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raparram / Programador-I2C-RTD2660-Rpi3

Esta es una guía para programar las tarjetas PCB8000099 y PCB800661 usando como programador una Raspberry Pi . También puede ser utilizada como base para actualizar el firmware de cualquier tarjeta que implemente el RTD2660 y una memoria flash. Este repositorio se basa en la optimización del código de @mushketer888 (https://github.com/mushketer888/pyrtd2660i2c).
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HDMI default #3

Open Vitalic66 opened 5 years ago

Vitalic66 commented 5 years ago

Hallo, I dumped the bin from my winbond chip on the pcb800099. I'd like to set HDMI as default not VGA.

Where do I have to change the hex?

pietervandermeer commented 5 years ago

Just change it on the device.. Then use the flash tool to read the binary image again.

Vitalic66 commented 5 years ago

Thx for reply. So you mean to dump again with power plugged in.

Now i resoldered the chip to the pcb800099. And now turn it on, set it to HDMI, turn it off but let power plugged in, dump again with chip soldered and compare both dumps.

Vitalic66 commented 5 years ago

So i did as you said. Got a binary with vga as default now (chip desoldered and read with CH341A programmer) and a binary with chip soldered on PCB800099 and set to HDMI. I connected 8 wires from the chip on the board to the programmer.

When i connected the programmer with usb from laptop the PCB800099 turned on and i was able to select HDMI. Fom this state i dumped the binary.

Also repeated this way with vga as default.

So i compared vga desoldered with vga soldered binary dump, no difference.

Comparing VGA desoldered with HDMI soldered, too many differences. So how can i find out, wht to change to make HDMI become default instead of VGA.

Also tried writing HDMI dump to chip. Resulted in black screen...

pietervandermeer commented 5 years ago

A black screen? How much was dumped? The full 512kB? I've had experiences where it borked on reading out too few bytes.