Hi Abinay/Dave,
We ran the Analog script file for ADV7281.
Still we are not getting ACK for address (0x42).
After writing 0x00 in 0x0F subaddress, we are not getting the crystal output.
We also tried by providing clock externally. Still same response.
Is there any signal status we need to check.
Thanks & Regards
Sreeni
AMB5 ;Ext :5030
From: Sreenivasan Devan, ERS-HCLTech
Sent: Friday, May 09, 2014 4:04 PM
To: 'jive-357784351-2fiq-2-31z9@analog-vm.hosted.jivesoftware.com'; Anoop.Kunhanandan@analog.com; Abhinay.Patil@analog.com
Cc: Hema S - ERS, HCLTech. (shema@hcl.com)
Subject: RE: Re: ADV7281 I2C config New message: "ADV7281 I2C config"
Hi all,
I have probed the below signals
1) 3.3V
2) 1.8V
3) PWRDN
4) RESET
Power ON.png – During Power we captured the signal. BIOS is resetting all the signal.
SW_Code.png – Our SW code is toggling PWRDN and RESET signal.
We are using address 0x42 .ALSB is high.
Thanks & Regards
Sreeni
AMB5 ;Ext :5030
From: Sreenivasan Devan, ERS-HCLTech
Sent: Friday, May 09, 2014 2:25 PM
To: 'jive-357784351-2fiq-2-31z9@analog-vm.hosted.jivesoftware.com'; Anoop.Kunhanandan@analog.com<mailto:Anoop.Kunhanandan@analog.com>; Abhinay.Patil@analog.com<mailto:Abhinay.Patil@analog.com>
Cc: Hema S - ERS, HCLTech. (shema@hcl.com<mailto:shema@hcl.com>)
Subject: RE: Re: ADV7281 I2C config New message: "ADV7281 I2C config"
Hi Dave,
We tried below condition .Still we are unable to get ACK from ADV7281.
1) Power sequence provided as per datasheet . 3.3V first and then 1.8V
2) Then PWRDN signal is made HIGH followed by RESET
3) We tried feeding external 28.6MHz clock also. Still no response.
Is there any other way we can check.
What are the conditions for not getting ACK?
Thanks & Regards
Sreeni
AMB5 ;Ext :5030
From: Sreenivasan Devan, ERS-HCLTech
Sent: Thursday, May 08, 2014 7:38 PM
To: 'jive-357784351-2fiq-2-31z9@analog-vm.hosted.jivesoftware.com'; 'analogvm-admin@analog-vm.hosted.jivesoftware.com'
Cc: Abhinay.Patil@analog.com<mailto:Abhinay.Patil@analog.com>; Hema S - ERS, HCLTech. (shema@hcl.com<mailto:shema@hcl.com>)
Subject: RE: Re: ADV7281 I2C config New message: "ADV7281 I2C config"
Hi,
Any updates on below queries.
We are not getting ACK from ADV7281.
Is there any I2C sequence we need to follow?
Thanks & Regards
Sreeni
From: Sreenivasan Devan, ERS-HCLTech
Sent: Wednesday, May 07, 2014 8:46 PM
To: 'jive-357784351-2fiq-2-31z9@analog-vm.hosted.jivesoftware.com'
Cc: Abhinay.Patil@analog.com<mailto:Abhinay.Patil@analog.com>; Hema S - ERS, HCLTech. (shema@hcl.com<mailto:shema@hcl.com>)
Subject: RE: Re: ADV7281 I2C config New message: "ADV7281 I2C config"
Hi Dave,
Do we need to write 0x0F thru I2C ? Currently we are toggling PWRDWN pin thru GPIO.
Pls provide the I2C address and data sequence we need to follow?
Thanks & Regards
Sreeni
AMB5 ;Ext :5030