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Bridgetek BT81X (815/6) Advanced EVE Graphics Engine Daim Qhia Kev Nco

May 09, 2019

Txhua lub cim xeeb thiab cov npe hauv BT815 / 6 tub ntxhais yog cim xeeb nyob rau hauv 22-qhov chaw nyob nrog 2-ntsis
SPI hais kom ua prefix. Prefix 0'b00 rau kev nyeem thiab 0'b10 rau sau ntawv mus rau qhov chaw nyob, 0'b01 yog tseg rau
Qho Chaw Tshaj Tawm thiab 0'b11 undefined. Cov nram qab no yog qhov chaw cim xeeb.
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Lus Cim 1: Cov chaw nyob dhau lub rooj ntawv no tshwj tseg thiab yuav tsum tsis txhob nyeem lossis sau ntawv tshwj tsis yog
teev.


5.1 Sau npe

Cov lus 5-2 qhia tag nrho cov npe ntawm BT815 / 6 cov npe. Xa mus rau BT81X_Series_Programming_Guide ,
Tshooj 3 kom paub meej txog kev sau npe.

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Cov lus 5-2 Kev Ntsuam Xyuas BT815 / 6 Cov Neeg Sau Ntawv

Lus cim: Txhua qhov chaw nyob yog 4-byte kws dlhos. Tus nqi ntawm "Kem" yog hais txog tus naj npawb ntawm
siv cov khoom me me los ntawm ntsis 0 tshwj tsis yog qhia lwm tus; lwm cov khoom yog tseg.


5.2 Chip ID

Tus BT815 / 6 Chip ID tuaj yeem nyeem ntawm qhov chaw cim xeeb 0C0000h - 0C0003h. Qhov pib qhov tseem ceeb ntawm cov
bytes yog:
- 0C0000h: 08h
- 0C0001h: 15h (BT815), 16h (BT816)
- 0C0002h: 01h
- 0C0003h: 00 h
Nco ntsoov tias qhov chaw Chip ID tuaj yeem sau tshaj tawm los ntawm software.