Take a good look at the Junebug schematic. Only the 18F2550 and the bits between it and the USB connector have anything to do with it connecting to MPLAB or PICkit2 software. The fact that your computer sees the Junebug (but does not know what it is) tends to indicate the hardware is good.When this sort of thing happens I switch to PICkit2 application rather then MPLAB. Try connecting several times. Try rebooting the PC.
Are you saying it was working and stopped
Does the bootloader led flash if you hold the BL button while plugging it in?
And as 3VO said try another PC.
Do you have all the 0.1uF caps installed? Along with the 220uF cap?
He did say he had it working.
Can an LVP programmed chip be used? As RB5 is tied high it would enter programming mode instead of running the code.
Mike.
I thought the same thing but Theo said he got a homebuilt Junebug clone working so I sent him a Junebug PCB.
YES!!it has, but 220uF? mine has a 100uF/25V?s Do you have all the 0.1uF caps installed? Along with the 220uF cap?
Bill, If I remember Theo92 had programmed his 18F2550 using ART2003 from Fox Delta Amateur Radio Projects and Kits (the LVP programmer), we had enogh discussion on this. I was asking how the button press would respond as the concerned pin is not to be used etc. Whether he is suffering due o that , Now, we may have to analyze.
are you connecting it alone? Like unplug it. Make sure the ICSP is not plugged in then plug it back to the USB (try another port) and see if it works with nothing connected. If that doesnt help it sounds like you need to check the data lines on the board not the power lines.Make sure where the D+/D- lines are on the board are ok and make sure the USB D+/D- pins are ok. Then make sure its not just your cable. Just because the cable works on something else doesnt mean that it will here the USB socket itself migh not be strong enough or supporting the wire good enough so it connects and disconnects alot.
If yopu don't fine local help over there, I am ready to handle your JUNEBUG and restore it at actual cost and/or freight charges. you may reach me on my mail. No point in further trying it before you reach a specific skill level. I am ripe with 30 yrs of servicing experience and willing to help
Capacitor C6 appears wrong on JUNE BUGI'll be working for the junebug to give ya a new life(aint no doctor though)after a week...
But I've made another nice PICKit2 of Gayan Soyza and mine PCB layout....really good...it works 100% perfectly without any trouble......here it's...
Bill, you also finished/started schemating junebug on this day before one year; not that? as the junebug manual's schematic page date suggests.....well, I finished it too today;26th december....what a similarity
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