Writing into specific memory addresses?

shiznitzzler

I have just joined this forum and I've searched the internet a bit in trying to answer the question to my problem, but perhaps the best·place to ask is here. I will be as direct in my explanation as possible. If anyone reading this wishes me to disclose more details, let me know and I will.

I am currently taking a class that requires myself and my classmates to interface Visual Basic and Javelin Stamp. In this interface, data will be sent back and forth serially.

What I want to know is, when I'm sending information from·a PC running Visual Basic,·if there is a way for me to write specific data fields into specific memory addresses on the Javelin Stamp (and, although unrelated, also if there is a way to write specific data into specific memory addresses on a PC using Visual Basic when going from the Javelin Stamp to the PC).

I appreciate any attempt to answer my question.

Peter Verkaik

You need to specify a protocol that allows you to do that.
For example:
From pc to javelin: startmarker,commandbyte,addressbytes,valuebytes,endmarker
You need to write javelin code that decodes the received bytes according to
your protocol and then write the values. There is a CPU.writeSRAM() method
but you better not use that as it probably destroys the internal javelin
datastructures. Better to declare a char array of N bytes, so you can write
to addresses 0 to N-1.
There is also EEPROM.write() that allows you to write to the unused area of
the javelin eeprom.
For javelin to pc you can specify an identical protocol.

regards peter