I was only able to upload a sketch once. This was the Servo Sweep example and the board executes it fine. But when I try to upload a new sketch the board blinks green LED 3 times after few seconds, and after another 7-8 seconds it blinks one more time. After that sequence the IDE (I've tried versions 13 and 15) shows an error message indicating there is no communication with the board.
I am using the SerCon interface card from Mikrokopter open source project. I will post a link later as this forum does not allow me to have links in my first post (weird).
Arduino board is connected to ISP1 as follow:
JP1 - ISP1
CTS - 10 VCC - 2 TXO - 8 RXI - 3 DTR - 5
I've read troubleshooting FAQs and I did a search here, but I still can't find an answer.
Any suggestions how to troubleshoot this problem?