Hi all, sorry this is my first post and please excuse any mistakes I make in this post.
Last night I was setting up my hexadrone based on the 3DR hexa, with APM 2.5 and there was an audible pop from the OSD and a thread of magic smoke got let out of it. There's now a microcrater in the MAX7456 chip just above (counting from the right on the top row with MinimOSD screen silk pointed rightside up) pin 4.
I had a couple semi-successful flights prior to this (couple hard landings), and was rechecking everything out and verifying the OSD was working for today's flight. Well, come to find out, even with the MinimOSD disconnected, I can't connect to APM anymore. I've tried my XP laptop, my Win7 64 laptop, nothing.
On the APM the Alive light is lit, and occasionally the C & A (Blue and Red leds) will flash and start over. Sometimes the TX/RX lights will go nearly solid, I can see the COM port on both machines, and it appears to be OK. I've tried loading the firmware, but I just get the message "Cant detect your APM version. Please check your cabling."
I've tried disconnecting all accessories, but I'm stuck now, having tried the Trouble Shooting guide. Any ideas?
Many thanks,
Sean
Replies
So after seeing which chip blew up on the board, I think I know what went wrong. I think I plugged in a camera gimbal servo to the ISP header. Mea culpa.
Would it be worth soldering an ISP connector and re-flashing the board? If so, what code should I use? Should I just use the Arduino bootloader flash? I don't want to make a bad situation worse, but I'm not unfamilliar with flashing through ISP. I flashed my T9X to custom firmware this morning.
Thanks again!