JS11 internally pulled low? Launch switch input

chense · Post by **chense** » Tue Sep 04, 2007 2:15 am

Hi,

Trying to get the launch switch to work with beta8 on v3 board, but nothing makes sense - built the circuit with two protective diodes (one from JS11 to +5V on the proto, one from JS11 to the switch, switch tied to ground). Diodes checked OK.

The problem is that nothing pulls JS11 high - with the diode to +5V, the voltage there is .17V (between JS11 and the ground). With a pull-up of 2k2 the voltage is 0.22V, wtf?
[the JS11 was selected in MT as the launch input during measuring, TPS was over the launch threshold]
Same situation when tried with JS7 and JS10 (tried with just the diode, not the pull-up) - nothing pulls the port up.

What am I missing?

--
Thanks,
Tom

Post by **muythaibxr** » Tue Sep 04, 2007 6:48 am

You might not be missing anything, there could be a bug.

In any case, can you post your msq?

Thanks.

Ken

chense · Post by **chense** » Tue Sep 04, 2007 6:59 am

muythaibxr wrote:You might not be missing anything, there could be a bug.

In any case, can you post your msq?

No problem, here is it.

What about this piece of code (ms2_extra_init.c, function main_init(void), line 374) :

Code: Select all

           if (pPTApin0 == &dummyReg) {
             conf_err = 7;
           } else {
             pPTApin0 = &dummyReg;
             //need to configure as input and setup pullup
           }

Is this a 'TODO' comment or not?

--
Bye,
Tom

Post by **muythaibxr** » Tue Sep 04, 2007 7:04 am

Certainly possible. Looks like we didn't get around to reconfiguring that pin, or we do it somewhere else in the code. It looks like there are a couple of pins that were not finished.

Ken

GintsK · Post by **GintsK** » Tue Sep 04, 2007 10:42 am

For me too launch do not work on js11. As I understand I have no hope to get it working until Saturday?

Post by **muythaibxr** » Tue Sep 04, 2007 10:50 am

that one shouldn't be too hard to fix. I'll be doing another release tonight or tomorrow, so I'll try to get that in.

Ken

GintsK · Post by **GintsK** » Tue Sep 04, 2007 12:29 pm

Thank You! Will await.

Eville140 · Post by **Eville140** » Wed Sep 05, 2007 7:52 am

Did you try any of the other input in the drop down box in megatune while hooked to js11?

I ended up changing my setup to this
http://www.msextra.com/viewtopic.php?p= ... ht=#165235

And it has worked with both 7 and 8

GintsK · Post by **GintsK** » Wed Sep 05, 2007 11:11 am

Just try. JS11, JS8, JS7 do not work for me. It is on 20010812 version.

Is some indicator for launch control in Megatune? I see three empty cells between other indicators.

Gints.

Paul260z · Post by **Paul260z** » Tue Oct 02, 2007 11:16 am

launch is working in beta10, i had ran into the same problems as all of you didnt know why. Happy to know that it is now working, just tried it out.