I-ST VL53L5CX Isikhathi Sendiza 8 x 8 Ibhukwana Lomsebenzisi Lenzwa Yezinzwa
Umhlahlandlela wokuhlanganisa isofthiwe ukuze usebenzise umshayeli okhanyayo we-VL53L5CX
Isikhathi Sendiza 8 x 8 inzwa ehlukahlukene yezone enenkambu ebanzi view
Isingeniso
Injongo yale manuwali yomsebenzisi ukuchaza indlela yokusebenzisa isendlalelo senkundla esidingekayo ukuze usebenzise i-VL53L5CX ultra lite driver (ULD).
Umfanekiso 1. I-VL53L5CX module module
Izithenjwa:
- Idatha ye-VL53L5CX (DS13754)
- Incwadi yomsebenzisi ye-VL53L5CX ULD (UM2884
1 Incazelo esebenzayo
1.1 Uhlelo luphelileview
Uhlelo lwe-VL53L5CX lwakhiwe imojula yehadiwe kanye nesoftware ye-ULD (VL53L5CX ULD) esebenza kumsingathi (bona umfanekiso ngezansi). Imojula yehadiwe iqukethe inzwa ye-Time-of Flight (ToF). I-ST iletha umshayeli wesofthiwe okubhekiselwa kuye kulo mbhalo ngokuthi “umshayeli”. Lo mbhalo uchaza imisebenzi yomshayeli efinyeleleka kumsingathi. Le misebenzi ilawula inzwa futhi ithole idatha ehlukahlukene.
Umfanekiso 2. Uhlelo lwe-VL53L5CX luphelileview
Isistimu yezinzwa ze-ToF
1.1Isakhiwo somshayeli nokuqukethwe
Iphakethe le-VL53L5CX ULD lakhiwe ngamafolda amane. Umshayeli ukufolda / VL53L5CX_ULD_API.
Ukuze usebenzise kahle umshayeli, umsebenzisi udinga ukugcwalisa kokubili files ezitholakala kufolda ethi “Platform”.
Ziqukethe imisebenzi ye-I2C, kanye nezici ezixubile ezidingwa umshayeli. I-architecture yomshayeli ikhonjiswe emfanekisweni olandelayo.
Umfanekiso 3. VL53L5CX umshayeli izakhiwo
2 Izidingo zenkumbulo
1.1 Inkumbulo yomshayeli
Njengoba i-VL53L5CX iyinzwa esekelwe ku-RAM, i-firmware idinga ukulayishwa ngaphambi kokuqala iseshini ehlukahlukene. I-firmware ithunyelwa ngokuzenzakalelayo ngumshayeli lapho umsebenzi wokuqalisa ubizwa.
I-firmware isebenzisa ingxenye enkulu yomshayeli (cishe ama-kbytes angama-86). Ithebula elilandelayo lichaza usayizi ojwayelekile odingwa umsingathi
Ithebula 1. Ukusetshenziswa kwenkumbulo okujwayelekile
| File | Usayizi (Kbytes ku-Flash) |
| I-API | 92.6 |
| I-Plugin Xtalk | 2.4 |
| Umkhawulo wokuthola i-plugin | 0.4 |
| I-plugin motion detector | 0.2 |
| TOTAL | 95.6 |
Qaphela: Imemori ephelele ingase yehluke kuye ngenani lezinto eziqondiwe zoni ngayinye kanye nokuphumayo okunikwe amandla. Okuhlongozwayo amanani ahambisana nezilungiselelo zomshayeli ezizenzakalelayo. Bheka imanuwali yomsebenzisi UM2884 ukuze uthole ulwazi olwengeziwe.
Qaphela: Izinga lokulungiselela (ukusetshenziswa kwenkumbulo okujwayelekile) ku-GCC ngu-0 s.
