[Freetel-codec2] CONST table size of codec2

Hi I am new to this forum. does anyone know : off the top of their head, what the CONST table size(s) is(are) for codec2 ? has anyone considered a fixed point implementation ? I do understand the fixed point issues, but I wondered has anyone looked at it. regards glen english , VK1XX

Re: [Freetel-codec2] CONST table size of codec2

. The M4 will make fairly good throughput out of junk coding. I use the Rowley Associates toolchain. glen english VK1XX "yes - I do this for a living" Altium- ModelSim, Matlab, Vivado, Rowley. On 21/08/2014 5:44 AM, Br

Re: [Freetel-codec2] STM32.

/peripherals on the one chip. glen english VK1XX yes - I do this for a living Altium- ModelSim, Matlab, Vivado, Rowley. On 21/08/2014 8:12 AM, David Rowe wrote: Hello Glen, Yes I agree re the STM32F4's DSP capability. It doesn't have proper single cycle MACs. However it's fast and cheap and has

Re: [Freetel-codec2] room for speed/memory mods in _kiss_fft_guts.h

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Re: [Freetel-codec2] SM1000 PTT working!

lead , or lead free, David ? get yourself a few 6' rolls of 0.5mm desoldering braid and a JBC iron. On 30/08/2014 6:17 AM, David Rowe wrote: Hello Lists, One step back, few steps -- Slashdot TV. Video for

Re: [Freetel-codec2] calc_sd standard deviation

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Re: [Freetel-codec2] CPU load

From an armchair critic point of view, in my opinion, and I have written alot of modems on a PC, if FreeDV consumes more than a few percent of CPU load of say a 2gig core2duo, then there is something VERY suboptimal about the way it is written. And that is before any use of CPU intrinsics ,

Re: [Freetel-codec2] it is open source

Bruce I know you're are intense person. Granted. But, it is open source... and so you are free to fix it, if you like. That is the wonderful thing about GPL, if you dont like it, you can always fix it. glen VK1XX

Re: [Freetel-codec2] New ARM Cortex-M7

You might have to wait a while though, Silicon is only in preview.. On 26/09/2014 1:13 AM, Chris Testa wrote: Hi all, ARM announced the successor to the Cortex-M4, the Cortex-M7. It has twice the CPU speed (400MHz), a double precision floating point unit, and better caching. It's

Re: [Freetel-codec2] SM1000 schematic comments

://pubads.g.doubleclick.net/gampad/clk?id=154622311iu=/4140/ostg.clktrk ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics

Re: [Freetel-codec2] SM1000 schematic comments

as a ceramic (not sure what material however). Had assumed a tant would be just as good? Cheers, David On 29/09/14 09:00, glen english wrote: I have some schematic comments Critical : 1) Try to avoid connecting input pins of the CPU to Vdd. This is bad ! IE PTT, SELECT, BACK

Re: [Freetel-codec2] Fdmdv sensitivity to phase and amplitude

, should work OK for testing, and although twice too wide a legal signal on our ham bands. Gullik On 10/17/2014 10:38 AM, glen english wrote: Gullick it is even easier than that - FreeDV can/could output on Left and right channels ( 2 x ADC)- the inphase and quadrature components - you dont need

Re: [Freetel-codec2] Fdmdv sensitivity to phase and amplitude

pilot @ 1500 hz, that gives the lowest subcarrier @ 8 * 75 Hz, or 600 hz lower, and the upper 8 +600 hz. So bandwidth is 900 - 2100 Hz (carr center) So, this would work nicely, or is your suggestion to change that? Gullik On 10/17/2014 12:53 PM, glen english wrote: there ya go. David, I

Re: [Freetel-codec2] short-format in freedv_rx()

shorts over unnecessary floats can be useful for saving cache access/ cache misses. I often have compile directives/substitutions for debug in float, release in short. glen On 19/10/2014 10:53 AM, David Rowe wrote: Hello Alfred, Yes I think it's a good idea to add a floating point

Re: [Freetel-codec2] FSK over FM

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Re: [Freetel-codec2] FSK over FM

Thanks, David On 15/12/14 05:44, glen english wrote: Is possible to exploit the FM noise triangle, and use higher QAM densitites at lower frequencies (say 64QAM) and lower qam densities(say QPSK) at higher frequencies. (have done). For audio FMed, it is rather a waste (though simple) to use

