Self starting p1v
pik33
Posts: 2,366
I made some changes in booter, so when it cannot boot from PC it starts from its RAM.
To do this, I used unscrambled Propeller.
In hub_mem.v:
I wrote a short program in Lazarus to convert .eeprom file to test1..4.hex
To make self startting p1v,
(1) use unscrambled p1v
(2) make changes to hub_mem.v as above
(3) use attached unscrambledrom.hex instead of original
(4) compile spin program to .eeprom
(5) use attached exe to convert .eeprom to 4 testx.hex files. The exe is 64bit. If you have 32bit system or not Windows system, recompile from the source (Lazarus needed)
(6) place testx.hex files in quartus project directory
(7) compile quartus project
After programming the fpga, the propeller will start with your program. If you make .pof, the propeller will start with your program after you switch your board on
This version of p1v will not work with real eeprom. There is possibility to change the booter so it will start the preprogrammed code only when it cannot find eeprom, but it will need some more hacking
To do this, I used unscrambled Propeller.
In hub_mem.v:
initial
begin
$readmemh ("unscrambledrom.hex", rom_high);
$readmemh ("test4.hex", ram3);
$readmemh ("test3.hex", ram2);
$readmemh ("test2.hex", ram1);
$readmemh ("test1.hex", ram0);
end
I wrote a short program in Lazarus to convert .eeprom file to test1..4.hex
To make self startting p1v,
(1) use unscrambled p1v
(2) make changes to hub_mem.v as above
(3) use attached unscrambledrom.hex instead of original
(4) compile spin program to .eeprom
(5) use attached exe to convert .eeprom to 4 testx.hex files. The exe is 64bit. If you have 32bit system or not Windows system, recompile from the source (Lazarus needed)
(6) place testx.hex files in quartus project directory
(7) compile quartus project
After programming the fpga, the propeller will start with your program. If you make .pof, the propeller will start with your program after you switch your board on
This version of p1v will not work with real eeprom. There is possibility to change the booter so it will start the preprogrammed code only when it cannot find eeprom, but it will need some more hacking
Comments
Do you have your particular source mods of booter.src available? I didn't want to have to reverse engineer your hex file to see what you've changed. Yeah, feeling lazy today.
Good work.