http://tech.groups.yahoo.com/group/68HC12/ 68HC12 Tue, 30 Jun 2009 12:21:43 GMT Joe McCarron http://tech.groups.yahoo.com/group/68HC12/message/16459 http://tech.groups.yahoo.com/group/68HC12/message/16459 If you are running your program in debug then one of the serial ports are taken up by debug12. Are you using the one not used by dbug12 ? Wed, 24 Jun 2009 20:02:38 GMT bkmohlman@... http://tech.groups.yahoo.com/group/68HC12/message/16458 http://tech.groups.yahoo.com/group/68HC12/message/16458 I will be out of the office starting 06/19/2009 and will not return until 06/29/2009. I will respond to your message when I return. Wed, 24 Jun 2009 16:04:53 GMT Michael http://tech.groups.yahoo.com/group/68HC12/message/16457 http://tech.groups.yahoo.com/group/68HC12/message/16457 ... Check out the HCS12XA family you can get up to 6 SCI's. The 9S12A256 that I use has 3 SCI's but only in the large chip version. In the small chip version Wed, 24 Jun 2009 15:42:42 GMT Donald E Haselwood http://tech.groups.yahoo.com/group/68HC12/message/16456 http://tech.groups.yahoo.com/group/68HC12/message/16456 The MC9SE128 has three (independent) SCI ports. Regards, Donald E Haselwood On Wednesday 24 June 2009 11:31:33 am Wed, 24 Jun 2009 15:34:47 GMT jmeyer@... http://tech.groups.yahoo.com/group/68HC12/message/16455 http://tech.groups.yahoo.com/group/68HC12/message/16455 I have been looking, but I can't seem to find any HCS12 products with more than two undependant SCI ports. Does anyone know of a HSC12 product that does? Thu, 18 Jun 2009 22:37:22 GMT Tom Almy http://tech.groups.yahoo.com/group/68HC12/message/16454 http://tech.groups.yahoo.com/group/68HC12/message/16454 The Dragon12+ board contains a driver that will work fine for at least small stepper motors. You can jumper the driver to power it from a separate supply. If Thu, 18 Jun 2009 20:54:40 GMT James Cheesetom http://tech.groups.yahoo.com/group/68HC12/message/16453 http://tech.groups.yahoo.com/group/68HC12/message/16453 The Seattle Robotics Society has a number of good articles on the use of the 68HCS12, including servo motors. Here is an example: Thu, 18 Jun 2009 15:08:59 GMT nixknacks http://tech.groups.yahoo.com/group/68HC12/message/16452 http://tech.groups.yahoo.com/group/68HC12/message/16452 The problem you are probably running into is power consumption. The board can not supply enough current to run a stepper motor. You are going to need to setup Wed, 17 Jun 2009 19:19:11 GMT Matthew Dauer http://tech.groups.yahoo.com/group/68HC12/message/16451 http://tech.groups.yahoo.com/group/68HC12/message/16451 I am sorry if this is a duplicate post. I'm not sure if the orig. Post went through. I need help connecting the motor with the dragon board and its not Tue, 19 May 2009 14:11:35 GMT Johannes Schmid http://tech.groups.yahoo.com/group/68HC12/message/16450 http://tech.groups.yahoo.com/group/68HC12/message/16450 Hi! ... Just for reference. The solution was that there is a bug on the board connecting TXCAN and RXCAN with about 2 Ohm (instead of infinite resistance). We Mon, 18 May 2009 20:54:57 GMT Edward Karpicz http://tech.groups.yahoo.com/group/68HC12/message/16449 http://tech.groups.yahoo.com/group/68HC12/message/16449 Joel is right, interrupt every 1us is overkill. Minimalistic interrupt service routine, even without mandatory flag clear sequency would take 9+8 bus cycles Mon, 18 May 2009 15:09:45 GMT jpdi http://tech.groups.yahoo.com/group/68HC12/message/16448 http://tech.groups.yahoo.com/group/68HC12/message/16448 Hi, As I told you in my precedent mail, I think you can't increment a character each micro-second. The reason is this delay is too short for that processor. As Mon, 18 May 2009 12:38:38 GMT Sven K http://tech.groups.yahoo.com/group/68HC12/message/16447 http://tech.groups.yahoo.com/group/68HC12/message/16447 Hello, ... interrupt each micro-second. ... processor. I need to increment a variable every micro-sencond. I am implementing an CANopen stack at the Sat, 16 May 2009 20:59:15 GMT rimko_avr http://tech.groups.yahoo.com/group/68HC12/message/16446 http://tech.groups.yahoo.com/group/68HC12/message/16446 Hi all, I need source for this debuger www.avenhaus.de/Malte/BDM12/bdm.zip for AVR and PC If you have send me to rimko@... Many thanks . WBR Roman. Thu, 14 May 2009 17:06:45 GMT ga5941 http://tech.groups.yahoo.com/group/68HC12/message/16445 http://tech.groups.yahoo.com/group/68HC12/message/16445 FLTSIN subroutine did not work correctly for an input of 215 degrees. The bug is fixed by replacing: LDX three60 by: LDX #three60 in the ANGRED routine several