Hi sum6666:
For the lower side of concentration calibration please enter the right offset value in probe corrections box on the CN0349 software. This is the item 9 at CN0349 Software User Guide [Analog Devices Wiki]
The circuit note: http://www.analog.com/media/en/reference-design-documentation/reference-designs/CN0349.pdf have an explain about the calibration, this will give a help to your software programming.
Hi sum6666
When working with the AD5933 at 1MHz, I was seeing considerable errors in my reading. Have you looked at what the signal looks like on the RFB ( Pin 4). My issues was solved by using a LPF to get rid of noise in the signal. I just connected a low (~200 pF) capacitor across the RFB resistor.
Hi
I'm using the AD5933 Eval board to measure capacitances in the range 100pF to 2000pf, with MCLK = 1MHz and sampling frequency at fixed at 1KHz.
The Eval board takes considerably longer to do a measurement compared to when the MCLK is at 16MHz. I'm not sure if its something inherent to the AD5933 or it is to do with how the eval board and the software are designed.
A single measurement with 200 frequency points would take upwards of 20 seconds to finish. Sometimes exceeding 30 seconds.
Does anyone know if this is to be expected or if there's a solution?
Thanks in advance
Hi everyone!
I bought a AD9234-1000EBZ and ADS7-V2EBZ REV C for test ADC chip. But i connect two board together and turn on power from ADS7-V2EBZ REV C. and LED 3.3Vin, 12Vin on AD9234 dont light. I provide 2Mhz clock soure to ADC board.
Please help me used these board.
Hi
is there any way to change the ADPD105 Band-Pass Filter configuration (change corner frequencies)?
This is for a Hameg HM303-4 Oscilloscope on the "YP" board.It's IC401 AD42830 as seen on the snippet of the
schematic below.
Can anyone tell me where I can get one? Analog Devices has "0" results.
Rochester Electronics has part # AD42830,but I have to buy 224 of them @ $1.10 each.
And there's no spec sheet to see if it's the right one ! So,I don't know anything at this point.
I've tried German distributors and Hamegs new company, Rohde&Schwarz.
Hi,
Have you programmed the FPGA? The FPGA needs to be programmed in order to have the power fed to the AD9234 eval board. Please see wiki user guide for more information
EVALUATING THE AD9680/AD9690/AD9234 ANALOG-TO-DIGITAL CONVERTER [Analog Devices Wiki]
Thanks
Umesh
hi again Travis,
AD's gnuRadio page you linked to, does not say whether or not it supports fmcomms5.. and also not the gnuRadio wiki. Any direction on that?
thanks, baroch
Hi Lars,
Many thanks for taking the time to reply.
Since my original post I have managed to get the ADV7511 probed on boot by enabling 'eudev' device management (previously I was using 'mdev') , but still cannot get any video output.
I am using Kernel v4.1.15. Are you saying that this kernel cannot work with DRM using the I2C encoder driver (drivers/gpu/drm/i2c/adv7511.c)?
To use the newer 'bridge' driver (drivers/gpu/drm/bridge/adv7511/adv7511_drv.c) I need a newer kernel (4.7 or newer)?
Hi lijie,
The ADM3053 has two separate supply pins, VCC and VIO. The VIO pin supplies the signal isolation. The VIO pin can be powered with either 3.3V or 5.0V. The signal logic levels will scale with the supply voltage. The VCC pin is the supply for the integrated isolated power. The VCC pin requires 5.0V.
If you have only 3.3V power available in the system, the LTM2889-3 may be a consideration. It is also an isolated CAN + power device, but it can supply the isolated power from a 3.3V supply.
Linear Technology - Product Page
Regards,
Jason
I reviewed results further and it semms, that scrambler work fine, but your core hasprobably problem with lane skew.
