How to program 68hc11

Make sure the labels begin in column 1. Bring up the AxIDE program and press the reset button on the board.

The AxIDE window should look like this:. It is probably easier to run the assembler from a command prompt window. From the command prompt window, type:.

Once the program has been uploaded you will see:. Carefully study what each instruction is doing. By itself, it cannot execute any programs without being programmed via an external interface to a PC. A microcontroller may also need an external crystal to provide a clock, however some have an internal clock. Some microcontrollers such as Microchip's PIC32 have two sections of flash memory; one to hold initialization boot code, and another to store the application. This makes it easier to update the application code in-place.

For your purpose, you would want to use a microcontroller, not a microprocessor. To use a microcontroller, you would either have to design your own board, or buy some sort of development board. These peripheral boards are called shields , and are designed to stack on top of each other there are male pins on the bottom of the boards to connect to the Arduino itself or another shield, and female headers on the top to accept the male pins of a shield stacked on top of it.

However I don't know of any resistive touch screens that would be used just for detection without an LCD. It was designed to introduce programming to artists and other beginners, much as the BASIC language did 50 years ago. A program for Arduino is called a sketch. The microcontroller is typically preprogrammed with a 'bootloader' program that allows a program called a 'sketch' to be loaded into the microcontroller over a TTY serial connection or virtual serial over USB connection from a PC.

The IC may contain cache memory but it is not designed to be usable without any external memory. Microprocessors cannot store programs internally and therefore typically load software when powered on, this usually involves a complex multi-stage 'boot' process where 'firmware' is loaded from external ROM and eventually an operating system is loaded from other storage media e. Microcontrollers can function without external memory or storage. Typical microcontrollers are much simpler and slower than typical microprocessors but I believe the distinction is mostly one of scale and application.

Most of the boards use Atmel AVR microcontrollers. Index to all documents, tutorials, and user guides. DocWeb Home Page. Using this DocWeb. Single Board Computers. Starter Kits.

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