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= Overview =
This How-To is meant to be a starting point for people to learn configure mux for IGEP v2 devices as quickly and easily as possible. For this how-to i used [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz Linaro Headless] and Ubuntu 10.04 with Linaro Toolchain.
Mux (or multiplexer) is a Omap peripheral that can be controlled via software. Its function is connect other peripherals to some available Omap pins.
This mode is used to disable some pins and reduce power consumption. <br>
Please contribute .. = Feedback and Contributing = At any point, if you see a mistake you can contribute to this wiki. = '''IGEP''' =
=== Important tips<br> ===
*Editing OS User Space. this mode has a issue, when your system reboot or shutdown you will need to configure again. [[How to set up UART2 in J990#First_way|Example]].
*Using kernel buddies. This way is not avaliable in some cases. [[How to set up UART2 in J990#Second_way|Example]]. [[Linux_Kernel_2Linux Kernel 2.6.37.y#Kernel_Parameters|Buddies examples]].<br>
*Editing and compile kernel sources. [[How to set up UART2 in J990#Third_way|Example]].<br>
[http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=spruf98v&fileType=pdf More information] about mux. = Feedback and Contributing = At any point, if you see a mistake you can contribute to this How-To.
= Available peripherals on external connector =
|-
| [[Peripherals Summary#GPIO|GPIO]]
| [[Mux_instructionsMux instructions#GPIO_in_J990|Yes: not default]]<br>
| No
| No
| [[Mux_instructionsMux instructions#GPIO_in_JTAG|Yes: not default]]| [[Mux_instructionsMux instructions#GPIO_in_JC30|Yes: default]]| [[Mux_instructionsMux instructions#GPIO_in_JA42|Yes: not default]]| [[Mux_instructionsMux instructions#GPIO_in_JA41|Yes: not default]]<br> | [[Mux_instructionsMux instructions#GPIO_in_TP|Yes]]
|-
| [[Peripherals Summary#SPI|McSPI1]]