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Software / pid.codes
« Last post by Mine on April 03, 2015, 12:53:47 PM »
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Wow. But let me ask a noob question:
While it is highly impressive to see a UNIX implementation running in 128 K RAM - what would be the benefit of it putting in as the underlying layer into an EC? 512 / 128 K is still probably a bit more than average in a µC (well, at least for the relatively small things that I know) and you'll have then used all the memory already for RetroBSD. Now what would be the benefit? Will this facilitate programming for the fan control, charging, Super-I/O and so on? I guess the programming work would be quite similar, because e.g. the logic to charge a battery will still stay the same. But then, why add another layer?
But it is impressive either way. Looks like there was some efficient programming going on.
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http://retrobsd.org/wiki/doku.php

requires 512KB of flash and 128KB of ram
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CPU Mainboard Modules / Re: Laptop vs Desktop APU
« Last post by Mine on March 31, 2015, 08:46:31 AM »
Carrizo is just around the corner so why use the older mobile APU?
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CPU Mainboard Modules / Re: First CPU Module Specs
« Last post by Mine on March 31, 2015, 08:44:16 AM »
1. Is it suitable for a mobile use? (A88X is normally seen in desktop mainboards)

Some people want desktop performance and lots of IO in their laptop. This gives it to them.

2. Will Carizzo already have something built in? E.g. Kabini is already quite a SOC and has built in an A68M (or something very similar) on the APU.

Carrizo has it's own FCH. But it has limited IO and performance compared to desktop. If enough people want it we'll make a cpu module based on it.
http://www.extremetech.com/computing/178752-amds-next-gen-carrizo-apu-features-leaked-shows-greater-focus-on-power-efficiency
http://news.softpedia.com/news/AMD-Carrizo-APU-Leaked-Has-DDR4-but-Is-Crippled-in-PCI-Express-Support-433081.shtml
http://www.guru3d.com/news-story/amd-kaveri-successor-carrizo-to-get-ddr4-support-and-fch.html

3. How many blobs are needed? E.g.: Is the USB3 AMD's own or is it Renesas?

Check with coreboot. When given the choice between open and performance most people asked for performance.
If enough people want a totally blob free version we can use an old fam10 cpu and make a cpu module for them.

Could Renesas be persuaded to open a blob?

You can try. Blobs are sometimes used to obscure the hardware design if patents are involved. Most often it's more a psychological problem. Blobs give a little more power and control to those who have the source, this makes them feel slightly better about themselves.

I haven't heard about M.2 before

M.2 is the replacement for mini-PCIe sockets.
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CPU Mainboard Modules / Re: First CPU Module Specs
« Last post by Adarion on March 31, 2015, 03:30:01 AM »
The chipset is nice, however for me a few questions remain:
1. Is it suitable for a mobile use? (A88X is normally seen in desktop mainboards)
2. Will Carizzo already have something built in? E.g. Kabini is already quite a SOC and has built in an A68M (or something very similar) on the APU.
3. How many blobs are needed? E.g.: Is the USB3 AMD's own or is it Renesas? Could Renesas be persuaded to open a blob?

Cause I haven't heard about M.2 before maybe other are also interested:
http://en.wikipedia.org/wiki/M.2
It's a combination of SATA and PCIe, both in one small slot interface.
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CPU Mainboard Modules / Re: Laptop vs Desktop APU
« Last post by Adarion on March 31, 2015, 02:57:29 AM »
Is there anything very surprising about the benchmark? The mobile APU does quite well.

But then
a) Benchmarks are just benchmarks and can be misleading (type of benchmark vs. reality, compiler options and so on)
b) for a laptop one should always use a mobile APU that is meant for mobile -> power consumption / power saving functions, max. heat evolving etc.
The few examples of "desktop replacements" did not work out so well in the past.
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Hardware / MPC563xM: Freescale 32-bit MCU for Powertrain Applications
« Last post by Mine on March 30, 2015, 04:13:28 PM »
open5xxxecu.org  What they are using for hardware


MPC563xM: Freescale 32-bit MCU for Powertrain Applications
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPC563xM
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General Discussion / March 32nd
« Last post by Mine on March 29, 2015, 10:46:24 PM »
March 32nd
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Hardware / High Performance MPC555 ECU Project
« Last post by Mine on March 29, 2015, 03:29:56 PM »

 High Performance MPC555 ECU Project
http://www.sonic.net/~mikebr/ecm_555/main_555.html
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