Search found 45 matches

by bbmike
Sun Jan 22, 2023 8:53 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

kur4o wrote:I also tested the ipchammer, some functions work, others not, On read properties it stops, when there is a negative 7f response. Maybe some exception can be added, so info from non fully supported ipcs still can be read.
I looked into this and fixed it today. So it will work in the next version.
by bbmike
Sat Jan 21, 2023 12:58 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

Nice to see you got it to read out correctly. I had to go back and learn to calculate the checksums again. I'm starting to get interested in messing with the clusters and updating IPChammer again. Thanks for the script to read the clusters. Do you have any info on how to write the scripts? like what...
by bbmike
Fri Jan 20, 2023 10:28 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

If I remember correctly you have to do 16 bit big endian sum and then 2’s complement.
by bbmike
Thu Jan 19, 2023 11:39 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

I’ll have to look for the checksum math. The range of 8000-bfff would be used for external access. I don’t think the clusters use the external bus. All the boot loader is in 0-3fff. The calibration should be in 4000-7fff.
by bbmike
Thu Jan 19, 2023 9:24 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

The os checksum should be from 0x18002 to the last byte before the 0xC3A5 at the end of the os. If you change the 0xC3A5 at the end of the os and make a bin with just the os the test checksum button in ipchammer should work to calculate the checksum.
by bbmike
Thu Jan 19, 2023 3:14 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

I use minimon from Infineon with a usb to serial adapter. Fixed until broken on YouTube has videos on how to do it.
by bbmike
Wed Jan 18, 2023 12:28 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

Looking at your file. It looks like you dumped the bootloader and calibration. The bootloader starts at 0x0000 and the calibration starts at 0x4000. The OS starts at 0x18000 and ends at 0x1FFFF. I believe that the ram starts at 0xC000.
by bbmike
Wed Jan 18, 2023 11:14 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: IPC Hammer
Replies: 112
Views: 294457

Re: IPC Hammer

You can get it at https://github.com/mikebb203/IPC-Hammer. It won’t program a trailblazer yet.
by bbmike
Fri Jan 13, 2023 12:55 pm
Forum: Engineering and Reverse Engineering
Topic: JTAG(ish) access to IPC V850
Replies: 17
Views: 8975

Re: JTAG(ish) access to IPC V850

That would be great. No worries about quality. I still need to learn all the steps to design my own prints.