AnsweredAssumed Answered

ADV7401 I2C Bus Crashes

Question asked by Spink Employee on Jun 12, 2016
Latest reply on Jun 13, 2016 by JeyasudhaMuthuPerumal

Hi,

 

When we execute the following recommended settings our i2c bus crashes. 

 

Please advise if these settings are required.

 

 

{0x0E, 0x80}, /*ADI recommended sequence*/

{0x52, 0x46}, /*ADI recommended sequence*/

{0x54, 0x00}, /*ADI recommended sequence*/

{0x0E, 0x00} /*ADI recommended sequence*/

 

 

Full List:

 

{0x05, 0x02}, /*PRIM_MODE = 010b for GR*/

{0x06, 0x05}, /*VID_STD=0101b for 1280x1024 @ 60*/

{0x1D, 0x47}, /*Enable 28.63636 MHz crystal*/

{0x3A, 0x31}, /*Set Latch Clock settings to 011b, power down ADC3*/

{0x3B, 0x80}, /*Enable External Bias*/

{0x3C, 0x5D}, /*PLL_QPUMP to 101b*/

{0x6A, 0x00},/* DLL Phase Adjust*/

{0x6B, 0x82}, /*Sets CPOP_SEL to 0010b 24-bit output, swap Pr
and Pb. Turns on DE bit*/

{0x73, 0x90}, /*Set man_gainv*/

{0x7B, 0x1D},/* Turn off EAV and SAV Codes. Set BLANK_RGB_SEL.*/

{0x85, 0x03}, /*Enable DS_OUT*/

{0x86, 0x0B}, /*Enable STDI Line Count Mode*/

{0xF4, 0x3F}, /*Max Drive Strength*/

//Causes i2c to crash {0x0E, 0x80}, /*ADI recommended sequence*/

//{0x52, 0x46}, /*ADI recommended sequence*/

//{0x54, 0x00}, /*ADI recommended sequence*/

//{0x0E, 0x00}/*ADI recommended sequence*/

 

Thanks,

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