Loading the Asteroids_Demo_13.SPIN on the RAM

8Phillip

In chapter 15, page 248, and experiment 3 tells you to load the demo to the Hydras' RAM. I already have the Alien Invaders demo on the EEPROM. When I·try to load the·new·demo,·my TV tells me that there is·no signal coming·from the Hydra any more. What do I do?

Coley

Hi 8Phillip,

Welcome to the forums

I just ran this demo up on my board and it is fine, have you modified the file in any way?

I just loaded the file and pressed F10 to load to RAM

Does the first block still look like this.....

CON

  _clkmode = xtal2 + pll4x            ' enable external clock and pll times 4
  _xinfreq = 10_000_000 + 0000        ' set frequency to 10 MHZ plus some error for xtals that are not exact add 1000-5000 usually works
  _stack = ($3000 + $3000 + 64) >> 2  'accomodate display memory and stack

Regards,

Coley

PS Don't forget that you can't post the code from the Hydra CD / Book, just a word to the wise....

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
PropGFX Forums - The home of the Hybrid Development System and PropGFX Lite

8Phillip

The programing code looks just like the one you posted. I tried it· again and it still does not work. Could the RAM on the HYDRA be bad?

Coley

not if alien invaders works, on bootup the prop loads any code from the eeprom to ram, then the code is executed from ram.

have you tried to write a simple program that flashes the debug led?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
PropGFX Forums - The home of the Hybrid Development System and PropGFX Lite

Paul Baker

Hey Phillip, you ever Asteroids to work for you?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Paul Baker
Propeller Applications Engineer

Parallax, Inc.