3BABY
Member level 5
- Joined
- Jan 14, 2011
- Messages
- 91
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,286
- Location
- New Zealand
- Activity points
- 2,252
Hi Guys,
im having some major issues trying to connect a 18F8722 to a 18F4550 - the 4550 is on an EasyPIC6 and the 8722 is on a BIGPIC6, i have PortG of the 8722 connected to PortB of the 4550 via 8 separate wires, all ports are pulled down via 10k resistors and i have used a common ground for both boards.. the problem is im not getting the data across on the 4550.. when the wires are connected i have like 1.8 volts on the line at logic 1.. when i disconnect the 4550 end of the line i have around 4.96v at logic 1... whats going on? what am i doing wrong?
any help would be much appreciated.. ive been trying to fix this issue for hours! ive tried a different board, different ports, difference uC's and still have the same issue.. it had to be a earth problem no?
HELP :-(
im having some major issues trying to connect a 18F8722 to a 18F4550 - the 4550 is on an EasyPIC6 and the 8722 is on a BIGPIC6, i have PortG of the 8722 connected to PortB of the 4550 via 8 separate wires, all ports are pulled down via 10k resistors and i have used a common ground for both boards.. the problem is im not getting the data across on the 4550.. when the wires are connected i have like 1.8 volts on the line at logic 1.. when i disconnect the 4550 end of the line i have around 4.96v at logic 1... whats going on? what am i doing wrong?
any help would be much appreciated.. ive been trying to fix this issue for hours! ive tried a different board, different ports, difference uC's and still have the same issue.. it had to be a earth problem no?
HELP :-(