Guru
Joined: 22/02/2006
Location: AustraliaPosts: 2137
| Posted: 06:01am 02 Jun 2026 |
Ok to explain this in more detail a few years ago I made up a piggyback Zero board for a OV7670 camera, today I finally brought it out to see if I could get it working.
So to get started we just tried to get the zero slave to open but kept getting conflicts now it clearly states in the manual for I2C2 GP14 and GP15 are listed as suitable pins.
this is the slave code
'
OPTION EXPLICIT
OPTION DEFAULT NONE
CAMERA OPEN GP8, GP10, GP11, GP12, GP13, GP0
' capture frame
I2C OPEN 100, 1000 ' master mode, no SETPIN needed
' send chunks to display Zero
I2C CLOSE
OPTION EXPLICIT
OPTION DEFAULT NONE
CAMERA OPEN GP8, GP10, GP11, GP12, GP13, GP0
' capture frame
I2C OPEN 100, 1000 ' master mode, no SETPIN needed
' send chunks to display Zero
I2C CLOSE
Now before we get to I2C
[5] Camera OPEN GP8, GP10, GP11, GP12, GP13, GP0
Error : Invalid display type
Error : Invalid display type
claude did suggest to open on the slave zero I2C as a master so my camera open command is the same as the command in the manual
CAMERA OPEN XLKpin,
PLKpin, HSpin, VSCpin,
RETpin, D0pin
PLKpin, HSpin, VSCpin,
RETpin, D0pin
the XLK pin GP8, PLK pin GP10, HS pin GP11, VS pin GP13, D0 pin GP0
Regards Bryan