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CC3200SDK_1.1.0 Known Issues : Pinmux Mode-0

Siddaram Mathapathi
Expert 5660 points

Hi All,

Please note that a new known issue has been added for SDK 1.1.0 in the link below

processors.wiki.ti.com/.../CC32xx_Summary_of_Known_Issues

Issue Description:

All GPIO pins default to Mode-1 on power-up, unless programmed by the MCU. Set all un-used pins except the serial flash SPI (pin#11, 12, 13, 14) and JTAG pins (16, 17, 19, 20) to Mode-0 to prevent any bus contention. For e.g. By default I2C is muxed onto Pins 01 and 02 and if the application muxes I2C onto some other pins say 03 and 04. This would cause contention.

For further details refer to Issue #2 @ http://processors.wiki.ti.com/index.php/CC32xx_Summary_of_Known_Issues#Pinmux_changes 

Thanks and Regards,

Siddaram