EngineerZone Forum
Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (971 topics).
971 topics · 3273 messages
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ADUCM320i 无法通过IIC下载
Hi, 现在项目中用到了ADUCM320i,但是用I2C下载程序下载的时候，无法从0x04读到MCU ID。但是同样的IIC下载程序下载ADUC7020是没有问题的。 请问用IIC对M320I下载时，有哪些注意事项？ 目前原理图中BM引脚是直接拉低了。 download iic aducm320i
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Can ADAU1761 be easily replaced by ADAU1701?
I've designed and tested a device using ADAU1761 but it seems to be out of stock. The ADAU1701 is available. I'm using it as simple stereo DAC/ADC combo, no DSP features required, not using PLL and ge
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ADAU1463/67 I2S Slave Connection instead of SDATAIO
Hey, quick question: is it necessary to also connect the pins for LRCLK & BLCK in hardware to an input if the SDATA_Ports are used as slaves in another clock domain? For example, im using an AD1937 co
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ADC to DSP I/F
We intend to use AD7768 8-channel converter and ADSP21563 in our forthcoming project. Our need is to simultaneously transfer the 8-channel data into the processor. Please advise on the possibility and
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ADAU1442 volume control + mute feature of I2S inputs
Hello, I would like to use the ADAU1442 parts for 2 of my sound cards. I need to mux more than 4 various digital signals where the ADAU1442 seems to be a best candidate. I need to make a volume contro
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Selection of dsp or mcu for laser pulse signal detection
Hi, I think I should use DSP or mixed signal processor (IC) for the needs mentioned below. I'm going to ask may be simple, but I'm inexperienced in choosing materials and processors. Is there a produc
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remaining program space in ADAU1761 using SigmaStudio
I have a project using 3 ADAU1761. I wanted to add some functions to my existing schematics I have a couple questions 1) How do I know how much programming space I have left in each device? Can I see
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BF707 EZ-KIT SPI Flash read/write in DMA mode
Hi, Is it possible to do the Flash read/write in BF707 EZ-KIT using SPI DMA mode? I had tried combining the SPI Flash readback code and SPI DMA mode sample code available in CCES. But couldn't access
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ADAU1467 16ch I²S output
Hello, I would like to output 16 channels audio output from ADAU1467 to a DAC via I²S, using 8 times standard 2 channel I²S protocol. Can someone help with the right hardware configuration s
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Crosscore embedded studio post build
I have made a small program that adds a string to the loader file, AddID.exe. It opens the loaderfile, add a hex line, and stores the modified data in a new file. I would like to run this script as a
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Simultaneous mp3 decoding, processing and TDM transmitting
Hello dear engineers. I'm looking for optimal solution for expandable audio system project. Could some one please direct me to coresponding type of proceesors (SHARC or BLACKFIN) wich can handle readi
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Active Noise Cancellation/Reduction using two microphones
Good day. I'm currently working on a project related to active noise cancellation (ANC) which uses two microphones, where the first is the reference input and the second is the error input (I use the
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ADAU1452 RMS envelope with 100dB dynamic
Hello, I am using an ADAU1452 for a project and I need to perform an RMS envelope detection with a dynamic range of 100dB. I tried using the RMEnv algorithm with a square root behind. It works well bu
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*** issues with Dayton programmer DSPB-ICP1 ... OR ... Sigma Studio? ***
1.) How can you have a comm fail when the usb icon is green as the picture shows, makes no sense? 2.) This programming board has 3 led's to show when its on but they are consistently going from bright
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Add SPI communication in init code
I am currently using 2156x series chips. During the boot process, I configured the DSP to boot from SPI2 slave mode, and turned on the CRC32 check switch. In the Init code, I added the event handling
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ADAU1787 - I2C allow single address, multiple data word in the protocol
I am writing code to read the data files generated by SigmaStudio and writing to the ADAU1787 over I2C. NumBytes_IC_1_SIGMA.dat and TxBuffer_IC_1_SIGMA.dat. In TxBuffer_IC_1_SIGMA.dat, where I see: 0x
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Differential pulse voltammetry on AD5941
Hello forum, I'm working on a simple potentiostat utilizing the AD5941 chip. I have searched and used the official github repository with code examples for this chip. Im using the Nucleo-F411RE board
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DClock min for AD7134
How is DCLK min being calculated here? Where is the 8 coming from? When I put those numbers in I get 56.848 Mbps. Thank you for any clarification. Simultaneous Sampling A/D Converters AD7134 Precision
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The condition of DAI_PBEN register (About ADSP-21569)
Hello. Could you tell me the condition of DAI_PBEN register? Which is correct high or low when I want to set the terminal as Hi-z ( for use as input). And coule you tell in which document described de
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About SPI0 communication: when EMISO of SPI_CTL registers is disabled, does output terminal is set as "Hi-z"? (ADSP-21569)
Hello, Could you tell me below, About SPI0 communication: when EMISO of SPI_CTL registers is disabled, does output terminal is set as "Hi-z"? (DSP device is ADSP-21569) I would to avoid collision betw
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AD5941 serial download.
Hi, I'm trying to design a circuit that has AD5941, and I would like to program it after the board fab. I don't seem to find a way to download a file to a flash memory of AD5941 from its datasheet. I
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ADAU1701-SigmaStudio generating odd/even harmonics
Hi Everybody, I am all new to this forum and only a bit of experience in SigmaStudio. My aim is to simulate the famous tube sound in modern sound system. My imagination says, this is not difficult to
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ADAU1451 Programming with USBi (Different protocol usage for DSP Master and Slave ports)
Hi Team, I am working on a project with ADAU1451 DSP, would like to know, whether its possible to use different protocols for Self boot EEPROM and DSP's slave port for external program interface. We p
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ADAU1787 registers generated by SigmaDSP tool, not in datasheet
The following registers are generated by the SigmaDSP tool, but not found in the ADAU1787 datasheet. All have an address > 0xCC00. Are they useful for development and documented somewhere else? /* the
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ADAU1787 BCLK when external 24.576MHz MCLK provided, PLL bypassed
I do not see anything in the data indicating how the ADAU1787 BCLK is generated when an external 24.576MHz MCLK provided and the PLL bypassed. Is there a more detailed clock routing diagram (including