thejld said:
Its basically impossible to reflash a pic and idk about a 555, matt, howmany free samples can u get?
dude I am sorry to say this, but you need to stop trying to help people and learn a small bit about what your talking about. I have been nice, but now you just sound like a dumb ass.
you can reflash any MC insert it into a programer, open hex file and click program, the programer will first erase the PIC and reprogram it with the new hex file loaded into your programer.
It sounds like you want to preform incircut programing, as fredrow said do some research, find a pic that suits your needs and write a program for it. YES picaxe is capable if ICP, but then again so are most MC's today.
the 555 timer CANNOT be programed. it is a timer. do the research. didnt I provide you the data sheet? if not look it up. in lamans terms the 555 is a light switch that continuously keeps flipping up and down, or on and off. if you add an outside factor to the light switch (say tape a penny to it) it will create resistance and the switch wont flip as fast, this is what the resistors and capasitors are used for when using timers.