Re: Where can I send my questions I don't want to post in this forum?
All SigmaDSP inquiries will be handled in this forum.
View ArticleRe: AD5791 Voltage Reference Buffer
smacleod, There would be a subtle difference. The -1 stage would have a noise gain of +2, a buffer hasa noise gain of +1. As a side note, a 10k resistor has a thermal noise of 12 nV/rt-Hz, so...
View ArticleRe: Software Update for AD9910
Yes the software currently is for XP. Will an upgrade to the software be available for Windows 7? The current situation, as I understand it, requires Windows 7 to run a virtual copy of XP, that must...
View ArticleRe: AD-FMCJESDADC1-EBZ reference design not working with ZC706?
I program the FPGA with the cf_fmc176_zc706.bit file using iMPACT. However, no characters are displaying on the UART terminal. Also, Chipscope finds 3 ILA cores, but when I trigger each of them on...
View ArticleRe: help a rookie out part 2
I have attached both the output from the DAQ (.csv) file, as well as the excel workbook (.xlsx) after running the macro I have created to calculate the G's. Does this seem normal? Thank you,Rob
View ArticleRe: Further questions about DSP Code Programming and Emulator
Hi, Regarding the error when you try to build your new project, this is caused by the LDF. When you create a new project, it links against the default LDF located at "...\214xx\LDF\". This LDF includes...
View ArticleRe: ADG1208 power supply sequencing
Hi HM, I do not understand the statement: "In the sequence of your recommendation, when Vss power up previously, Vdd to Vss became a value of minus, but I could not find the absolute maximum rating."...
View ArticleRe: Frequency Modulation with AD9910
It almost sounds like the device is not playing back from RAM. Loading the RAM and playing back the RAM contents are independent operations. After programming the RAM, have you tried issuing an...
View ArticleRe: Adxl345 linux driver freezes, [raspberry pi i2c]
Hi, In the arch/arm/mach-bcm2708/bcm2708.c file in your kernel you should have a array called bcm2708_spi_devices. This array contains all the SPI devices that are registered to the SPI master on the...
View ArticleRe: help a rookie out part 2
neilzhao, How would I be able to measure or calculate what sensitivity it might be operating at? In the example of the output I posted, this slight difference between 3.3 and 3.6 mV/g would mean the...
View ArticlePlease Help! AD5930....Functions Beautifully One Day, And The Next Day It...
For my senior design project at Miss. State University, we have to program the AD5930 to do a frequency sweep. We have it programmed to start at 100khz, and increase in frequency by 100khz every time...
View ArticleADP5585
I was looking ADP5585 chip and it looks like it is going to fit in my requirements. It has 5*5 keypad configuration. I need only 6 keys in my design. It does not matter if two is R and three is C or...
View ArticleRe: Further questions about DSP Code Programming and Emulator
Excellent! Glad to hear everything looks OK with the latest test. Craig
View ArticleRe: IIO Scope Tool
Robin, This is in reference to the FMCOMMS1 board. Customer will eventually migrate to the FMCOMMS2. I tried updating this in EZ but am not able to edit anything. Regards, Mike BakerStaff Field...
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Re: AD9467 FMC reference design output
Hi Rohit, The square wave is looking just fine, you always going to see that transient part. If your signal generator would have a better performance, maybe it would be smaller. Physically it's...
View ArticleRe: cn-0209
Hi Divya, 1. The AD8226 and attenuator would be used instead of the AD8676 and AD8275 in my example.2. With the attenuation circuit. It makes most sense to bias this point to half the ADC range. In...
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Re: AD9467 FMC reference design output
Hi Istvan, Thanks for your reply i was also thinking about this. For the second question i dont have clock source 250 MHz, i am using square wave from another channel of function generator for clocking...
View ArticleBackground noise filters
I am using the latest Sigma Studio. I did a search and found you have a wind noise filter. But I am using the ADAU1452 DSP. What filters can I use from the software to reduce background noise? Or do...
View ArticleRe: AD-FMCOMMS1: ML605 software hangs
Thanks Adrian and Alex! I will follow the steps given above. Currently I have installed ISE design Suite 14.4 on my PC. Do I need to compile the project with the version 14.6, or can I use the 14.4...
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