MembersPage/SeppoKihnia (2008-10-09 21:32:37)

I have a new unassembled GenBoard that I havent got working at all yet.

Done so far:


Serial connection

Soldered EC36 and EC18, EC18-pins14&15 to MAX232

and EC18-pins14&15 to serial cable

Exact pin-pin end-end connections ? (obviously very important. Measure)


All (you mean FETs and IGBT-s ? or stepper too ?) necessary output drivers and lastly the inductor 1R5 (from the rescue kit).

Connected the board to a JimStim 1.3 (http://www.jbperf.com/JimStim/index.html) EC36-Pins5,21,22,26,32 to JimStim accordingly, EC36-Pin25 also to JimStim, serial GND to common ground point between GenBoard and JimStim.

At this point I tried to get first connection with GenBoard.

Tried several methods to connect but didn't get any answer.

At least try these:

Loopback tested my serial port successfully.

To be sure that board is powered I measured the MAX232 and the processors Vcc voltage which was high as 10volts.

10 Volts ?? compared to what ? It should be 5 Volt compared to ground.

It is measured, and tested (bootloader is uploaded via ISP, than several tests made via serial).