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looks pretty reasonable altho I'm not so sure about their ide and accompanying language
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Aug 26, 2015 12:14
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Bloody posted:looks pretty reasonable altho I'm not so sure about their ide and accompanying language oh i didnt see it uses its own special snowflake ide and language, hmmmm anything you recommend instead that uses a real language?
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Aug 26, 2015 12:18
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or do all fpgas use special snowflake languages? like i assumed there'd be a custom library and compiler for C or something
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Aug 26, 2015 12:34
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you can apparently use that board with grownup tools but since its a spartan-6 that limits you to ISE (which has been replaced by vivado for new parts) i use these eval boards by the truckload at work: https://www.digikey.com/product-sea...22767?k=agln250 but those are just lil igloo nanos which are kind of specialized for low power and stuff microzed boards are pretty deece depending on your price point although those are zynq boards (fpgas with a pair of cortex-a9s)
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Aug 26, 2015 12:37
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Awia posted:or do all fpgas use special snowflake languages? oh dear
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Aug 26, 2015 12:38
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well actually in this modern age, kind of almost yes that is an option (vivado HLS is a C -> RTL compiler) but generally no, fpga development is done in verilog or vhdl
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Aug 26, 2015 12:38
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Bloody posted:verilog or vhdl these were the words i was looking for
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Aug 26, 2015 12:39
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they're good in that they're languages designed for describing hardware and logic but they're bad in that they're languages designed by people who have no place designing languages
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Aug 26, 2015 12:39
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i have no idea what im doing!
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Aug 26, 2015 12:40
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same except this is literally my job 
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Aug 26, 2015 12:40
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Bloody posted:same except this is literally my job same except i really truly have no idea what im doing, vhdl is confusing send help actually vhdl isnt that hard, timing constraints and getting the loving thing to meet timing is whats hard
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Aug 26, 2015 18:27
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JawnV6 posted:anyone have experience with RIOT, contiki, or other "iot rtos" solutions? our next product uses freeRTOS and it seems good so far
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Aug 26, 2015 19:21
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Arcsech posted:same except i really truly have no idea what im doing, vhdl is confusing send help step one don't use vhdl use systemverilog or however much of sysv your toolchain supports
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Aug 26, 2015 19:40
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DuckConference posted:our next product uses freeRTOS and it seems good so far my last job shied away from FreeRTOS and thought that uPython was a better realtime multitasking solution (????????????????????) [ask] me about making python run on an bespoke hardware stack on a kinetis k64
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Aug 26, 2015 21:34
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lmao forever
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Aug 26, 2015 21:46
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ferrets has v. nice integration with the atmel stuff too, i am very much enjoying it
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Aug 26, 2015 21:47
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Bloody posted:step one don't use vhdl use systemverilog or however much of sysv your toolchain supports I am the low man on the totem pole in my group and its all I can do to get people to use git instead of the garbage ancient proprietary version control thing. No way am I getting anyone to use system verilog (and most of my job is "take the thing that the graybeards made and modify it to fit into this smaller slower part")
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Aug 26, 2015 21:57
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Awia posted:or do all fpgas use special snowflake languages? hahhaha i have used thints designed in system c before and if you have ever wanted to not be able to debug something then that's the way to go.
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Aug 26, 2015 21:58
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Bloody posted:they're good in that they're languages designed for describing hardware and logic but they're bad in that they're languages designed by people who have no place designing languages vhdl: a language where everyone overloads the + operator out of the box because no thought went into designing it.
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Aug 26, 2015 22:01
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Bloody posted:step one don't use vhdl use systemverilog or however much of sysv your toolchain supports i was happy with mixed language environments until one time it didn't work right and i still have nightmares about it.
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Aug 26, 2015 22:13
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picture a vhdl testbench with a vhdl behavioral model of a mipi interface, and a DUT with 8 layers of hierarchy in vhdl before you get to the mipi phy rtl which is systemverilog and then you tuen on the vhdl mipi testbench and the boundary between the vhdl rtl and the sv rtl is not translating Xs or Zs correctly so it won't work at all and you file a bug with the simulator vendor and they say it won't be supported for two years and then you have to write a translation layer in BOTH languages that goes inside the DUT during simulation to make it work but you have to remove the translation layer for synthesis.
