Comments (6)
NT7S
commented on August 18, 2024
Hi Georgi,
Without having that custom ICs that you have it would be difficult to figure out exactly how to solve your problem. However, you can access the raw commands for reading and writing registers to the Si5351, so what you may want to do is first write a sketch to read the contents of each register using the si5351_read() method and then printing them to a serial terminal. Then you should be able to compare to a plain Si5351 or maybe even the reported default values in application note AN619. After that, you can try using si5351_write() to see if you can get it to a state where you can use it as desired. If you are able to find out what needs to be done, let me know and I may be able to incorporate some code into the library.
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lz1zp
commented on August 18, 2024
Hello Jason,
Thanks for your reply and for advise what to do.
First of all, I have to inform you, I have tried to change the Si5351.cpp
file depending to data-sheet page18 and page 19 - NVM storing into RAM
during power-up and following custom configuration via I2C, but it does not
helps me, or just I didn't do the right changes. I have tried to modify
si5351::reset(void)....
Now I involved in this "problem" a friend of mine LZ1NUL, who is a
programing engineer . Will inform you at the end - for "good" or "bad" !
73's
Georgi
2017-02-17 21:01 GMT+02:00 Jason Milldrum <[email protected]>:
… Hi Georgi,
Without having that custom ICs that you have it would be difficult to
figure out exactly how to solve your problem. However, you can access the
raw commands for reading and writing registers to the Si5351, so what you
may want to do is first write a sketch to read the contents of each
register using the si5351_read() method and then printing them to a serial
terminal. Then you should be able to compare to a plain Si5351 or maybe
even the reported default values in application note AN619. After that, you
can try using si5351_write() to see if you can get it to a state where you
can use it as desired. If you are able to find out what needs to be done,
let me know and I may be able to incorporate some code into the library.
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NT7S
commented on August 18, 2024
Suspect the problem may be because the IC has an I2C address other than 0x60. The ability to init the library with alternate I2C addresses has been added to v2.0.2, so I'm going to close this for now unless it can be shown that there is some other issue.
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lz1zp
commented on August 18, 2024
Hello Jason,
It's a shame I can't test it right now - left this IC at my job.....Will
try to do that tomorrow or on Monday.
Thank you in advance, 73's
Georgi
2017-03-17 22:29 GMT+02:00 Jason Milldrum <[email protected]>:
… Suspect the problem may be because the IC has an I2C address other than
0x60. The ability to init the library with alternate I2C addresses has been
added to v2.0.2, so I'm going to close this for now unless it can be shown
that there is some other issue.
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lz1zp
commented on August 18, 2024
Hello Jason,
It's working !! Now I can program factory programmed Si5351, same way as
they are blank. Difference is exactly into the I2C address - 0x60 blank
against 0x62 factory OTP. Now with "Si5351 si5351(0x62);" initialization I
can use the same code....
Tested set_freq() method up to to 225 MHz - working great.
Congratulations about everything you have done on Si5351 library, examples
& etc.Thank you very much for your support.
Best regards,
Georgi LZ1ZP
2017-03-17 22:46 GMT+02:00 Georgi Nestorov <[email protected]>:
… Hello Jason,
It's a shame I can't test it right now - left this IC at my job.....Will
try to do that tomorrow or on Monday.
Thank you in advance, 73's
Georgi
2017-03-17 22:29 GMT+02:00 Jason Milldrum ***@***.***>:
> Suspect the problem may be because the IC has an I2C address other than
> 0x60. The ability to init the library with alternate I2C addresses has been
> added to v2.0.2, so I'm going to close this for now unless it can be shown
> that there is some other issue.
>
> —
> You are receiving this because you authored the thread.
> Reply to this email directly, view it on GitHub
> <#35 (comment)>,
> or mute the thread
> <https://github.com/notifications/unsubscribe-auth/AYguCKUTwHYPOWBkjrgg6mf5g0TxSd4Pks5rmu0ygaJpZM4L-Gu_>
> .
>
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NT7S
commented on August 18, 2024
Excellent, glad I could be of assistance
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Related Issues (20)
- Compatibility HOT 4
- multisynth_calc when r_div applied
- New/alternative method for exact solutions for PLL and multisync ratios HOT 16
- No STOP after si5351.update_status() on NRF52832
- Delay between CLK0 and CLK1 HOT 1
- Nullify spread spectrum
- Jittering output frequency HOT 1
- Chatter, Pop and Clicks HOT 1
- need definition of error messages HOT 3
- reset spread spectrum enable in init code
- Si5351 - ESP8266 WSPR beacon VHF HOT 2
- Repeated definition for output clock divide by 64 in function select_r_div HOT 1
- Repeated definition for output clock divide by 64 in function select_r_div
- Code builds fine for Raspberry Pi Pico, but does not work.... HOT 1
- Wire conflict
- Problems with SI5351B-GM1 only two outputs working and they don't match. HOT 1
- Handle missing external clock, either fallback to internal oscillator or switching off output HOT 2
- VCXO Calibration Issue HOT 2
- Si5351.h and AtTiny3216 HOT 1
- The comments in the title block of SI5351.set_freq(freq, clk) say freq units are Hz. I think they are Hz*100ULL. HOT 2
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