Re: [Freetel-codec2] FSK over FM

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Re: [Freetel-codec2] GMSK simulations

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Re: [Freetel-codec2] GMSK simulations

the waveform in use. Cheers, David On 20/12/14 10:04, glen english wrote: Hi David Good analysis. I think though there needs to be some clarifications (having done a few of these in my professional capacity) 1) 10dB over analog FM .?Not so fast ! I reckon 3dB worse at best. You'll need

Re: [Freetel-codec2] GMSK simulations

we couldn't reproduce FM That way using the same tx/rx. I like the name G-star! Cheers, David On 20/12/14 11:13, glen english wrote: Hi David 1- Any FM demodulated process. If it's post demod, there will be the threshold. that's right - no one cares about low CNR 'cause it is unusable

Re: [Freetel-codec2] GMSK simulations

/14 11:13, glen english wrote: Hi David 1- Any FM demodulated process. If it's post demod, there will be the threshold. that's right - no one cares about low CNR 'cause it is unusable. 2 - and you got to do carrier recovery very quickly for burst transmissions. 3- I think good speech quality

Re: [Freetel-codec2] GMSK simulations

and get another dB, by all means knock yourself out, be my guest, but it should also provide basic funtionality on a STM32F4 in a STM $20 Discovery Eval kit. g On 21/12/2014 4:05 PM, Gregory Maxwell wrote: On Sun, Dec 21, 2014 at 12:05 AM, glen english g...@cortexrf.com.au wrote: Easy when

Re: [Freetel-codec2] GMSK simulations

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Re: [Freetel-codec2] GMSK simulations

. http://goparallel.sourceforge.net ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media

Re: [Freetel-codec2] Dual User Antenna Diversity Coding

-- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile : +61 (0)418 975077 -- Dive into the World

Re: [Freetel-codec2] VHF Codec 2

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Re: [Freetel-codec2] VHF Codec 2

want to push your amplifier. The advantage of GSMK is the use of a non linear amplifier, given. g On 6/02/2015 9:46 AM, David Rowe wrote: Thanks Glen - I have replied to your comment on the blog post. Cheers, David On 06/02/15 08:40, glen english wrote: You can't compare apples

Re: [Freetel-codec2] Codec 2 and GMSK over VHF Radio Part 1

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Re: [Freetel-codec2] Fwd: VHF Adjacent Signal Filtering

Perens wrote: On 02/08/2015 05:23 PM, glen english wrote: I did say dBm . Oops. I haven't memorized that uV to dBm table yet. Regarding the frequency control and regulators, we have the DAC/ADC clocks and frequency synthesizers all running off of one oscillator. The computer

Re: [Freetel-codec2] Orlando Hamcation: Algoram HT of the Future Demo, Overview, and Progress Report

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Re: [Freetel-codec2] perils of single frequency repeaters

well, the thing is, the newbies are in the minority, and everyone else is the majority, so ya gotta mount a pretty good technically sound argument that is win win. Yep, there is a cartel on repeater planning pretty much in most developed countries. In VK , also. There is, however, most

Re: [Freetel-codec2] RX chip CMX994

as horizontal polarized omni antennas, are they any good? I've been thinking of building one for testing H-pol. ( http://www.g8seq.com/vhf_antennas.php ) Thanks, Daniel VA7DRM Daniel Mundall On Mon, Feb 16, 2015 at 1:59 AM, glen english g...@cortexrf.com.au mailto:g...@cortexrf.com.au wrote

Re: [Freetel-codec2] RX chip CMX994

Chris , You are right about these integrated PLLs on the single chip receivers , they can be full of noises. The limitation is all that stuff crammed in, but there are always common currents flowing around from other parts of the circuitry that will crosstalk into the oscillator or IF.

