LS1026 I2C JTAG

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

LS1026 I2C JTAG

Jump to solution
1,538 Views
itzik1
Contributor II

Hello,

Could anybody toggle I2C pins on LS1026 during JTAG test?

These are not toggling in my board while in operational mode all is ok to all I2C devices.

Thanks,

Itzik

Tags (2)
0 Kudos
1 Solution
1,498 Views
itzik1
Contributor II

The test engineer found the solution:

Not like the LS1046, the LS1026 I2C/UART Power Bank need to be Configured before it can be used in JTAG Mode, so added extra command before each test that use this Power Bank.

View solution in original post

0 Kudos
4 Replies
1,499 Views
itzik1
Contributor II

The test engineer found the solution:

Not like the LS1046, the LS1026 I2C/UART Power Bank need to be Configured before it can be used in JTAG Mode, so added extra command before each test that use this Power Bank.

0 Kudos
1,529 Views
Pavel
NXP Employee
NXP Employee

Test other pins on your LS1026a board. Perhaps there are a few similar pins on your board.

If the LS1026a I2C correctly works in normal mode, your JTAG test setting should be checked.

0 Kudos
1,520 Views
itzik1
Contributor II

Other bus like DDR, SPI are function OK in JTAG

Only problem with DVDD pins (I2C, UART)

0 Kudos
1,524 Views
itzik1
Contributor II

Pins have been verified , we have checked with  a scope and found pins are not toggling at all in JTAG Mode while other pins are toggling.

I2C pins are working fine in normal mode.

 

0 Kudos