OMAP3530CUS Design

ler

I just recieved a board we designed from fabriacation using the OMAP3530CUS (0.6mm pitch) processor. I can connect to the

part, read and set internal memory, etc. I can single step the internal ROM code. However, when I free run the processor,

I get the following message from Code Composer via the JTAG interface:

A reset occured on the target.

and the "SECURE" indicator flashes on the lower bar of the Code Composer window. I have looked SYS_nRESPWRON signal to

the processor and don't see any noise or dips. What other signals are key that could cause the target to reset like this?

Thanks.

0 BrandonAzbell over 15 years ago

How do you have the device configured for a particular boot mode?

For that boot mode, is there valid code to be executed?

I would suggest taking a look also at sys_nreswarm to see if a watch dog timer is firing and resetting the device.

0 ler over 15 years ago in reply to BrandonAzbell

Expert 1070 points

Brandon,

I have the boot mode switches set to 11110001. I see the UART3 '40w' output which is the attempt at a UART

boot. I have a bootable SD card in the slot, so I am hoping that it will pick that card up and boot. This is

how I was booting an earlier board design.

0 BrandonAzbell over 15 years ago in reply to ler

Is the watchdog timer firing and causing a reset? You might be able to see this via sys_nreswarm.

Processors forum