Re: [Freetel-codec2] Orlando Hamcation: Algoram HT of the Future Demo, Overview, and Progress Report

a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications

Re: [Freetel-codec2] Orlando Hamcation: Algoram HT of the Future Demo, Overview, and Progress Report

Must be Fusion On 9/02/2015 1:18 PM, Bruce Perens wrote: On 02/08/2015 06:06 PM, glen english wrote: you only need a nice big binary counter for the 1pps input correction , IE perhaps 24 flip flops is nice...and the ability to read this counter from the STM32- the STM32 can do the rest

Re: [Freetel-codec2] Fwd: VHF Adjacent Signal Filtering

hey, I'll reply directly, we are getting a bit off topic. unless the group thinks otherwise On 9/02/2015 3:28 PM, Daniel Mundall wrote: Hi Glen, -- Dive into the World of Parallel Programming. The Go Parallel Website,

Re: [Freetel-codec2] Fwd: VHF Adjacent Signal Filtering

mixed in final amplifiers, etc. Operate in /that./ / /Thanks Bruce On 02/08/2015 08:37 PM, glen english wrote: hey, I'll reply directly, we are getting a bit off topic. unless the group thinks otherwise On 9/02/2015 3:28 PM, Daniel Mundall wrote: Hi Glen

Re: [Freetel-codec2] Fwd: VHF Adjacent Signal Filtering

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Re: [Freetel-codec2] Fwd: VHF Adjacent Signal Filtering

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Re: [Freetel-codec2] Orlando Hamcation: Algoram HT of the Future Demo, Overview, and Progress Report

are going to make it as good as we can for the first run, and then experiment with making it cheaper. Thanks Bruce On 02/08/2015 04:59 PM, glen english wrote: Bruce I'd suggest living with a +/- 2ppm oscillator design and have the modem capable of AFCing and pulling the oscillator against

[Freetel-codec2] RX chip CMX994

) spurs. The integer N PLL will also often have much lower power consumption. regards glen english VK1XX -- Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed

Re: [Freetel-codec2] RX chip CMX994

On Sun, Feb 15, 2015 at 7:09 PM, glen english g...@cortexrf.com.au mailto:g...@cortexrf.com.au wrote: Hi Daniel Cbus/SPI is easy, you dont need a library BUT - but... if you need to ask about what is SPI/Cbus, do I need a lib ? then you do not, in my opinion, have enough

Re: [Freetel-codec2] Freetel-codec2 Digest, Vol 59, Issue 2

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Re: [Freetel-codec2] (no subject)

Hi David hmmm.half an STM32 F407 is about 110 D-MIPS I'd be telling people... as a guide... about 110 Drystone-MIPS but your mileage may vary since it isn't like a real-DSP which just quotes FIRtaps/uS g On 14/03/2015 9:14 PM, David Rowe wrote: Hi Adriana,

Re: [Freetel-codec2] DSP 64x

I dunno The way the alorgithm is written, I would think it is a better fit on a general purpose processor like the Cortex M4+FPU. It's like not it is DSP specific doing a load of large FIRs and IIRs and adaptive equalisers at race-pace. I looked at how the algorithm would execute on the

Re: [Freetel-codec2] Simple SDR for VHF FreeDV

My 5 cents I agree with Helmut's analysis. Additionally, with such a low IIP3, the radio will be absolutely riddled with intermods and essentially unusable in a city. NE602 is good for a cordless telephone, or a well protected 2nd IF mixer function. By modern standards they are a low

[Freetel-codec2] and...Re: Simple SDR for VHF FreeDV

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Re: [Freetel-codec2] Simple SDR for VHF FreeDV

the conversation now. http://goparallel.sourceforge.net/ ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF

[Freetel-codec2] soft-rock design

option is a few more coupled LC sections, they seem to offer about 20dB extra attn per section. Not sure if there is a more elegant way. Cheers, David On 26/02/15 08:55, glen english wrote: and.. Using the ADC in the STM32 undersampling at 10.5 meg signal at 2 Msps. Are you sure the STM

Re: [Freetel-codec2] soft-rock design

/02/15 12:26, glen english wrote: David take a look at the soft-rock designs for quadrature demods. these are pretty good performers.. the VHF particularly this is a CLEVER design and I have built half a dozen... http://www.wb5rvz.com/sdr/ensemble_rx_ii_vhf/ and this one http

[Freetel-codec2] Si5351

outputs. regards On 26/02/2015 11:37 AM, David Rowe wrote: Thanks Glen :-) Yep, the NE602 has to go. I'm convinced IP3 is king, ahead of MDS. What sort of mixer would you suggest? Any thoughts on the suitability of the Si5351? Cheers, David On 26/02/15 08:50, glen english wrote: My 5

