snops

15 ms·

121.
by snops 11y ago
>Are you talking about the flash driver for loading external SPI flash? I was slipping into talking about ARM microcontrollers there, which have internal flash. Reads from it are memory mapped, but writes generally require feeding periph
122.
by snops 11y ago
In the microcontroller world, expensive debug dongles are essentially hardware keys for the software included. Lauterbach's[1] Trace32 for instance don't even have software keys, the license for their very extensive debugging soft
123.
by snops 12y ago
From the pdf walterbell linked to,section "System Overview": >...two ARM® Cortex-M0 processors are located in separate layers with different functionality as follows: >The DSP CPU efficiently handles data streaming from the
124.
by snops 12y ago
>I'd expect they'll use one of the Cortex-M0 uCs with built-in BLE radio (like those made by Nordic or Cypress). Actually, it sounds more like there will be a Freescale Microcontroller on board: >Both Freescale and Nordic Se
125.
by snops 12y ago
> As far as I can tell this targets only Arduino micro controllers. This appears to be the case[1], in fact it currently needs the Arduino IDE to be installed as well to work, though it appears they plan to expand to a wide range of plat
126.
by snops 12y ago
To give an example, a raw 4K stream at 12 bit is about 500MB/s, so unless it has 2000 4K cameras, unlikely.
127.
by snops 12y ago
The CoAP protocol does exactly this and is designed for the exact kind of restricted requirements you specified. It uses similar concepts to Restful HTTP to make the transition easier, but uses a binary protocol instead. You can even get ga
128.
by snops 12y ago
Half of the problem is recieving signals back, as you can't just turn up the power on the satellite. I suppose if you knew exactly what command to send, and there was no form of handshaking this might not be a problem.
129.
by snops 12y ago
There is a good initial code review which points out the alarming bug that keys are _hardcoded_ in the symmetrical encoding mode, and can be found in the source! "Basically the script encrypts a randomly generated ephemeral key using R
130.
by snops 12y ago
Thermal fuses are actually pretty small, this one (which is pretty representative): http://uk.farnell.com/nte-electronics/nte8065/fuse-thermal-c... is about the size of a 1/4W resistor at 12mm long. A fuse i