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How to MUX GPIO_129 on AM3703 (CUS-Package)

cjaeger1
Prodigy 10 points

Hi,

I have read in the Hardware Migration Guide (http://processors.wiki.ti.com/index.php/OMAP35x_To_AM37x_Hardware_Migration_Guide)  that there was a change relating on the handling with the gpios 120 - 129.

On our board we have used the following configuration for the GPIO_129:

Mux.h:                    CONTROL_PADCONF_GPIO_129    0x0A5A

board-config.h:    MUX_VAL(CP(GPIO_129),        (IDIS | PTU | DIS | M4))

Also the CONTROL_PBIAS_LITE register is configured correctly.(The PBIASLIGHTPWRDNZ1 Bit is set to 1).

However, I can't measure an output signal on the GPIO_129 pin.

I also used for example GPIO_139 with the following settings:

mux.h:                CONTROL_PADCONF_MMC2_DAT7    0x016A

board-config.h: MUX_VAL(CP(MMC2_DAT7),        (IDIS | PTD | DIS | M4))

In this case the configuration works correct, and there can be measured an output signal.

Has someone an idea, why my GPIO_129 configuration doesn't work?

Thanks in advance,

Best Regards

Christian