Need help on the 360 serial connector

[Cpasjuste]

I would like to start coding on the 360 but i'm not a pro in electronic so i would like to be sure of what i'm doing before burn my 360.

With this schem, should i only connect the pin 1,2 and 13 of the 360 j2b1 pin header to the max 3232 dip ? I'm also not sure of the pin 13 if i shouldn't use the pin 8 instead for 3.3v.
Last question : can i take the ground from any mettalic surface in the 360, and what would happend if we dont connect to gnd :x



Thanks in advance

[Cpasjuste]

After some research (after saw a drMatrix post), i think i know where to connect :

- Rx (pin 1)
- Tx (pin 2)
- Gnd (pin 12)

Code:

| RX x x x x x x |
| TX x x x x G   |

But for the 3.3v, my question remain, should i use the pin 8 or 13 ?

[is0-mick]

I dont think it makes much difference, I took 5v from near where the power socket comes in (the xedk power plug).

[Cpasjuste]

Ok i see, you took the power from the J9A2 connector.
Many thanks for your fast reply, i'll buy some material this afternoon then see how its going.

[Pandor]

I dont think it makes much difference, I took 5v from near where the power socket comes in (the xedk power plug).

But he's using a max3232 and no zener diodes to limit the voltage, so he should connect it to pin 8, wich is 3.3v all the time.
Lets say you use the serial connection, but forgot to power-on the 360, you would be driving the chip with 5v which translates to 5v on the TTL/CMOS i/o too.

[Cpasjuste]

Ok it's what i was thinking about the 360 sending +5v when powered off, but i wasnt sure.
Many thanks for your help guys

[Surrido]

is somebody working on getting this done through the ethernet port?

[Arakon]

uh.. how would it work through ethernet? there's nothing on the 360 side that is awaiting input like that over network, much less anything that can access ram.