2C + R / W bit |
| PCF85363 RTC Clock | 0x51 | 0xA2 / 0xA3 |
Oache ea RTC
- Pi RTC e kenyelletsa PCF85363 RTC e nang le backup ea matla a super-capacitor.
- Tšebeliso ea Super-capacitor bakeng sa backup ea matla e theola sebaka sa tikoloho mme e tlosa tlhoko ea ho khutlisa (le ho lahla) betri ka litšenyehelo tsa ho boloka nako e khuts'oane, e pakeng tsa khoeli le khoeli tse peli, empa e lokela ho lekana bakeng sa lits'ebetso tse ngata.
- Linux kernel e na le tšehetso bakeng sa PCF85363 RTC ho rtc-pcf85363 module (CONFIG_RTC_DRV_PCF85363). Ka mor'a ho kenya mochine oa rtc-pcf85363 kernel, o tlameha ho eketsa RTC lethathamong la lisebelisoa ho I2C bese 1: echo pcf85363 0x51 > /sys/bus/i2c/devices/i2c-1/new_device
- Sena ha se hlokahale haeba sefate sa sesebelisoa se se se ntse se e-na le boitsebiso bo lumellanang.
- U ka fihlella RTC ka taelo ea hwclock (ho tloha sephutheloana sa util-linux ho li-distributions tsa Debian tse thehiloeng ho GNU / Linux) e le e 'ngoe ea /dev/rtcN (fetola 'N' ka nomoro e nepahetseng ea RTC).
NVMEM
- PCF85363 RTC e kenyelletsa li-byte tse 64 tsa RAM e sa fetoheng (hafeela matla a supercapacitor a sebetsa).
- E le hore u khone ho fihlella memori ena u tlameha ho ba le tlhophiso e latelang ho Linux Kernel ea hau.
- CONFIG_RTC_NVMEM=y
- CONFIG_NVMEM=y
- CONFIG_NVMEM_SYSFS=y
- Sheba ho Wiki ea rona bakeng sa tlhaiso-leseling e batsi mabapi le mokhoa oa ho sebelisa NVMEM.
Software
- Re hlokometse hore tlhahisoleseling ea software e fetoha kapele haholo hore e ka kenyelletsoa litokomaneng tse joalo.
- U tla fumana lintlha tsohle tse nepahetseng ho wiki ea rona ea sechaba: http://wiki.techno-innov.fr/index.php/Products/PiRTC
Nalane ea ntlafatso ea boto
v0.1
- Phetolelo ena ea boto ha e so rekisetsoe sechaba.
- Mofuta oa pele oa prototype, o hlahisitsoeng ka kopo ea bareki.
v0.2
- Phetolelo ea 'nete e rekisitsoe ho tloha ha ho ngoloa tokomane ena.
- Tsamaisa RTC GPIO Pin ho P1 pin7 sebakeng sa P1 pin 8 (UART Tx).
Lihlomathiso
Maqheka
Moralo oa boto le sebopeho sa PCB li entsoe ho sebelisoa software ea KiCad 7 EDA. U ka khoasolla mehloli e hlahang leqepheng la 8 la PiRTC ho wiki.techno-innov.fr.
BOM
| Tlhaloso ea Karolo | Ref | Mojule | Nb | Morekisi | Ref | Farnell |
| xRpi sehokelo | ||||||
| 2 × 13 Socket e Atolositsoeng ea Mohatla | – | TH | 1 | – | SAMTEC | – |
| RTC | ||||||
| PCF85363 RTC I2C 64Bytes
SRAM |
U1 | TSSOP-
8 |
1 | NXP | PCF85363ATT/AJ | 2775939 |
| Xtal CMS ABS10 32,768KHz | Y1 | ABS10 | 1 | ABRACON | ABS10-32.768KHZ-7-T | 2101351 |
| Capacitor 15pF 0603 NPO 50V
5% |
C1, C2 | 0603 | 2 | MULTICO | MC0603N150J500CT | 1759055 |
| LDO 3,0V | U2 | SOT23-5 | 1 | Texas Ins-
truments |
LP2985AIM5-
3.0/NOPB |
1469133 |
| Tlhaloso: Diode 1N4148 | D1 | EA-123-SOD | 1 | LEFU
Inc |
1N4148W-7-F, | 1776392 |
| Super capacitor 1F, 2,7V | SC1 | TH-8mm | 1 | BUSSMANN | HV0810-2R7105-R | 2148482 |
| Resistor 33 Ohms - moeli o teng hona joale | R1 | 0603 | 1 | MULTICO | Setšoantšo sa MCWR06X33R0FTL | 2447344 |
Hlokomela: Likarolo tse sebelisoang ho Boto li ka fetoha bakeng sa litšupiso tse ts'oanang ntle le tsebiso pele
Nalane ea ntlafatso ea litokomane
| Phetolelo | Letsatsi | Mongoli | Boitsebiso |
| 0.1 | Pherekhong, 24, 2025 | Nathaël Pajani | Ntlafatso ea pele |
Boithorollo
Pi RTC e fanoa "joalokaha e le" ntle le tiisetso ea mofuta ofe kapa ofe, e hlahisoang kapa e ka hlalosoang, ho kenyeletsoa, empa e sa felle feela, litiisetso tse boletsoeng tsa thekiso le ho itekanela molemong o itseng. Kotsi eohle mabapi le boleng le ts'ebetso ea Pi RTC e ho uena. Ha Pi RTC e ka iponahatsa e sa sebetse, o nka litšenyehelo tsa litšebeletso tsohle tse hlokahalang, tokiso kapa tokiso.
Lipotso tse atisang ho botsoa (FAQ)
- A na nka rekisa mofuta oa ka oa boto ea PiRTC_SRM?
Ho latela lipehelo tsa laesense, o lumelletsoe ho theha le ho hlahisa mefuta e fetotsoeng ea boto ea PiRTC_SRM bakeng sa ts'ebeliso ea hau, empa eseng bakeng sa thekiso ea khoebo. - Na boto ea PiRTC_SRM e lumellana le li-SBC kaofela?
Boto ea PiRTC_SRM e etselitsoe ho sebelisana le Single Board Computers e nang le sebopeho se ts'oanang le ho penya ho Raspberry Pi.
Litokomane / Lisebelisoa
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Techno Innov Pi RTC le NVMEM Extention System [pdf] Bukana ea Mosebelisi Board v0.2, Pi RTC le NVMEM Extention System, Pi RTC le, NVMEM Extention System, Extention System, System |
