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Found 7 results

  1. Hello everyone! I wanted to challenge myself and I tried implementing an I2C master capable of configuring SSM2603. I've been so far unsuccessful, not even an ACK shows up when attempting a read. Here's the wave I'm generating (I'm trying to read reg 0x6) compared with the phases as described in the datasheet. They look the same both in Post-implementation timing simulation and when checking the probes. The ACKs from master side A(M) and ~(A(M) are given unconditionally for the time being. Question 1: do you see any issue here? Question 2: The tool infers OBUFT for ac_sda
  2. Hello, I am having trouble outputting sound on Linux using SSM2603. The SSM2603 device driver loads normally. It is also registered in ALSA sound card list. However, "input / output error" is raised in "alsactl init". ("amixer" is also the same.) It plays when I play wave file with "aplay" but it does not output to "R/LOUT pin" of SSM2603. Regards, Namio
  3. I am trying to access the audio codec SSM2603 on ZYBO over i2c interface from linux user-space for some register get and set, what i did so far I enabled in the device-tree PS I2C_0 in system-user.dtsi &i2c0 { ssm2603: [email protected]{ #sound-dai-cells = <0>; compatible = "adi,ssm2603"; reg = <0x1a>; }; i2cdetect -l output i2c-1 i2c Cadence I2C at e0004000 I2C adapter i suppose i2c coec should appear on address 0x1a but nothing i2cdetect -y -r 1 0 1 2
  4. Hello, I have a question about audio. I've already asked about the issue. Another question is "Known Issues" of the BSP provided in "github". (https://github.com/Digilent/Petalinux-Zybo-Z7-10/blob/v2017.2-1/README.md) What does "Audio is currently completely non-functional" mean in "Known Issues"? Does "Zybo Z7-10" mean it is impossible to run audio properly? Do you provide a BSP that solves this problem? We did not have to buy the "Zybo Z7-10" if Audio was not supported. I would appreciate your help in more depth. Regards,
  5. Hi, I just purchased a zybo and attempted to get the demo project from digilent working: https://reference.digilentinc.com/learn/programmable-logic/tutorials/zybo-dma-audio-demo/start I am using Vivado 2017.1 instead of 2016.4 that the tutorial uses. I suppose that it made no difference. It passed synthesis but when implemented, errors came up as files attached. I noticed that there are only 2 ports on the .xdc file but apparently the top module uses more than two ports. They don't even have the same names. I'm pretty noob so I might miss a really simple solution. Thanks a lot.
  6. Hello guys; Can you refer me to a quick guide about how to use Audio signal on ZYbo board? I just want to know if there is any simple tutorial about how to get data from audio jack and have in on Arm side. Appreciate your comments in advance.
  7. After trying about everything I could think of, I am still not able to produce any sound through the DAC on the Zybo's audio chip. I tried initializing the chip via I2C using what I think are the proper register values and the proper power on sequence, both using a core I wrote myself, and alternatively by connecting the I2C interface through to the Processing System and using Linux and i2c-tools there to set the register values from the command line. My initialization sequence includes activating the digital core (R9), enabling the DAC by setting DACSEL, unmuting the DAC, powering on bot