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Topic: STM32H7 series revision: Beware of the changes! (Read 11591 times)
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DL8EBD
positron
Urgestein
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Posts: 1926
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Re:STM32H7 Rev. "V" ja/nein?
« Reply #15 on: 18. July 2019, 15:22:40 »
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yes Co, you're rigth....
...too bad 
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| « Last Edit: 18. July 2019, 15:24:13 by DL8EBD » |
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bitte keine technische Fragen oder Diskussionen via PN, dafür ist das Forum da.
vy73
Thomas
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DG8YGW
positron
schon länger dabei
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Posts: 93
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Re:STM32H7 series revision: Beware of the changes!
« Reply #16 on: 19. July 2019, 19:51:11 »
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Hi Co and Thomas,
73 Ralf
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Ralf, DG8YGW
JO31LM DOK L03
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DB4PLE
positron
Urgestein
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Posts: 1278
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Re:STM32H7 series revision: Beware of the changes!
« Reply #17 on: 19. July 2019, 20:06:30 »
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Hi,
using a slight modification to Dave's motto from the EEV blog: "There is only one way to find out, take it apart solder it in its place".
I looked through the difference between the revisions, and the only ones relevant for us are
- the divider of the ADC provides now half the clock to the ADC but we are not nearly close to the max frequency when sampling, so I guess, not a problem.
- Flash write sequence changed: This could apply to us, but that would only affect the bootloaders ability to flash firmware and the flash config storage. If this is the case, we can easily fix that in software, but you would in any case have a working board with only minor fixable problems.
73
Danilo
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DL8EBD
positron
Urgestein
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Posts: 1926
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Re:STM32H743ZIT6U 480MHz momentan am Lager
« Reply #18 on: 12. September 2019, 05:24:18 »
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Mouser hatte eben 14 Stück von der 480MHZ Version am Lager....
ich habe nicht lange überlegt und gleich welche mitbestellt da ohnehin die Teile für zwei Stück I40 UIs auf dem Plan standen...
https://www.mouser.de/ProductDetail/511-STM32H743ZIT6U
ich springe dann mal ins kalte Wasser und probiere die neue CPU aus 
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| « Last Edit: 12. September 2019, 05:26:46 by DL8EBD » |
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bitte keine technische Fragen oder Diskussionen via PN, dafür ist das Forum da.
vy73
Thomas
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DL8EBD
positron
Urgestein
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Posts: 1926
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Re:STM32H743ZIT6U 480MHz momentan am Lager
« Reply #20 on: 12. September 2019, 14:41:53 »
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ich bin schon sehr gespannt Andreas, zumal der mit € 12,- netto nicht allzu teuer ist....
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| « Last Edit: 12. September 2019, 17:06:57 by DL8EBD » |
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bitte keine technische Fragen oder Diskussionen via PN, dafür ist das Forum da.
vy73
Thomas
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SP3OSJ
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Re:STM32H7 series revision: Beware of the changes!
« Reply #21 on: 12. September 2019, 22:20:30 »
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Hi
Does replacing the "F" with "H" processor make any changes to the TRX? Does TRX work better?
I have both processors and I don't see any difference. I have old software:
https://www.youtube.com/watch?v=BM6P32a_aHU
Danke
Artur
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DB4PLE
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Urgestein
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Posts: 1278
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Re:STM32H7 series revision: Beware of the changes!
« Reply #22 on: 13. September 2019, 06:58:40 »
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Hi Artur,
Does replacing the "F" with "H" processor make any changes to the TRX? Does TRX work better?
I have both processors and I don't see any difference. I have old software:
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At the moment, the TRX with a H7 will not work better or feel any different, but even the "old" H7 is about twice as fast as the F7.
So in terms of digital signal processing power and/or user interface, we have way more cycles available. E.g running multiple RX channels should be much easier with the H7.
And it has about the same price as an F7. So F7 is "dead" for the UHSDR. Long live the H7.
73
Danilo
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| « Last Edit: 13. September 2019, 07:54:36 by DB4PLE » |
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DL8EBD
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Urgestein
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Posts: 1926
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Re:STM32H7 series revision: Beware of the changes!
« Reply #24 on: 13. September 2019, 07:39:28 »
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WOW!
dann aber bitte mit einem höher auflösenden Display
Der RA8875 Controller scheint ja bereits in der Firmware berücksichtigt zu werden....einzig das Layout für die gesteigerte Auflösung gibt es noch nicht.
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bitte keine technische Fragen oder Diskussionen via PN, dafür ist das Forum da.
vy73
Thomas
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SP9BSL
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alter Hase
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Posts: 443
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Re:STM32H7 series revision: Beware of the changes!
« Reply #26 on: 13. September 2019, 10:23:51 »
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I hope I can reach data transfer rate to MCU for having 1500KHz spectrum width (exactly: 1536KHz). Only possible with more RAM and MCU power.
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Hi,
Hmmm,my goal is to use FFT IP core inside FPGA or second receiver to sweep across the entire band and then join few low point FFT's. So far I have 1st working with used ~25% resources of Intel's Cyclone IV EP4CE15. We must figure out another type of load to make use of H7 horse power  .
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73 Slawek
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DL8EBD
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Urgestein
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Posts: 1926
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Re:STM32H7 series revision: Beware of the changes!
« Reply #27 on: 13. September 2019, 10:42:55 »
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Slawek, Retina Display
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bitte keine technische Fragen oder Diskussionen via PN, dafür ist das Forum da.
vy73
Thomas
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SP9BSL
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alter Hase
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Posts: 443
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Re:STM32H7 series revision: Beware of the changes!
« Reply #28 on: 13. September 2019, 11:01:51 »
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Slawek, Retina Display
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Partialy true if you think of bigger resolution. Currently we have available 800x480 and the dual spectrum display will use this resolution for sure. Beside the dual spectrum display we have some more things to display like Attenuator/amplifier settings or dual frequency display for full duplex work for example with Oscar-100, bigger freq fonts, some icons etc... All of this won't fit into 480x320 resolution and it doesn't matter with 3.5" or 4".
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73 Slawek
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SP3OSJ
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Re:STM32H7 series revision: Beware of the changes!
« Reply #29 on: 13. September 2019, 17:18:24 »
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Hi
I will show you something.
This is the Chinese motherboard for the Chinese TRX
There is only one old prosesor the STM32F405 (100pin) No more!
There is a 5351 generator, there is an external memory.
This TRX has no IC AC/DC converters!!!
Works as DDC/DUC with frequency conversion IF=256KHz
This TRX has:
TX recorder microphone
RX recorder speaker
Has a 130kHz spectrum
Has a 130kHz waterfall
Has band 160, ... 20,6,4,2m - SSB/FM/AM/CW
and FM broadcting 88-108MHz
This processor works 100%
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« Last Edit: 13. September 2019, 17:19:30 by SP3OSJ » |
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