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Aug 26, 2015 22:22
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was 4value actually getting you anything besides pain
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Aug 26, 2015 22:25
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JawnV6 posted:was 4value actually getting you anything besides pain for my simulations no but for the analog people who would want to hook up a behavioral model in place of my vhdl bfm i think it was important for some analog reason i don't understand.
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Aug 27, 2015 00:43
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we're using FreeRTOS and it's pretty dece. anyone used the premium libraries or tools? spending weeks implementing rudimentary functionality is getting kinda old but welcome to embedded i guess
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Aug 27, 2015 02:37
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any of you lot ever used a photon for anything? this nodejs based embedded dev toolchain is the worst thing i've ever seen
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Aug 30, 2015 18:42
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Corla Plankun posted:any of you lot ever used a photon for anything? this nodejs based embedded dev toolchain is the worst thing i've ever seen i got one sitting on my desk waiting for me to get back and play with it
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Aug 30, 2015 23:05
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I played a fair bit with the Core (predecessor that uses same framework) and liked it until I discovered the older chipset just wouldn't talk to a customer's wireless router. Photon nixes that issue while also having some badass options for OEMing so rockon
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Aug 31, 2015 01:09
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just route every iot transaction, despite everything being perfectly capable of speaking locally, out through a third party website that may or may not be up that day
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Aug 31, 2015 01:28
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JawnV6 posted:just route every iot transaction, despite everything being perfectly capable of speaking locally, out through a third party website that may or may not be up that day wonder how many companies out there are making tiny cell radios for IoT devices so they don't even have to get on a local network, and so they have an excuse to do monthly billing
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Aug 31, 2015 01:39
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what's great is there are a few dozen/hundred companies enabling exactly that billing themselves as "M2M" that are completely under the radar from anyone for whom "disruption" is already passe
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Aug 31, 2015 02:29
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new job status: is good. in the two months I've been there I got to - take an image sensor processor that shipped in a lot of cellphones and make altera FPGA IP out of it, including encryption/time limited evaluation - integrate that into a reference design for alteras OpenCL thing in a cyclone SoC board, which is tricky since it only has one DDR3 interface and like 7 FPGA modules access that at the same time - help a bit with the bringup of an arria 10 board (transceivers for 40 Gbit Ethernet, DDR3 controllers). those engineering samples guzzle a lot of amperes holy poo poo now I get to take an ASIC GigE MAC with all kinds of QoS, that ISP and a MJPEG encoder to make an fpga reference design for some emerging automotive ethernet standard.
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Aug 31, 2015 21:16
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photon phuckaround update: it works after i reset their app, had to set up via usb. their little
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Sep 2, 2015 14:42
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does anyone make ludicrously simple zigbee socs? there are plenty of modules that would work but we'd need something smaller
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Sep 11, 2015 17:42
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TI has a zigbee-specific part in the CC2xxx line and I thought nordic had SW images for the nRF51822 for zigbee but i don't care enough to look it up
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Sep 11, 2015 17:58
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oh god the CC2400 radio is poo poo and the MRF24J40 is also poo poo (but i mean it's Microchip and if you use any of their digital parts in this day and age you deserve all the suffering you are about to experience) apparently Atmel has some pretty good digital radio ICs that can do 802.15.4? e: Atmel's various SAM3 chips Cortex uCs are pretty nice too so it seems like you could do a lot worse than Atmel in general. That said their poo poo does tend to be a bit on the pricey side. Sapozhnik fucked around with this message at 18:08 on Sep 11, 2015 |
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Sep 11, 2015 18:06
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price is no object
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Sep 11, 2015 19:39
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oh then tell broadcom you're going to ship 10 million units and throw 9.9million away
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Sep 11, 2015 20:29
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oh not THAT deeply into "no object" just like a thing that's another $100/unit on the bom is utterly irrelevant. not like we can buy ten million and shelve all but 5
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Sep 11, 2015 20:34
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 thought this was a proper janitoring thread with all the attention to precision that implied
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Sep 11, 2015 20:35
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im working with an atmel design right now and they're Extremely Needs Suiting
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Sep 11, 2015 20:36
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