Don Stanley wrote: > Hi All; > What conditions do the JP1 and JP2 set? > I need 0-10 Volt from the DAC, preferably using all eight bits. > As shipped, the jumpers allow SSR1 to enable positive outputs, and SSR2 enables negative. With both SSRs off, output is set to zero.
If you want positive output when either SSR1 or SSR2 is on, remove JP1, and put JP2 to the middle position. If you think of the 4 pins as a "T", then the jumper goes on the vertical bar of the T. This way, SSR1 and SSR2 enable and control the direction of the spindle, and the DAC only provides the speed. If you want the DAC totally independent of SSR1 and SSR2, then remove JP1, and move JP2 so it is closest to the JP2 marking. You always get the full 8-bit (0-255) range of outputs. Jon ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
