All 4 are tickable but only Com 4 or Com 5 will load sketches and they will only load to Mega 1 with Com 4 ticked, likewise Mega 2 with Com 5 ticked, with 1 or 2 IDE’s running I must use the correct Com port for the Mega I am working on.
#How to use megasync red x serial#
Now in Tools – Serial ports there are Com 1, Com 3, Com 4, Com 5. Now Device Manager shows Ardinuo Mega 2560 Com 4 and Ardinuo Mega 2560 Com 5.Įxcellent. So I clicked on the Mega 2 error “Ardinuo Mega 2560 showing with the yellow !” and installed the Com port driver. I left Mega 1 plugged in and live and plugged in Mega 2, now in Device Manger there is a second “Ardinuo Mega 2560 showing with the yellow ! ” as well as Mega 1 showing Com 4. In Tools – Serial ports the drop down has Com 1, Com3, and Com 4, all three are “Tickable” but only when Com 4 is ticked can I load a sketch……….? What I have found while doing a fresh IDE installation on another Laptop is that having installed Mega 1’s Com diver, using Device Manager it shows as COM 4 in Device Manager. Etc, etc, etc.ĭo we have a faulty Mega or have we lost the BootLoad OR ? Reboot with Mega 2 attached and the stack shows a red X. The stack reshuffles automatically without using the F 5 refresh. If I disable the Mega 2 with the yellow ! it comes back with a red X instead of the yellow !. Round and round Mega 1 always finds com 4. Reboot laptop go to Device Manger in Ports (COM & LPT) I am guessing that as the previously loaded sketch boots up and runs that it is not a BootLoader problem ? Verify same sketch as before, load and it runs.ĭoes this refence to “stk500v2” mean I have some how lost the Bootloader. Load sketch very long time, then error message.Īvrdude: stk500v2_getsync(): can’t communicate with device: resp=0x01Ĭhange over to other Mega 2560 Mega no.
Verify different Blink LED sketch with much longer times, OK.
Plug in the USB cable and the previously loaded pin 13 Blink LED starts and runs blinking the on board green led. 2 has no additions it is just the main board :. I am working with 2 Mega 2560s and one has stopped loading sketches.
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