Thanks for your reply. I am also sure that pico can sink and source more current than IPL because pico pin are GPIO and they can be configured to handle 'high" current. But how do you know that the IPL have current limiting resistor ? Is it obvious for any kind the chip like IPL ? Does a simila...

I agree with you about: On SPI bus, every peripheral device shall be connected in parallel to the SO line But when mounting the picoboot chip you shall also connect in parallel the CS signal. This is the reason i do not understand how it can work. Regarding EXTIN of BBA , for me it is not really for...

Hi, I try to understand how the picoboot can work regarding SO pin of GC IPL chip. Il seems that at boot time, the RPI Pico and the GC IPL chip get the CS, CLK signal, so both of them should drive the SO pin. But that is not possible, 2 chips cannot drive the same pin without a nice smoke. Moreover,...

Dear all, I would have a feedback on a issue i have. In GC memory model given by devkitpro examples, the CPU can access its RAM by a cacheable way at address 0x80000000 but also by a non-cacheable way at address 0xC0000000. For this ,i am OK. But if a program executes load and store 32bit word (stw,...

Dear all,

Is it possible to have a swiss software in a gcb format for qoob pro chip which will be launched at gamecube power up ?

Regards

Sorry for this last thanks, but thanks a lot. I have found in GCOS 1.5 source, a file named ipl.c with a function ipl_read which works when i use it to read the flash qoob. but i do not find a ipl_write or ipl_erase. I also found on eurasia a ipl_replacement.tar.gz of tmbinc with many sources but i ...

Dear all, I have been interesting in powerpc homebrew for only few months and i have choose the gamecube because it is cheap, well documented (thanks to YAGD) and the capacity to change the first instruction executed by the PPC with modchip was for me a perfect door for homebrew. I have written my o...