baobrien

10 ms·

91.
by baobrien 9y ago
My reading of the blog post is that it'll be released in Q1 of 2018. Until then, they're giving a few FPGA stand in boards out. The dev board itself will also use an FPGA to implement a few SoC peripherals, like USB and HDMI.
92.
by baobrien 9y ago
According to the workshop summary, they plan to ship a Linux capable dev board with hard U54 silicon in Q1 of 2018. http://www.lowrisc.org/blog/2017/11/seventh-risc-v-workshop-...
93.
by baobrien 9y ago
For smaller audio files, take a look at the Opus codec. It does way better than mp3 at lower bitrates. Android 5.0 and up can decode it natively and there's a library with NDK that should work on older devices.
94.
by baobrien 9y ago
It's a full blown x86 emulator written in javascript.
95.
by baobrien 9y ago
I lost data to this one after building a 4.14 kernel.
96.
by baobrien 9y ago
Arm Cortex M3 and up cores usually have 'Memory Protection Units'. The MPU allows you to set permissions on memory regions and gives basic kernel/application isolation.
97.
by baobrien 9y ago
Proper host-aware and host-managed SMR drives have their own command set to manage zones. It's kind of like TRIM, but specific to SMR drives.
98.
by baobrien 9y ago
Ockham's razor, maybe? Mental illness is a thing we have observed; magic 10 dimensional eyeballs aren't.
99.
by baobrien 9y ago
It looks like the control group just didn't survive for quite as long as this particular strain of rats usually do. Probably just a statistical fluke with the seemingly small (to a non-biologist) sample size. From 'Conclusions&#x2
100.
by baobrien 9y ago
100-500mW/Kg might still be appropriate, though, if you are dissipating a significant fraction of that 1-2W in your body. I have to imagine that most meat-power-dissipation would be pretty well concentrated near the transmitter.
101.
by baobrien 9y ago
Here's the preprint 'Report of Partial Findings' paper: https://www.biorxiv.org/content/biorxiv/early/2016/06/23/055... As a non-biologist, the amount of power being exposed to t
102.
by baobrien 9y ago
I don't know about working as well as it does in VirtualBox, but with the QXL guest driver to do screen resizing and clipboard sharing, it's not too bad.
103.
by baobrien 9y ago
On Linux, I've been using kvm with libvirt and virt-manager as the GUI.
104.
by baobrien 9y ago
I'm seeing $5300 at Mouser and Digikey, but none in stock yet. http://www.mouser.com/ProductDetail/Microsemi/090-02984-001/...
105.
by baobrien 9y ago
Yeah, I don't see why not. USB-C PD negotiation is not done over the USB 2.0 data bus.
106.
by baobrien 9y ago
The SiFive coreplexes themselves are based on the UCB-BAR Rocket core generator, which is open source. Most of the SiFive founders worked and still contribute to Rocket.
107.
by baobrien 9y ago
I don't know much about SiFive, but I have heard that Mill Computing is bootstrapped and doesn't want to take any VC funding.
108.
by baobrien 9y ago
HackRF is closer to $300, can transmit, but isn't Full Duplex. The LimeSDR (the original one) can also be had for around that price, and has two RX and TX full duplex channels, but not a whole lot of RF front end. HackRF would, however
109.
by baobrien 9y ago
Thanks! I missed that. $5 per chip is really not bad for a higher end microcontroller, especially with the 'low volume' tax.
110.
by baobrien 9y ago
Does anybody know if/where you can just buy the FE310 on it's own?
111.
by baobrien 9y ago
I don't see why a RISC-V core can't be built to run as fast or as efficiently as an x86 on the high end. With the C extension for compressed (16-bit) instructions, the dynamic and static code size is very close to x86 and usually
112.
by baobrien 9y ago
I'd imagine that phones are usually the easiest to recover, assuming the storage is not encrypted and the flash chip is not physically damaged. Just pop off the flash memory, pop into a socket, and go to town. No dealing with controlle
113.
by baobrien 9y ago
Yep. I've been running it on nightly for a while now just by going to the development channel version.
114.
by baobrien 9y ago
The TI-Nspire and Nspire CX both come in CAS variants that can also do that.
115.
by baobrien 9y ago
There's also a high-res DS render from an emulator here: http://i.imgur.com/d52hfEr.png part of this album http://imgur.com/a/XQCEJ
116.
by baobrien 9y ago
I'm not sure about the trend in general, but it looks like SpinalHDL is a fork of Chisel, the 'other' Scala-based HDL.
117.
by baobrien 9y ago
IEEE articles can be 'obtained' on Sci-Hub.
118.
by baobrien 9y ago
I wonder how small a minimal bootable kernel, with all the drivers in modules, would be.
119.
by baobrien 9y ago
The kernel alone on my laptop is larger than 4mb, and that doesn't include the initrd (though the article talks about that) -rw------- 1 root root 7.3M May 17 16:13 vmlinuz-4.10.0-22-generic
120.
by baobrien 9y ago
To add, in the case of RISC-V, the base integer ISA and most of the core extensions use fixed length 32-bit encoding (RV32/64 E/IMFAD). The basic encoding, however, allows for shorter and longer instructions in 16 bit increments.

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