Minimig not showing kickstart - help!

[boing4000]

I sometimes had the same problem after loading the kickstart. In my case it was a problem in kick.rom file, due to some unknown reason the file was damaged and could not work in minimig. After storing the same 512kb kick.rom (kickstart 1.3) file again it works.
Also try to quick reformat the sd card with FAT16 and fist of all store the minimig1.bin and then kick.rom file. After that you can store the adf files (order as saved) in root dirctory.
Maybe the tiny fat16 PIC firmware can not read the two files correct if they are far behind some .adf files or if they are fragmented.
Also try different kickstart version, only neat 68000 kicks will work in minimig. A1200/A4000 rom images expect 020+ cpu and will fail even in real A500/2000 with installed 68000.

In all cases after loading the kickstart into memory the minimig should do a reboot/reset. If that fails it will still show that last screen color. Try to reset manualy with ctrl+alt+alt.

[boing4000]

wolfchild wrote:
What I noticed is that the 68k and RAM buses are active during loading of the kickstart, but then go completely idle after the reset.  The only activity remaining is the CPU_CLK signal (68k pin 6).

I'm using a 512k KS1.3 and tried FPGA cores from Dennis and Yaqube.  If I don't get it running by end of week I'm going to shelf it until I have time to write a kickstart replacement that runs some extensive RAM tests.

Your minimig system seems to work just fine. All system clocks are operating, else the kickstart flashing would not appear because this is done by the bootloader block-rom inside the fpga core and 68000 processing.

I would say that there is (still) something wrong in your kickstart image file. Please check it (again) in UAE or just dump a fresh image right out on an working Amiga.
If this kick.rom file is already working with UAE, I can not really tell whats wrong.

A ram test is already present in the current core from Dennis: red, green and blue screen colors before loading the kickstart into ram. It tests with $55555555 and $AAAAAAAA pattern.

@BraindeaD
Im glad to be at service

[boing4000]

I wish good luck in finding the problem. Especially the Spartan fpga is very tricky to solder. I also did a bugfixing on an selfmade minimig from a friend, there was a short circuit between 2 pins from behind (not visible)!
Its hard to find out but I hope you can fix it.
PS: S-RAM is not that easy to damage, just for thinking positive