----- Original Message ----- From: "chonchet1" <> To: < > I am using the above development board for my final year project and > 1. Change the start address of your program to $D000 which is the > beginning of the On-Chip PROM in a 68HC711 device. That is assuming your code actually starts at $D000, otherwise, whatever address your code starts executing. (Canned instructions are sometimes more trouble than help.) > 2. Change the Reset Vector in your code to $D000 then re-assemble it. Same as [1]. > 3. Apply a 12V DC programming voltage to the VPP connector. I don't know this board but I believe it means to first connect the 5V, then the 12V. > The problem occur at step [9], where i am trying to program the > program codes into memory, and the screen is displayed with an error > message of "timeout waiting to receive bootloader response > character". what that message mean? is it a cable connection error? It means there was no BREAK received from the board. So, again, check your power connections. > microcontroller and the cable. besides, the port setting are 8 data > bit, 1 stop, no parity,and 9600 baud rate. Again, I don't if the software does this automatically, but for boot mode (for an 8MHz device) the correct setting is 1200 baud, not 9600. > chonchet |