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This How-To wiki is meant to be a starting point for people to learn configure mux for IGEP devices as quickly and easily as possible. For this how-This wiki contains:<br> *Mux characteristics summary*Tips to avoid problems*Ways to i used configure mux*Tables that links peripherals and connectors for IGEPv2 and IGEP MODULE  There are three ways to configure mux in IGEP Boards based in OMAP35xx and DM37xx:<br>  *[[Mux_instructions|Configuring MUX from OS User Space]]. This mode has a issue, when your system reboot or shutdown you will need to configure again. [[http://releasesHow to set up UART2 in J990#First_way|Example]].linaro*Configuring MUX by using kernel commandline buddies.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-This way is not avaliable in some cases. [[How to set up UART2 in J990#Second_way|Example]] and [[Linux Kernel 2.tar6.37.gz Linaro Headlessy#Kernel_Parameters|buddies parametres] ].<br> *Editing and Ubuntu 10compile kernel sources.04 with Linaro Toolchain[[How to set up UART2 in J990#Third_way|Example]]. <br> 

[http://www.ti.com/generallit/docsug/litspruf98x/getliteraturespruf98x.tsp?literatureNumber=spruf98v&fileType=pdf More information] about mux.

*Some connectors share multiples peripherals like OMAP, WIFI/BT combo, etc. You should disable unused peripherals to avoid interferences.&nbsp; For example: if you want to control WIFI module via J990 disable OMAP or if you want use [[How to set up UART2 in J990|UART2 at j990]] disable Bluetooth. See schematics, of board or [[Connectors Summary|connectors summary]] or [[Mux_instructions#Disable_Peripherals|how-to disable peripherals]] for more information. There are three ways to configure mux in IGEP Boards based in OMAP35xx and DM37xx:<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_wayHow_to_use_GPIOs|Example]]. *Using kernel buddies. This way is not avaliable in some cases. [[How how-to set up UART2 in J990#Second_way|Example]] and [[Linux Kernel 2.6.37.y#Kernel_Parameters|buddies parametres]].<br> *Editing and compile kernel sources. [[How to set up UART2 in J990#Third_way|Exampleuse gpios]]for more information.<br>

| Yes: , not default configuration ([[Mux instructions#UART1_in_J960|disable RS485]])

| Yes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])

| Yes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])

Yes, default configuration ([[Mux_instructionsMux instructions#GPIO_in_J990|info]])

| Yes, not default configuration ([[Mux instructions#GPIO_in_J990|disable JTAG]])

| Yes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])

| Yes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])<br>

| Yes, not default configuration ([[Mux instructions#GPIO_in_J990|disable GPIOs]])

| Yes, not default configuration ([[Mux instructions#GPIO_in_J990|disable GPIOs]])

| Yes, not default configuration ([[Mux instructions#GPIO_in_J990|disable GPIOs]])

| No, [[Connectors Summary#JC30_connector|via hardware ]]

Next table pretends help you to configure IGEP MODULE. First column shows some OMAP35xx/DM37xx peripherals, and first row shows all IGEP MODULE connectors. Note that not all peripherals are avaliable in all connectors Read articles about connector and each peripheral before use them. Each configuration can take diferent different solutions, for example: some peripherals are only avaliable if you place or replace some resistances, some peripherals are avaliable if you disable other one, other configurations don't have any problem, etc. <br> There are some connectors than have more peripherals avaliableavailable, but they don't have all signals to use it. <br> Table shows four answers:&nbsp;

*"'''Yes, default configuration(utility)'''": Peripheral enabled by default. "utility" shows if this peripheral is used.<br> *"'''Yes, not default configuration(information)'''": Peripheral don't enabled by default. Maybe you need to disable other one<br> *"'''No, via hardware'''": Not available, but via hardware (placing or replacing some resistances) can be enabled.<br> *"'''No'''" {| cellspacing="1" cellpadding="1" border="1" style="width: 823px933px; height: 190px;"

| <br>

| Yes: , not default configuration(disable DSS) | Yes: , default configuration

| Yes: , not default configuration(enable: TX and RX) | No

| Yes, default configuration | No | No

| No | Yes, not default configuration(disable: GPIO_64 and GPMC_WAIT3) | No

| Yes, default configuration | Yes, default configuration | Yes, default configuration

| No | Yes, default configuration | No

| No | No | No

| Yes, not default configuration (disable DSS) | No | No

| No | No | No

| No | No | No

| No | No | No

| Yes, not default configuration (disable UART2) | No | No

| No | Yes, not default configuration (disable GPMCs) | No

| No | Yes, not default configuration (disable GPIOs) | No

| No | No | No

| No | No | No

| No | No | Yes, not default configuration (disable GPIOs)

| No | No | No

| No | No | No

| Yes, default configuration (J5) | No | Yes, default configuration (J1)

| No | No | No

'''Under construction'''  [[Category:Tutorials]] [[Category:Work_in_progress]] [[Category:CommunicationsPeripherals]]