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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]] or [[How_to_use_GPIOs|how-to use gpios]] for more information.

*Editing OS User Space. This mode has a issue, when your system reboot or shutdown Next table pretends help you will need to configure again. [[How to set up UART2 in J990#First_way|Example]]IGEPv2. *Using kernel buddies. This way is not avaliable in First column shows some casesOMAP35xx/DM37xx peripherals and first row shows all IGEPv2 connectors. [[How to set up UART2 in J990#Second_way|Example]] Read articles about connector and [[Linux Kernel 2peripheral before use them.6.37.y#Kernel_Parameters|buddies parametres]]Each configuration can take different solutions.<br> *Editing and compile kernel sources. [[How There are some connectors than have more peripherals available, but they don't have all signals to set up UART2 in J990#Third_way|Example]]use it.<br>Table shows four answers:&nbsp;

=== IGEPv2 === Next table pretends help you to configure IGEPv2*"'''Yes, default configuration(utility)'''": Peripheral enabled by default. First column "utility" shows some OMAP35xx/DM37xx peripheralsif this peripheral is used.<br> *"'''Yes, first row shows all IGEPv2 connectors. Note that not all peripherals are avaliable in all connectors and each default configuration can take diferent solutions, for example(information)'''": some peripherals are only avaliable if you place or replace some resistances, some peripherals are avaliable if Peripheral don't enabled by default. Maybe you need to disable other one<br> *"'''No, other configurations donvia hardware'''t have any problem": Not available, etcbut via hardware (placing or replacing some resistances) can be enabled. There are some connectors than have more peripherals avaliable, but they don<br> *"'''No'''t have all signals to use it. "

| <br>

| [[Connectors Summary#JA41_connector|JA41]] | [http://en.wikipedia.org/wiki/Test_point TP]

| Yes, not default configuration ([[Mux instructions#UART1_in_J990UART1_in_J960|Yes: disable RS485]] )

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

| Yes, not default configuration ([[How to set up UART2 in J990|Yes: disable BT; not default configurationBluetooth]] )

Yes: No, [[How to use UARTs#RS232_Schematic_Igep_V2|via hardware]],

[[Mux instructions#Bluetooth|disable BTBluetooth]]

| Yes: , default configuration ([[Mux instructions#UART3_in_J960|Serial debug]])

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

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

| Yes: , not default configuration ([[Mux instructions#GPIO_in_J990|disable JTAG]]) | Yes: , default configuration | Yes: , default configuration | Yes: , not default configuration | ([[Mux instructionsMux_instructions#GPIO_in_TPTFP410|Yesdisable DVI]])

| Yes: , default configuration | No

Yes: dissable WIFI; , not default configuration ([[Mux instructions#WIFI|disable WIFI]])

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

| Yes: , not default configuration ([[Mux instructions#GPIO_in_J990| No disable GPIOs]])

| Yes: , not default configuration ([[Mux instructions#GPIO_in_J990| No disable GPIOs]])

| Yes: used by BT audio; , default configuration ([[Mux instructions#TP65950_PCM_VSP| No Bluetooth audio]])

| Yes: , not default configuration ([[Mux instructions#GPIO_in_J990| No disable GPIOs]])

| Yes: used by WIFI; , default configuration ([[Mux instructions#WIFI| No WIFI]])

| Yes: , default configuration

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

| Yes: shared with , default configuration (DVI | No)

=== Next table pretends help you to configure IGEP MODULE ===. First column shows some OMAP35xx/DM37xx peripherals and first row shows all IGEP MODULE connectors. Read articles about connector and peripheral before use them. Each configuration can take different solutions. <br> There are some connectors than have more peripherals available, but they don't have all signals to use it. <br> Table shows four answers:&nbsp;

Next table pretends help you to configure IGEP MODULE*"'''Yes, default configuration(utility)'''": Peripheral enabled by default. First column "utility" shows some OMAP35xx/DM37xx peripheralsif this peripheral is used.<br> *"'''Yes, first row shows all IGEP MODULE connectors. Note that not all peripherals are avaliable in all connectors and each default configuration can take diferent solutions, for example(information)'''": some peripherals are only avaliable if you place or replace some resistances, some peripherals are avaliable if Peripheral don't enabled by default. Maybe you need to disable other one<br> *"'''No, other configurations donvia hardware'''t have any problem": Not available, etcbut via hardware (placing or replacing some resistances) can be enabled. There are some connectors than have more peripherals avaliable, but they don<br> *"'''No'''t have all signals to use it. "

{| cellspacing="1" cellpadding="1" border="1" style="width: 823px933px; height: 190px;"

| <br>

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

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