TDA4VM-Q1: How to configure GPIO0_57 as input or output?

Gibbs Shih

Part Number: TDA4VM-Q1

Tool/software:

Dear Expert

Customer has some problems to use GPIO (GPIO0_57) control as input.

We also reference this thread.

Pinmux checking for PADCONFIG55 register is on going.

I try to use another way to control gpio. (ex: register direct setting)

This is example for gpio0_30 & gpio0_31,

but I do not know how to configure gpio0_57 for "GPIO_DIR01 register" ,"GPIO_OUT_DATA01 Register" or "GPIO_IN_DATA01 register"

How does it mapping to gpio0_54

Many Thanks

Gibbs

0 Gibbs Shih over 1 year ago

Update

I guess it should be ...

gpio0_57 belongs BANK3.

GPIO_DIR23 Register = 0x0060 0038h (offset 0x38)

Set gpio0_57, output 1

mw 0x600038 0xFFFF FDFF
mw 0x60003C 0x0000 0200

If something wrong, please correct me.

Many Thanks

Gibbs

+1 Tanmay Patil over 1 year ago in reply to Gibbs Shih

Hi Gibbs,

As you want to set gpio0_57 as input, you can keep the 0x00600038 to 0XFFFFFFFF ("mw 0x00600038 0xFFFFFFFF 1")

And the read the 0x00600044 and see it's 25th bit ("md 0x00600044 1" and "and" the result with 0x02000000)

Regards,
Tanmay

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