Re: [Freetel-codec2] Simple SDR for VHF FreeDV

other options. I just got my dev boards for the CMX994 and 971 today so I'll be running some test with them over the next few days. Daniel Daniel Mundall On Wed, Feb 25, 2015 at 2:20 PM, glen english g...@cortexrf.com.au mailto:g...@cortexrf.com.au wrote: My 5 cents I agree

Re: [Freetel-codec2] Codec 2.0 Implementation on STM32F4 Discovery Board

Hi Sidrah There is plenty of this on the web, but it will be a steep learning curve- be prepared for a couple of weeks solid work. You'll need to understand the linux sound subsystems, maybe start with the Alsa site. My suggestion : there is plenty of source code for applications that use the

Re: [Freetel-codec2] VHF Frontend for VHF experimentation

Hi Brady A 1 minute look at it 1) I think you will striggle to get sufficient TX/RX isolation with that style diode switch- ideally you should reverse bias the PIN diodes when you want to shut down that path . IE have say 5V on the cathodes, and switch 0 or 10V onto the wanted / wanted

Re: [Freetel-codec2] VHF Frontend for SDR !!!!!

Hi Brady How much gain you need is pretty easily calculated from calculating your SDR noise figure, and then knowing your desired noise figure. Add a few dB for something you didnt take into account ! I think you can just relax that

Re: [Freetel-codec2] VHF Frontend for VHF experimentation

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Re: [Freetel-codec2] VHF Frontend for SDR !!!!!

Bradly You must define what are the enemies of the receiver. A zero frequency SDR receiver has no IF images. but it has alias responses, so the reality is that the baseband filters (I and Q) should be 90dB down outside the passband and at the aliases. My experience is that this is where

[Freetel-codec2] SM1000 comments

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Re: [Freetel-codec2] options wanted-codec2 stmf4 code optimization question

list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile

Re: [Freetel-codec2] options wanted-codec2 stmf4 code optimization question

it due to poor performance. Thanks Bruce On Tue, Jul 28, 2015 at 4:31 PM, glen english g...@cortexrf.com.au wrote: thanks for the info. I would have thought RAM would have been no issue- coefficients stored in the FLASH (that's big) , and good packing, use of the RAM ( as the M4

Re: [Freetel-codec2] build questions

e one else - David On 03/08/15 08:14, glen english wrote: Hello All Time to ramp myself up on all this . I have some basic build

Re: [Freetel-codec2] compiling codec2 code

/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile : +61 (0)418 975077

[Freetel-codec2] sm1000

Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile : +61 (0)418 975077

Re: [Freetel-codec2] options wanted-codec2 stmf4 code optimization question

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Re: [Freetel-codec2] options wanted-codec2 stmf4 code optimization question

Bruce- I admit in the Blackfin I usually turn the cache right off for it to be deterministic. On 29/07/2015 2:38 PM, Bruce Perens wrote: For cache optimization you have to consider the line size, the cache line hashing scheme, and how many lines match the same hash. The classic example is

Re: [Freetel-codec2] Porting Codec2-dev code in Keil (Windows)

@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile : +61 (0)418 975077

Re: [Freetel-codec2] build questions

were out of date so tweaked the README a bit ("svn up" to get the latest README). They build as part of codec2-dev. I'll leave (2) to some one else - David On 03/0

[Freetel-codec2] options wanted-codec2 stmf4 code optimization question

Hi All I am considering retargeting codec2 / sm1000 etc for another micro . a '21477. and this will include a rather strong modem. (or I might stick with stm32F7) In opinion, just how much of the STMF4 code for codec2 is hard optimized for the stm? Without spending alot of time looking at it,

Re: [Freetel-codec2] options wanted-codec2 stmf4 code optimization question

capability that sleep would not help, you'd have to fix that part. On Mon, Jul 27, 2015 at 4:54 PM, glen english g...@cortexrf.com.au wrote: Hi All I am considering retargeting codec2 / sm1000 etc for another micro . a '21477. and this will include a rather strong modem. (or I might stick

