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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (18 topics).
18 topics · 85 messages
Filtered by: #readback ✕
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How to properly use DC Input Entry
Hi, I want to use DC Input Entry to index ISF. So, if I'm using 1467 - 32bit, according to AD Wiki I need to use integer value for ISF: 32.0 But before that I wanted to debug input value with a Readba
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ReadBack Parameter Issue
Hello, I am trying to use "ReadBack Parameter" block in my ADAU1787 in order to obtain the FIR coefficients of a NLMS block. These coefficients will be used later on a FIR filter to compensate the sec
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Tone control implementation
I, too, am trying to implement a simple tone control. The strategy described here, using indexed filters, seems very straightforward, but it hasn't worked in my hands. As best I can tell, I have the c
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Fixed register address at pre-compile stage possible?
Hi, I'm wondering if it is possible to "set" a register address at pre-compile stage. E.g.; When I compile my SigmaStudio program for an ADAU1452, compiler sets the address of a readback register to 0
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Parameter readback and update not working?
Hello, I am having an issue while working with mij EVAL-ADAU1787Z board in SigmaStudio. I am trying to change the gain value of a gain block using a Parameter Update block. Something that looks like i
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Multiplication doesn't work
Hi, I just read the article about number formats in Sigma DSP and also about the readback function, which can only display a 24.0 number format and thus truncates the last 4 bits of the input value. S
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[Bug Report] SigmaStudio / Eval ADAU1787Z incorrect parameter names; Real Time Parameter read values and addresses
See the attached project file. I used the Sigma NLMS block to system identify a known, 45 tap (only the first 40 taps are non-zero) FIR so I can see where the coefficients end up in the registers. See
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Sigma Studio - how to add Readbacks?
Hi there simple question - where do i find the Readback blocks in Sigma Studio? I want to view the value of ADC inputs but I cannot find Readback blocks anywhere in the left hand menu tree? I am using
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ADAU1452 eval' board - AUX ADC ReadBack Values
Hi there, I've setup a simple SigmaStudio project to attempt to readback the values returned from the potentiometers on the EVAL-ADAU1452REVBZ, connected to AUX ADC 0 and 1. I want to understand the r
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ADAU1701 Low Instruction Level Detection Readback
Hi! I need to read back some signal levels to the microcontroller in my current project via I²C. This works as expected with an "Envelope Peak" block together with a readback cell. These two cell
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DSP readback addressing
Hello, is there any way to force sigmastudio to produce contiguous ReadBack addresses in order to read N parameters at once in burst mode ? This is an excerpt of what i get now out of sigmastudio : #d
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ADAU1701: Readback of MS Signal Envelope
Hi I am using an ADAU1701 to implement a four channel audio mixer. The first two input channels are routed to the DSP's ADC0 & ADC1, the second two input channels are routed to the DSP's SDATA_IN0 via
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Different reading STM32F4 + adau1452 SPI of DSP readback block
hello guys, I am doing a project with adau1452 and STM32F407VGTX-Keil using SPI comm. I want to use these chips to make audio enhancement processing such as automatic gain controller (AGC), Feedback d
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ADAU1452 T-Connection, Readback, Level Detector
Hello guys, I have noticed a strange behavior of the T-Connection in combination with DSP readback within my ADAU1452 project. My intension was to read the current signal amplitude of multiple channel
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ADAU17xx Sigma DSP Readback cell inconsistent read with MicroController
Hi, I can read a fixed DC source value (positive and negative) with my MicroController by using a DSP readback block. I can also read a sinus output in the MicroController using the DSP readback. BUT,
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ADAU1445 safeload readback fails
Hello to all, i searched all your threads about my problem but find nothing to my failure. In my system i used a adau1445 for audio signals. I load the coefficients for the biquad filters with the saf
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ADAU1701 Aux ADC Readback
Hi, I've got a system running in which a micro polls a readback cell in Sigma to read back the current level read on the Aux ADC. This is from an external microphone pre-amp and mic. I'm currently gen
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why readback only in 24.0 format?
Why is it not possible to readback values in 28.0 format? I think this would be very useful!!! For example I would like to monitor the value that is fed to a index selected mux. As far as I can see th