I liked the answer to the HW-655, it looks very clean and alleluia! But when I tried it with three relay modules it does not work. The STC-ISP gets stack on "Checking target MCU ... ". I tried different settings to no avail.
After probably 16 hours I am ready to throw the towel but I refuse to give up.
Is there anything that you are omitting like the STC-ISP settings, resetting the MCU, ...?
I have the same results as Bizebua.
In very, very few occasions I ask a question but this time around I have run out possible leads.