Re: [Freetel-codec2] Uploading a custom code for STM32 on SM1000 in Linux or Windows

-- ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075

Re: [Freetel-codec2] Uploading a custom code for STM32 on SM1000 in Linux or Windows

/NRTC wrote: Dear Glen English, Actually I am heading to a prototype of secure modem. For the encryption of voice, I will use AES-256. But first I have to get familiar with SM1000. Can you please guide me with a simple led blinking program and its uploading procedure

Re: [Freetel-codec2] Setting SM1000 transmit level

I'd expect most ham stuff will produce lots of IPM when worked hard. The IPM might be your limit on the IC7200 Has anyone measured the IPM ? oh that's INCIDENTAL PHASE MODULATION. there is usually an (unwanted) relationship with amplifiers between amplitude and phase. IE crosstalk from AM PM.

Re: [Freetel-codec2] SM1000 and the FreeDV 700B mode

On the large micros like STMF4, for fast development/ compile run cycles I run my entire executable out of RAM only transitioning to flash when I have to disconnect the debugger. Optimized DSP code from the CMSDSP libraries (which I re compile) certainly takes a performance hit, but not

Re: [Freetel-codec2] gain before ADC

exists I'm happy to dig that up. > > Thanks, > > David > > -- > ___ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > -

[Freetel-codec2] release/compatibility matrix -Free DV

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Re: [Freetel-codec2] and windows 10 64bit

://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT 2602, Australia. au mobile : +61 (0)418 975077

Re: [Freetel-codec2] Smoothing the digital cliff (4+4 QAM bitrate peeling idea)

ity of FreeDV, this is a high random doppler profile and will likely spur another round of development to cope with it. regards glen english VK1XX On 7/09/2015 2:01 AM, Tomas Härdin wrote: Hi (I tried sending this a few days

Re: [Freetel-codec2] 700B mode seems to use much more cpu cycles in rx than the 1600mode

Nice work Alex For a lump of code to be using THAT much CPU, and these CPUs are very capable something must be terribly wrong. maybe turn some of the optimizations off and see what happens. Can you break it down to computation effort (something stuck in a loop, loop variable getting trashed

Re: [Freetel-codec2] SM1000 phantom power

how about passive PoE connection style ? (IE same pairs, use of transformers etc) at least that is a standard. On 10/09/2015 9:53 AM, David Rowe wrote: > Hello list, > > A few people have modified their SM1000 to draw power from their radio > via the RJ45 connector. > > Rick and I have

Re: [Freetel-codec2] Silly question regarding SM-1000 sample rate

=/4140 ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF

Re: [Freetel-codec2] Beginnings of virtual EEPROM support

is done by the hardware CRC module) > - 8-bit ROM ID > - 8-bit block index > - 8-bit block size > - 8-bits reserved. > > When a write is performed, the data is split into 256-8=248 byte blocks, > and written to available blocks across the 3 sectors. When a block is > to be c

Re: [Freetel-codec2] Beginnings of virtual EEPROM support

yeah but don't believe that On 27/09/2015 6:35 AM, David Rowe wrote: > The data sheet has 10k cycles as the endurance, with some flash > parameters measured after 100k cycles. 10 years retention at 105C, 30 > at 55C. > > - David > > On 26/09/15 21:55, glen english wrote

Re: [Freetel-codec2] SM1000: Persistent settings now working

one some bug fixes: > http://stuartl.longlandclan.id.au/freedv/sm1000/sm1000-r2402.bin > > This actually has working CRC32 calculation, and I haven't heard the > hanging-note bug that was an issue in the previous release. -- - Glen English RF Communications and Electronics Engineer CORTEX R

Re: [Freetel-codec2] SM1000: Persistent settings now working

the chip was still > available after 10 years. > > -- > ___ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lis

Re: [Freetel-codec2] Tuning Aid 700B mode

Helmut How well does your power meter respond to high peak to average signals, IE faithfully measuring peak and PEP ? I've been involved in this with DRM and DVB. something to watch, anyway. Maybe use a TRUPWR (R) device like the AD8362 to measure it. 73 On 23/09/2015 5:58 AM, wully wrote: >

