Software for the 68HC05

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Here is a collection of HC05 software I've found useful.

Of course, the Freescale Software Library site is one of the first places to visit.

Pgmr5 is a dos program that will bootload your .s19 files into almost any of the 68hc(7)05 family members that have SCI or similar serial functions. You should be able to find a circuit to accomplish this in the Motorola data sheet for the particular Microcontroller of interest.

Harris used to second source some HC05's but is no more. Here is a copy of their assembler: HASM

From Motorola get for the MC68HC05

Stack is a set of subroutines to implement PUSH & PULL for the A & X registers.

Math16 is a 16 bit math package from an old HITACHI handbook.

Martin K鐷ler offers a free set of tools to develop software for EIB (european installation bus) buscoupler.

MCU Fluxfocus has the old EVM05 manual on its site for those who need it.

Design Ideas that make use of MC68HC05 microcontrollers. (You will have to register to view these articles.) EDN has changed their website so many times that I am not going to try to maintain the links. You can find the files by navigating thru the archives.

湣 controls charge pump as background task in the August 1, 1997 issue uses a MC68HC705K1
LCD interface saves 湣 I/O pins in the December 18, 1997 issue uses a MC68HC705K1
Cable tester is fast and cheap in the September 24, 1998 issue uses a 68HC705P9
湣 provides wireless keypad control in the October 8, 1998 issue uses a 68HC705J1A
Single wire connects microcontrollers in the October 22, 1998 issue uses a 68HC705J1A
Self-modifying code extends addressing mode in the December 17, 1998 issue for any 68HC05
湣 makes inexpensive sine-wave generator in the December 17, 1998 issue uses a 68HC705J1A
湣 generates musical sounds in the April 15, 1999 issue uses a 68HC705J1A
湣 forms FM oscillator in the October 28, 1999 issue uses a 68HC705KJ1
湣 generates a frequency burst in the February 3, 2000 issue uses a 68HC705KJ1
Microcontroller visualizes hex code in the April 27, 2000 issue uses a 68HC705KJ1
Cheap pushbutton replaces rotary switch in the October 26, 2000 issue uses a 68HC705KJ1
One microcontroller serves multiple external interrupts in the February 1, 2001 issue uses a 68HC705KJ1
Minimize communication time between small microcontrollers in the March 29, 2001 issue uses a 68HC705KJ1
Microcontroller selects minimum/maximum value in the September 21, 2001 issue uses a 68HC705KJ1
Microcontroller becomes multifunctional in the October 25, 2001 issue uses a 68HC705KJ1

at ELECTRONIC DESIGN use MC68HC05 microcontrollers. (You will have to register to view these articles.)

Pulse-Width Measurement Made By Microcontroller With MFT in the February 9, 1998 issue uses a MC68HC705K1 or J1A
Just Two ICs Can Create An Accurate Guitar Tuner in the September 14, 1998 issue uses a MC68HC705K1
Low Cost IR Data Link Controls Model Train in the March 22, 1999 issue uses a MC68HC705K1
Switch-Debouncer IC Creates A Long-Period Timer in the October 1, 2001 issue uses a 68HC705J1A

Low-Cost Voice Recognition in the February 1998 issue uses a MC68HC705J1A

Roger's Embedded Microcontrollers Home Page

This page written by Roger Schaefer. Last updated April 20,2006