AMC6821: Need Exampe Code to Bring up thr AMC6821

Wayne Chen (Audio AE)

Part Number: AMC6821

Hi Sirs,

Would you pls advise the example code (or recommended I2C configurations) to bring up the AMC6821 on customer's system, since there is no EVM available for reference.

Thank you and Best regards,

Wayne Chen
01/11/2017

over 8 years ago

0 Matthew Sauceda over 8 years ago

TI__Genius 11750 points

Howdy Wayne,

Thank you for the post. I don't believe there is any example code for the AMC6821 device. I can definitely investigate and verify the recommended configuration settings during initialization. This may take a few days to a week to verify, but I'll update this post as soon as I find out this information.

Additionally, there is an EVM existing for the device, but unfortunately, the drivers for the software are only compatible with Windows XP operating systems. Nevertheless, the EVM's User Guide is a great resource for understanding device operation, and may have the answers you are looking for:

www.ti.com/.../AMC6821EVM-PDK

Best Regards,

Matt

0 Wayne Chen (Audio AE) over 8 years ago in reply to Matthew Sauceda

TI__Genius 15950 points

Thank you Matt. I have ordered an EVM on the website and will check the programming sequence using an I2C analyzer...Wayne Chen

0 Wayne Chen (Audio AE) over 8 years ago in reply to Wayne Chen (Audio AE)

TI__Genius 15950 points

Hello Matt,

I installed the AMC6821 GUI to a Windows XP based PC, however, I still cannot bring up the GUI. The firmare location and version are empty. Do we need to supply 12V input before using this board?

Thank you and Best regards,

Wayne Chen
01/23/2017

0 Matthew Sauceda over 8 years ago in reply to Wayne Chen (Audio AE)

TI__Genius 11750 points

Hi Wayne,

Since most of the LEDs are active, I'm assuming that JMP6 is connected to pins 1-2 (USB powering on-board regulators) is this something you can verify? --I'm not entirely sure of the location of the jumpers from the image.

Page 17 of the EVM User's Guide also displays required Setting Configurations for device communication. Please let me know if this corrects the issue.

Best Regards,

Matt

0 Wayne Chen (Audio AE) over 8 years ago in reply to Matthew Sauceda

TI__Genius 15950 points

Hello Matt, My JMP6 was configured to USB. Would you pls hint about this setting...Wayne Chen

0 Matthew Sauceda over 8 years ago in reply to Wayne Chen (Audio AE)

TI__Genius 11750 points

Howdy Wayne,

Can you verify the SW-2 locations and verify that it is set to the default locations listed in Table 3 of page 17 of the EVM User's Guide:

http://www.ti.com/lit/ug/slau195a/slau195a.pdf

Best Regards,
Matt

0 Wayne Chen (Audio AE) over 8 years ago in reply to Matthew Sauceda

TI__Genius 15950 points

Thank you Matt, My SW2 settings are in line with EVM application note's default values...Wayne Chen

0 Matthew Sauceda over 8 years ago in reply to Wayne Chen (Audio AE)

TI__Genius 11750 points

Howdy Wayne,

It looks like the board is receiving power correctly, one additional check is to probe the voltage on VDD. Are you able to write to and read from any registers? Are you having issues with device communication, or is this post related to FAN functionality?

Best Regards,

Matt

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AMC6821: Need Exampe Code to Bring up thr AMC6821