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Jack, W8TEE
Yes, we do use floating point in some of the DSP routines. We also lowered the clock to 500mHz to see the impact on core temperature. It does make a difference on core temp, but the speed change is not even noticeable to performance. Whatever you're using now you'll likely throw rocks at it if you switch to a Teensy. Also, the libraries Paul has done for the Teensy family are virtually bulletproof. Jack, W8TEE
On Sunday, May 16, 2021, 12:48:03 PM EDT, jerry@... <jerry@...> wrote:
Wow!? Does this run in the uBITX?? Are you using the floating point unit for the DSP? ? ? ? ? ? ? ? ? - Jerry KF6VB On 2021-05-16 09:33, Jack, W8TEE via groups.io wrote: > _The Teensy is orders of magnitude more powerful than the Nano: _ > > Absolutely correct! Al and I are using it for an SDT were working on > and as you can see here: > > we're doing a lot of stuff, but only using 13.3% of the processor's > power. Not shown is that we're only using 2% of its flash. It is a > beast in sheep's clothing! > > For those who might be interested, the Teensy LC sell for $12 and has > 27 I/O pins, 62K of flash, 8K SRAM and is clock at 48mHz (3x the > Nano). Still, for $20 you can buy the 4.0 which is several orders of > magnitude better than the Nano or the LC. > (). > > Jack, W8TEE > >? On Sunday, May 16, 2021, 12:18:15 PM EDT, jerry@... > <jerry@...> wrote: > > On 2021-05-16 07:33, Evan Hand wrote: >> Arv, >> Here is a link to a company that produces the hardware and software > to >> replace the v6 Raduino with one that is designed for the Teensy 4.1. >> >> > > *** I have it!? Running right now.? The Teensy is orders of magnitude > more powerful than the Nano:? 600MHz clock, a floating point unit( > could > do DSP stuff! ) , 8 megabytes of flash, 1 megabyte of RAM, buckets & > barrels of I/O, and built in Ethernet! > >? I did have to get a new display.? With the original one, the clone > Raduino made unacceptable tuning ticks.? Replacement with a "Hiletgo" > display from > Amazon cured that problem.? So now I have a spare display... More > about > that later. > >? Only thing is... the Teensy is a $30 processor - as opposed to the > nano which costs IIRC $3. > >? ? ? ? ? ? ? ? ? ? ? - Jerry KF6VB > > -- > Jack, W8TEE > > > Links: > ------ > [1] /g/BITX20/message/88407 > [2] /mt/82850528/243852 > [3] /g/BITX20/post > [4] /g/BITX20/editsub/243852 > [5] /g/BITX20/leave/10189903/243852/952924773/xyzzy -- Jack, W8TEE |
