External interface TMS320F28335 ITRAP0

Gorka Talleda

Hello,

I'm using the external CMOS static RAM IS61WV102416BLL, and when executing the following instruction there is no connection with the RAM:

SysCtrlRegs.PCLKCR3.bit.XINTFENCLK = 1;

Checking the assembly code, all the intructions become "ITRAP0".

Curiously, I don't get any problems with the same code in a EZDSP 28335 board, with a GS74116ATP RAM.

Any ideas please? Thanks in advance.

over 12 years ago

0 Gorka Talleda over 12 years ago

Prodigy 50 points

Hello again,

I have resolve the problem. I make a mistake in the schematic in the pin XREADY. I have putted a pull-down but in the XINTF pdf of texas says that it is an input, so i left it unconnecected and now the XINTF runs perfectly.

Thanks.

0 Gautam Iyer over 12 years ago in reply to Gorka Talleda

Guru 192875 points

Cheers,

Gautam

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External interface TMS320F28335 ITRAP0