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I am starting out with the Technological Arts MicroStamp11. It looks like it has a lit of potential. I have experience with both Motorola and Intel microprocessors. I know how to write assembly language and C programs. That is to say I am not a rank beginner. I am having trouble. The manual and a provided tutorial have a couple of assembly language exercises that I used to generate a couple of S19 files. I had no trouble programming the MicroStamp11 with exercise 2. It flashes an LED on PortA.6 1 Hz 50% duty cycle. No problems. I tried to load exercise 1 and failed. I am using their MicroLoad tool. Since then I have not been able to figure out whether I have a flakey unit or if I have done something wrong. Some kind of communication problem or a write to EEPROM problem. I don't know. I am using PCBug11 to check operation. It manages to establish contact about half of the time. It act like a comm problem. Very much like a cold solder joint or a clock problem where the rate is close enough for PCBug11 to be able to talk part of the time and MicroLoad can't extablish contact. I have also tried the loader psm1 with the same result. When I put it back into normal run mode the program, ex. 2, that I loaded runs properly. I have tried several combinations of things to see if I could get this thing running. I have checked the serial port and cable by connecting it to another of my machines. They work. The computer I am using for this is a 486/100 running Win98. Any help out there. What should the registers look like for the HC11D0 processor for running and for downloading? Any suggestions about a good book on the HC11 specificaly containing details on the registers that include the HC11D3/0? Thanks in advance. Chuck Hughes

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"cwhughesiv" <cwhughes@s...> wrote (snips): > I am starting out with the Technological Arts MicroStamp11. It looks > like it has a lit of potential. > > I am using PCBug11 to check operation. It manages to establish > contact about half of the time. It act like a comm problem. Very > much like a cold solder joint or a clock problem where the rate is > close enough for PCBug11 to be able to talk part of the time and > MicroLoad can't extablish contact. I have also tried the loader > psm1 with the same result. Try JBug11 as an alternative monitor/debugger: http://freespace.virgin.net/john.beatty/index.html John Beatty

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