TMS570LS0432 SYSPC4

Henrik Danielsson

Hello

I'm trying to manually drive the ECLK, but can't write to SYSPC4 unless privileged mode, is this right? According to datasheet SPNU517A–2.5.1.4 it's an ordinary R/W register.

Best regards

Henrik Liljedahl

over 10 years ago

0 Anthony F. Seely over 10 years ago

TI__Guru 68950 points

Henrik,

The -P under privilege bits in the manual refers to bits where the peripheral checks the access rights itself.

But you could also be blocked if you have the MPU setup so that the entire frame containing the system register is set by the MPU as accessible in privilege mode.

So would be good to know what you've done in terms of configuring the MPU.

0 Chuck Davenport over 10 years ago in reply to Anthony F. Seely

TI__Guru 59540 points

Hello Henrik,

Can you check SYSPC1.ECPCLKFUN to make sure the pin is in GPIO mode instead of functional mode?

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TMS570LS0432 SYSPC4