3 Ukuqaliswa kweplathifomu
Izenzo ezichazwe kulesi sihloko zidinga ukwenziwa umsebenzisi ukuze asebenzise umshayeli. Imisebenzi engenalutho itholakala ku-"platform.c" file
1.1I2C funda/bhala
Okwenziwayo phakathi kwenzwa ye-VL53L5CX nomsingathi kuphathwa yi-I2C. I-pinout yemojuli ne-schematics kunikezwe kudatha yedatha ye-VL53L5CX (DS13754).
Umsebenzisi udinga ukusebenzisa imisebenzi ye-I2C ukuze afunde futhi abhale idatha. Ubuncane kanye nobuningi bemisebenzi ye-I2C ibalwe kuthebula elilandelayo.
Ithebula 2. Usayizi wokwenziwe we-I2C
| Ukusetha | Usayizi (amabhayithi) |
| I-Min I2C Ifundiwe | 1 |
| I-Max I2C Ifundiwe | 3100 |
| Min I2C Bhala | 1 |
| I-Max I2C Bhala | 32800 |
I-bandwidth ye-I2C
I-VL53L5CX ithumela noma yamukele idatha nge-I2C uma kuhlangatshezwana neyodwa yale mibandela:
- Lapho inzwa iqaliswa. I-Firmware ilayishiwe futhi ukulandelana okujwayelekile kuyethulwa.
- Uma umsingathi ethola noma esetha imodi yamandla.
- Uma inzwa imisiwe, iqalisiwe noma iyamiswa
- Lapho kufundwa idatha ehlukahlukene.
- Ngemodi yokuvota, uma umsingathi ehlola ukuthi idatha entsha isilungile yini. Ngokuya ngesivinini sewashi le-I2C, umjikelezo wokuqalisa ungathatha isikhathi njengoba cishe ama-kbytes angama-86 kudingeka
kulayishiwe. Okunye ukusetshenziswa okuphezulu kwe-I2C kungase kwenezele ekulinganiseni kozimele okuphezulu, kusetshenziswa ukulungiselelwa okuthile (konke okukhiphayo kunikwe amandla kanye nenani eliphakeme lezinto eziqondiwe ngendawo ngayinye). Ithebula elilandelayo linikeza umkhawulokudonsa wokucushwa okuningana.
Ithebula 3. I-IC2 yomkhawulokudonsa ngesikhathi sokuhlelwa kokucushwa okuningana
| Ukucushwa komshayeli | Usayizi wephakethe (amabhayithi) | Umkhawulokudonsa (amabhayithi/isekhondi) |
| 1 Hz – Ukulungiswa 4×4 – 1 okuqondiwe kuzoni ngayinye
- thola kuphela ibanga + isimo sethagethi + i-nb target itholiwe |
124 |
124 |
| 1 Hz – Ukulungiswa 8×8 – 1 okuqondiwe kuzoni ngayinye
- thola kuphela ibanga + isimo sethagethi + i-nb target itholiwe |
316 |
316 |
| 60 Hz – Ukulungiswa 4×4 – 4 okuqondiwe kuzoni ngayinye – konke okukhiphayo kunikwe amandla | 1008 | 63000 |
| 15 Hz – Ukulungiswa 8×8 – 4 okuqondiwe kuzoni ngayinye – konke okukhiphayo kunikwe amandla | 3360 | 50909 |
Umlando wokubuyekeza
Ithebula 4. Umlando wokubuyekeza idokhumenti
| Usuku | Inguqulo | Izinguquko |
| 03-Juni-2021 | 1 | Ukukhishwa kokuqala |
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Funda okwengeziwe ngale Manuwali & Landa i-PDF:
Amadokhumenti / Izinsiza
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I-ST VL53L5CX Isikhathi Sendiza 8 x 8 Multizone Ranging Sensor [pdf] Imaniwali yosebenzisayo I-VL53L5CX, Isikhathi Sendiza 8 x 8 Multizone Ranging Sensor |
