Re: Sample rate killer?
For this specific point please refer to page 42 Mode Control Register"A write to ADCxMDE resets the corresponding ADC ... "What is done by changing the gain.
View ArticleRe: Sample rate killer?
Thanks, but I have to say it is very disappointing that the documentation failed to mention the gain in the table on page 16. Even in the paragraph you quote, it failed to specify the number of samples...
View ArticleRe: unpowered ADV7611
Most HDMI transmitters have the ability to monitor the termination on the transmit line. As an example look at the ADV7511 Monitor Sense State bit. It goes high when it detects > 1.8V on the TMDS...
View ArticleRe: Sample rate killer?
Thanks for high-lighting this - we will take in account for future enhancements. As written above, it is assumed for Sigma-Delta-ADCs to work this way, any change to the configuration restarts the ADC...
View ArticleRe: Camera interface to HDMI port
It really depends on what your source can output. For the smallest bus I'd use 1 clock plus 8 data lines running YCbCr 422 with the clock set at 2x the pixel rate. Always keep it SDR if possible....
View ArticleRe: ADV7612 SHA and KSV
If it is a pure sink then the SPA will be the original one you load in the initialization EDID table along with the SPA_B that you configure. If it is a repeater then the EDID will be derived from the...
View ArticleADV7842 HDMI force free run 480i with 640x480 format input connected
Hi, We have set up the ADV7842 to free run in 1440x480i format. However, if we connect up a 640x480 source to the input, we see disruption on the input despite all the registers being set to force the...
View ArticleRe: ADV7393 - Video Output after hard reset
It appears the the ADV7393 is 8-bit NTSC BT656 by default.
View ArticleRe: Fast loop unrolling techniques
Thanks Gideon and Cheng. Those are some good ways to optimize this core cycles. One more method to get it optimized is by using the below given assembly code. P0.H = HI(_sImage);P0.L = LO(_sImage);P1 =...
View ArticleRe: ADV7842 HDMI force free run 480i with 640x480 format input connected
Yes, that fixes it. Are you now telling me to turn off 'DIS_AUTO_PARAM_BUFF'? We had to turn that on to get around another problem we were seeing (I think it was when we get HDCP content in...) Edit:...
View ArticleRe: How to meet high input resistance and input bias current return...
Hi Emman, Thanks for your answers. You helped a lot. According to your replies there is no "elegant" solution for this problem. Unfortunately third electrode cannot be applied so the simpliest way the...
View ArticleRe: AD9643 SNR Vs input span
Hi,I am taking the data in my system design. My input signal is constant but I am varying just the input span of ADC by writing into register 0x18. So in this case should I see any change in the SNR?...
View ArticleRe: Could not find supported CPU core on JTAG chain
Hi, Are you using the ADUC7026BSTZ62I or the ADUC7026BSTZ62 part on your board? You might be in the kernel downloader mode when you perceive the part is “not working”.
View ArticleRe: LwIP+VDK application in ADSP 518F internal SPI Flash Memory
Hi Giri, That may not be possible. The internal SPI flash in BF51x processor is not memory mapped. So, processor cannot directly execute code from it. Thanks,PG
View ArticleRe: Zynq and adv7511 audio
An update: I modified the design for the Zedboard to use the "hard" I2C controller in the PS instead of the FPGA implementation. This frees up a bunch of resources, and reduces power too. After I got...
View ArticleRe: Color Conversion
Hi, I have moved this discussion from the ADSP-BF60x community to the Software Modules and SDK community, please continue this discussion here. Regards,Colin.
View ArticleADV7181D VGA decoding to 16 bit YUV422
Hi, We are currently using an ADV7181D to decode VGA (1024 x 768 @60Hz) to 16 bit YUV 422. After looking at the scripts for the ADV7181D (:RGB 1024x768 _@ 60Hz 12-Bit DDR 65.000MHz Out through HDMI:)...
View Article