As I mentioned earlier, in order to get the max peak data out, you need enable both activity and inactivity interrupts. It looks like you only set the activity interrupt for X-Axis in your code. In addition, max peak detection works under linked or loop mode only but you are in default mode. The detailed instruction is on P19 of the datasheet.
If you're still not sure how to set it up, you can follow the Github link I provided early on and check the source code in the function below.
/* Set activity/inactivity threshold */
if (dResult == ADXL_DRV_SUCCESS)
dResult = adxl372_Set_Activity_Threshold();
if (dResult == ADXL_DRV_SUCCESS)
dResult = adxl372_Set_Inactivity_Threshold();
/* Set activity/inactivity time settings */
if (dResult == ADXL_DRV_SUCCESS)
dResult = adxl372_Set_Activity_Time();
if (dResult == ADXL_DRV_SUCCESS)
dResult = adxl372_Set_Inactivity_Time();
Hope this helps.
At 2 kHz excitation with 1 MHz MCLK there are only about 31 step (1 MHz / 16 / 2 kHz = 31.25) per period of your digitally synthesized excitation - not particularly smooth and accurate sinewave to begin with. It would be worth looking into just the raw RE and IM data coming out of the chip before digging into your Arduino code. For example: what are the 10 consecutive readings of RE and IM values when system is calibrated? Same when an "unknown" resistor is measured?
People just paste their Arduino code into the message body, but debugging code remotely is quite difficult and time-consuming, so code-related questions often left unanswered.
Hey everyone,
Just need to check a few things.
How exactly is the AD7761 Synchronization done between multiple devices in a daisy chain. Does it matter if the clock arrives at different times to each device? If not, how do they make sure they sample at the same time? Is there any requirements for how delayed the Clock can be between devices.
I'm assuming each clock needs to be routed in such a way that it arrives at each device at the same time, but the datasheet seems to make it sounds like this doesn't matter? Just need to double check as I finish off the PCB.
Also I'm assuming a LVCMOS clock shouldn't be an issue?
Thanks in advance for any help!
leviathan 's suggestion is a sound one - whatever you see with a scope (if you have access to one) on RFB pin is what is digitized by the on-chip ADC, so the quality of signal there should be pretty good to have a shot at decent measurement results. Also, AD5933 synthesizes smoother excitation.
It might be helpful to review a relatively recent thread by Glanthor and ronishi3 .
Hi ACH,
The .metadata folder is where your CrossCore Embedded Studio (CCES) preferences and intermediate files created by Eclipse plugins, for example, are stored. The .metadata folder your CCES workspace.
A workspace isn't necessarily required to ensure that your projects can be used; any projects that you have created (and added to source control) can be added to a new workspace using File | Import.
You can also use CCES headless tools to automate building of your projects - FAQ: Using Blackfin and SHARC from the command line in CrossCore Embedded Studio.
The main item that I think you'd want to keep with your CrossCore project is their launch configuration settings. Those can be transferred from your CCES workspace (.metadata folder) to your project folder by choosing Common | Shared file in your launch configuration(s) and selecting the CrossCore project.
If there are any other preferences, for example, that you're specifically interested in backing up or storing with your CrossCore project(s), then let us know.
Hope this information is useful.
Hi,
Travis
I build basic project from your no os setup link in sdk of ''hello word'' but how i can edit main c file of DragosB source code for building some applications.One more question is that how i can use Microblaze on VC707 according your guide without PS operation.
Thanks!
Thank you for the reply . I will try to compile the latest version of hdl .
BUT will it effects the config part of AD9528 ?
When the AD9224's clock pin is disconnected, the burr of the input port will disappear.
Thanks for your reply!
But i dont known, how to program code for FPGA.
Step 1: I open SPIcontroller software and a notification show "The FPGA needs to be programmed on ADS7V2 platform for SPI operations"
Step 2: I used DPGDownloader software for update the newest firmware.
Step 3 i restart all device of system.
but all of them dont change.
I dont connect with ADC evaluation board. and all power led dont light.
thanks for your help