Re: [Freetel-codec2] Tuning Aid 700B mode

-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 -- - Glen English RF Communications and Electronics Engineer CORTEX RF & Pacific Media Technologies Pty Ltd ABN 40 075 532 008 PO Box 5231 Lyneham ACT

Re: [Freetel-codec2] Silly question regarding SM-1000 sample rate

B down, and this is communications quality speech so a little > aliasing is lost in the codec artefacts. > > On the radios interface side the audio is band limited by the radio's > frequency response, ie the xtal filter BW. > > - David > > On 18/09/15 15:43, glen english wrote: >

Re: [Freetel-codec2] Debugging the SM1000. [was Re: Dumb SM1000 SWD question, where's pin 1?]

nice one STuart good tutorial On 12/12/2015 6:32 PM, Stuart Longland wrote: > On 12/12/15 16:46, Stuart Longland wrote: >> On 12/12/15 16:38, Steve wrote: looking at that photo, it's the one on th --

Re: [Freetel-codec2] CHIP

I reckon that is pretty good. As David says, not much compared to what it is connected to. I imagine as long as it is not a thermal issue, there is no problem. Any scope to drop the the power supply it runs from? As the core has the internal series pass 1.2V regulator. These days I run my STM32

Re: [Freetel-codec2] Codec+ Crypto Firmware for SM1000

by step. It will take time and patience. What is your end use application ? Why encryption ? regards glen english On 25/11/2015 2:54 PM, Nouman Khalid/A-XEN R/NRTC wrote: > Hello List, > I want to embed AES-128 in the DV mode of SM1000 for half duplex > mode. For that

Re: [Freetel-codec2] SM1000 and the FreeDV 700B mode

element 14 have STLINKV2s for $30 On 22/11/2015 7:07 PM, Stuart Longland wrote: > On 22/11/15 08:17, glen english wrote: >> Stuart, SM1000 has the SWD pins (2 signals) exposed, doesn't it ? >> >> use that. > I would, but I don't have anything (yet) that will plug into S

Re: [Freetel-codec2] on fixed point decoders

agreed Bruce On fixed pt, for those wanting to do a conversion - one thing to keep in mind precision. 32 bit floats only have approx 7 decimal digit precision where as a 32 bit int (long)  has approx 10 decimal digits. so you are slightly

Re: [Freetel-codec2] CODEC problem

omadarshi On Sun, Jun 12, 2016 at 2:54 PM, glen english <g...@cortexrf.com.au> wrote: Nice one Jereon. Anomadarshi, where is your hardware bottleneck- why the sample rate

Re: [Freetel-codec2] CODEC problem

of an AGC ahead of codec2 might improve results. regards glen english vk1xx On 12/06/2016 7:08 PM, Anomadarshi Barua Shuvro wrote: Hi, I have been using this codec

Re: [Freetel-codec2] fixed point decoder?

Jerome You could certainly DO a fixed point port but the amount of work compared to using a floating point processor makes it a questionable idea. floating point processors now, except in the very lowest end of the market, do not generate a financial and power cost penalty like they used to

Re: [Freetel-codec2] Encoding decoding time TIVA

to benefit just > one specific platform. > > Better to optimise the vanilla C, or just use a faster chip - MIPs are > cheap these days. > > Cheers, > > David > > On 17/06/16 07:19, glen english wrote: >> Max, are you using the CMSIS optimized DSP libraries

Re: [Freetel-codec2] Encoding decoding time TIVA

2016-06-17 10:04 GMT+02:00 Maxime Guyon <gmax...@gmail.com>: Hello, @Steve: Thank you for the hint to define NDEBUG, I tested it but timing remain approximately the same.

Re: [Freetel-codec2] Encoding decoding time TIVA

sure that my target should be capable of encode and decode real time... Maybe your target is loaded at more that 50%? Regards, Max. 2016-06-17 13:27 GMT+02:0

Re: [Freetel-codec2] Encoding decoding time TIVA

RRR I usually find O3 fractionally faster but alot of things break that I dont expect (bad programming habits?). they don't break in O2. some unexpected assumptions are made... On 18/06/2016 1:25 PM, Steve wrote: > Another algorithm that seems to suck a lot of CPU is >

Re: [Freetel-codec2] Another item for the PCB TO-DO List: nJRST pin

_____ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > -- - Glen English R

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