Re: Q. About ChipScope and Vivado data capture
I'm using FMCOMMS2 + ZC702. that would not be helpful to me..
View ArticleADIS16480, Datasheet Error
Hi Mark,I think table 94 in the datasheet is wrong after some tests. I think EKF_CNFG[1] = 1 means disabling, while =0 means enable. Regarding other bits in EKF_CNFG, i am not sure whether the...
View ArticleADIS16480, EKF_CFG[0] vs EKF_CFG[9]
Hi Mark,One more question,Is there any difference while observing pitch and roll angles, with regard to different EKF_CNFG[0] / EKF_CNFG[9] settings? After some simple tests via EVAL_ADIS, I don't see...
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Are I and Q completely independent?
i adjusted adc_init like this and this is Vivado's capture. Does this mean I and Q are not separated completely?
View ArticleRe: ADIS16480, SYS_E_FLAG[4], Source of over-range?
Thank you! We appreciate your message about organizing your questions. Since you mentioned that, our preference is that each discussion present only one question, so that the follow-up discussion can...
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Re: ADIS16480, SYS_E_FLAG[4], Source of over-range?
QUESTION ANSWERI don't see an over-range in this data. Would it be possible to provide data for all of the inertial sensors (gyroscope, accelerometer, magnetometer), during the SYS_E_FLAG[4] = 1...
View ArticleADIS16480, register questions
Hi Mark, I'm sorry I didn't put my questions together. While I am testing(only EKF_CNFG is changed, = 0x0203), I am having new questions, 5. Regarding data captured below(totally 5 registers are...
View ArticleRe: ADIS16480, register questions
QUESTION6. In eval-adis, there is a NULL_CNFG in page 3 with address 0E and default value 070A, what is this? ANSWERThe NULL_CFG function is valid for the ADIS16485 and ADIS16488, which share a common...
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Re: ADIS16480, register questions
QUESTION ANSWERIf I understand correctly, EKF_CFG[1], this only disables the influence on the angle output estimation process, through the EKF. It does not disable the magnetometer measurements or the...
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Re: ADIS16480, register questions
QUESTION8. what does this imply, big difference(2.4 degree/sec) of gyro output between two consecutive samples under 2460Hz? Can we deduce the acceleration? ANSWERI might need more information on this...
View ArticleAD5791 Reference Buffer Opamps
The data sheet and reference designs recommend the AD8676 for voltage reference buffers. I would like to use an opamp that draws less supply current than the 3.4mA max of the AD8676. The ADA4077-2...
View ArticleRe: ADV7630 internal EDID issue
Hi Joseph, On Friday, I created a script to write all of these values. Still, it did not configure ADV7630 correctly for internal EDID. I am working with ADV7630 hardware/software experts to understand...
View ArticleRe: ADIS16480, register questions
Hi Mark,Sorry for so many posts with different questions. and thank you to divide the original post into different threads. Fist of all, I also modifed EKF_CNFG to 0x0203, and keep the remaining...
View ArticleTrouble writing some AD9361 PHY registers using libiio
I wrote a wrapper around the libiio library to simplify getting/setting some key ad9361 registers. I have an example application that gets/sets some values and for some reason I'm having trouble...
View ArticleRe: Trouble writing some AD9361 PHY registers using libiio
errno 22 = EINVAL Invalid argument Can you post your test code? -Michael
View ArticleRe: ADIS16480, EKF_CFG[0] vs EKF_CFG[9]
Hi Mark, What I meant is, does EKF[0] and EKF[9] affect pitch and roll accuracy? If so, how? Thanks,Zach
View ArticleRe: Trouble writing some AD9361 PHY registers using libiio
Some private helper methods I wrote: static int get_channel_name_from_index( // Channel index unsigned int chan, // Channel name string char * chan_name){ if (chan == 0)...
View ArticleRe: AD7176: how to read channels in order
After further investigation, I can at least partly answer my own question: My mistake was that I was trying to impose the microprocessor's timing (using a timer interrupt) onto the AD7176, whereas the...
View ArticleRe: AD5791 Reference Buffer Opamps
I would assume the main reason they picked the AD8676 was for the lower voltage noise. To get every last ounce of perfomance from the AD5791, you need to minimize every source of noise. To get...
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EVAL-ADAU1701MINIZ: SigmaStudio's EQs control wrong frequencies
Hello, I am trying to configure above evaluation board as per screenshot below. For the EQ, I use “Filters, Second order, Double precision, 2 Ch, Medium Size Eq”. The only thing I have changed is the...
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