New development release

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pa3gsb

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Sep 11, 2021, 9:34:00 AM9/11/21
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Hi All,

I have a new development release available:


This release contains the following change:

- use 8 bits for RX stream iso of 4 bits.  

- use SPI for TX iso  of 4 bits

Please give it a try. And let me know if it working for you?

Have fun.

73 Johan
PA3GSB


 

Rick Koch

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Sep 15, 2021, 2:10:05 PM9/15/21
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Hi Johan,

I tried your new dev release. Install went smooth but I think I am seeing aliasing in dev where this doesn't happen in the stable release.
Plus the same iq data is on RX2.

Is there something I need to do to prepare for the 8-bit -vs- 4-bit rx data transfer?

BTW, what do you think will be the gain of the 8 -vs- 4 bit, 2x RX @ 384k?

rb_dev.png
rb_stable.png

-Rick / N1GP

Ramakrishnan Muthukrishnan

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Sep 22, 2021, 2:07:55 PM9/22/21
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Hello Johan,

Looks like the CWL and CWR pin assignments for the PiHPSDR GPIO pins changed in this gateware release (73.2) - commit c175c98c31bf3542e37d130de5c8367656728928 ?

Earlier it was Pin 13 and Pin 39, now it is 113 and 42, which means, the PiHPSDR CW configuration described in this page <https://github.com/pa3gsb/Radioberry-2.x/wiki/piHPSDR-running-CW-mode> is no longer valid. Is that right?

From commit c175c98c on Gateware repo:

-#//BCM13
-set_location_assignment PIN_13 -to pi_cwl
-#//BCM23
-set_location_assignment PIN_39 -to pi_cwr
+#//BCM17
+set_location_assignment PIN_113 -to pi_cwl
+#//BCM21
+set_location_assignment PIN_42 -to pi_cwr

Earlier it was wiring pi pin 23, wiring pi pin 4. Now it is wiring pi pin 0 and wiring pi pin 29. This needs to be changed in the PiHPSDR for CW configurations, is this correct?

73
Ram VU3RDD
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Yado-san

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Sep 23, 2021, 11:26:47 AM9/23/21
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Hi Johan, Ram, Rick,

Thanks info!
I've confirmed that the built-in keyer works with the following pin changes.

 piHPSDR (build 2020-10-12)
    Configure GPIO/CW
    CWL GPIO  4  to  0    <-  WiringPi# not BCM#
    CWR GPIO 23 to 29

 *piHPSDR (build 2021-08-20) is NG.
   I tried to change the following 74,75 lines in gpio.c of pihpsdr. 
   but it didn't work. (can't receive either)

   /tmp/pihpsdr/gpio.c
     70 // Broadcom pins #9, 10, 11 are not used
     71 // by Controller1 and Controller2_V1
     72 // (and keep #2,3 reserved for I2C extensions)
     73 //
     74 int CWL_BUTTON=17;   //  9
     75 int CWR_BUTTON=21;   // 11

- GW 73.2 -
 The received spectrum is also symmetrical.  <- Attached.

Tnx
Yado-san
jg1twp

2021年9月23日木曜日 3:07:55 UTC+9 r...@rkrishnan.org:
gw73.2_rx.png
radioberry_rpi_pin_cw.png

Radioberry

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Sep 24, 2021, 8:49:47 AM9/24/21
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Hi All,

I have updated the beta release.

Only tested in simulation... can you guys give it a try?


pihpsdr pins are changed...need to check later.

Have fun.

73 Johan
PA3GSB


Op donderdag 23 september 2021 om 17:26:47 UTC+2 schreef Yado-san:

Paulh002

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Sep 24, 2021, 9:04:59 AM9/24/21
to Radioberry
sure

Op vr 24 sep. 2021 om 14:49 schreef Radioberry <radio...@googlegroups.com>:

Yado-san

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Sep 24, 2021, 11:22:39 PM9/24/21
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It's fixed!
RX,TX both OK. (Many WW RTTY stations today)

Tnx! 
Yado-san, jg1twp

2021年9月24日金曜日 22:04:59 UTC+9 paul.hol...@gmail.com:
drv0.92_tx_2tone.png
drv0.92_rx_ok.png

Ramakrishnan Muthukrishnan

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Sep 25, 2021, 5:16:06 AM9/25/21
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On 24/09/2021 18:19, Radioberry wrote:
> Hi All,
>
> I have updated the beta release.
>
> Only tested in simulation... can you guys give it a try?

I built everything from source, including the FPGA code.

When tuning broadcast stations (there is a strong MW station nearby at
612Khz). I see the spectrum twice (mirror image on the left, but
attenuated).

73
--
Ram VU3RDD

Ramakrishnan Muthukrishnan

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Sep 25, 2021, 5:30:59 AM9/25/21
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That mirrored spurious spectrum is seen in other bands too (but
attenuated). If you click on a particular signal so that it is at the
center, the spurious signal seen on the spectrum suddenly vanishes. This
is easily observed when running Quisk on a PC with radioberry running on
the network. If you click a seemingly legitimate signal on the right
side and center it (or simply move it in the screen - VFO remains the
same, only the display changes) with the Quisk arrow buttons, the signal
suddenly is not heard. Not sure if I explained it well enough to be
visualized.

I also see a lot of spurious signals on the screen. There is of course
RFI in my neighbourhood, there is a source that repeats every 20khz. I
see this everywhere in the spectrum now. Haven't yet checked whether it
is something that came up today or whether this is seen in this
particular release of code.

73
--
Ram VU3RDD

Yado-san

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Sep 25, 2021, 8:20:19 AM9/25/21
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Hi Ram,

I have replaced the released driver,firmware and gateware first.
 But I've seen a similar mirrored spectrum. and LSB/USB were reversed.

That was my command error. ( I forgot "$sudo modprobe -r radioberry". so i used old rbf.. )

Is the following install-command also wrong?
  Radioberry-2.x/SBC/rpi-4/releases/dev/radioberry_install.sh

Yado-san, jg1twp
2021年9月25日土曜日 18:30:59 UTC+9 r...@rkrishnan.org:
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