In SX Microcontrollers, SX/B Compiler and SX-Key Tool, wikst wrote:

Hello,
 

this is my first post here and it also concernes my first attempt to program a sx. The problem is that my sx got fried as I connected it for programming (followed Practical SXB and connected it as in sxkeyman2_0 page 13).

 

After my chip had gotten fried I started testing what could be wrong, and found that both on my fried chip and on a fresh one, if i connected 5V -> 470 Ohm -> led -> Vdd-pin, Vss-pin -> gnd the led was on.

 

So the question is: What have I missed?! I can't see that the vdd-pin and the vss-pin are supposed to be internally connected =P

 

The chip I have is a 28-pin sx with the text "sx28AC/DP-G 0602", (and the programming device I have is a blitz).

 

Regards

 

/Esa

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