Open main menu

Changes

Mux configuration

3,735 bytes added, 10:55, 17 February 2014
no edit summary
= Overview =
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> 
= Introduction =
Please contribute.
[http://www.ti.com/generallit/docsug/litspruf98x/getliteraturespruf98x.tsp?literatureNumber=spruf98v&fileType=pdf More information] about mux.
= Configure Mux =
Mux options are vast, at the beginning can be difficult and tedious change some default configurations. Use Before configure mux, use the following tips to configure mux without avoid problems:
*Mux can connect multiple connectors at the same peripheral, this improper use can damage the processor. Make sure to disable old connector configuration before use new oneBefore configure mux, revise that this peripheral is not used in other pads. See schematics or [[Connectors Summary|connectors summary]] for more information.
*Some peripherals are only available if you place or replace some resistances. See schematics for more information.<br>
*Some connectors share multiples peripheralslike 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.<br> There are three ways See schematics of board or [[Connectors Summary|connectors summary]] or [[Mux_instructions#Disable_Peripherals|how-to configure mux in IGEP Boards based in OMAP35xx and DM37xx:<br> 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 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 2.6.37.y#Kernel_Parameters|Buddies parametres]].<br> *Editing and compile kernel sources. [[How to set up UART2 in J990#Third_way|Example]].<br>=== IGEPv2 ===
=== Next table pretends help you to configure IGEPv2. First column shows some OMAP35xx/DM37xx peripherals and first row shows all IGEPv2 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;
The next table pretends help you to configure mux in IGEPv2 as you need*"'''Yes, default configuration(utility)'''": Peripheral enabled by default. First column shows some OMAP35xx/DM37xx avaliable peripherals, first row "utility" shows all IGEPv2 connectorsif this peripheral is used. There are some connectors than have more peripherals avaliable<br> *"'''Yes, but they not default configuration(information)'''": Peripheral don't have all pads avaliable enabled by default. Maybe you need to use it. For exampledisable other one<br> *"'''No, via hardware'''": MMC3 in J990Not available, but via hardware (placing or replacing some resistances) can be enabled. <br> *"'''No'''"
{| cellspacing="1" cellpadding="1" border="1" style="width: 823px933px; height: 190px409px;"
|-
| <br>
| [[Connectors Summary#JC30_connector|JC30]]
| [[Connectors Summary#JA42_connector|JA42]]
| [[Connectors Summary#JA41_connector|JA41]] | [http://en.wikipedia.org/wiki/Test_point TP]
|-
| [[Peripherals Summary#UART|UART1]]
| No
| Yes, not default configuration ([[Mux instructions#UART1_in_J990UART1_in_J960|Yes: disable RS485]] | No )
| No
| No
| No
| No
| No<br>Yes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])
|-
| [[Peripherals Summary#UART|UART2]]
| Yes, not default configuration ([[How to set up UART2 in J990|Yes: disable BTBluetooth]] )
|
Yes: No, [[How to use UARTs#RS232_Schematic_Igep_V2|via hardware]],
[[Mux instructions#Bluetooth|disable BTBluetooth]]
| No
| No
| No
| [[Peripherals Summary#UART|UART3]]
| No
| Yes: , default configuration ([[Mux instructions#UART3_in_J960| No Serial debug]])
| No
| No
| No
| No
| NoYes, not default configuration ([[Mux_instructions#TFP410|disable DVI]])
|-
| [[Peripherals Summary#UART|UART4]]
| No
| No
| No
| [[Peripherals Summary#GPIO|GPIO]]
|
Yes, default configuration ([[Mux instructions#GPIO_in_J990|Yes: not default configurationinfo]] )
| No
| No
| Yes, not default configuration ([[Mux instructions#GPIO_in_JTAGGPIO_in_J990|Yes: not default configurationdisable JTAG]] ) | [[Mux instructions#GPIO_in_JC30|Yes: , default configuration]] | [[Mux instructions#GPIO_in_JA42|Yes: not , default configuration]] | [[Mux instructions#GPIO_in_JA41|Yes: , not default configuration]]<br> | ([[Mux instructionsMux_instructions#GPIO_in_TPTFP410|Yesdisable DVI]])
|-
| [[Peripherals Summary#SPI|McSPI1]]
| No<br>
| No
| No
| No
| No
| Yes: default configuration<br>
| No
| Yes, default configuration
| No
|-
| [[Peripherals Summary#SPI|McSPI2]]
| No<br>
| No
| No
| [[Peripherals Summary#SPI|McSPI3]]
|
Yes: dissable , not default configuration ([[Mux instructions#WIFI |disable WIFI]])
| No
| No
| No
| No Yes, not default configuration ([[Mux_instructions#TFP410| Nodisable DVI]])<br>
|-
| [[Peripherals Summary#SPI|McSPI4]]
| Yes: , not default configuration ([[Mux instructions#GPIO_in_J990|disable McBSP1<br> | No GPIOs]])
| No
| No
|-
| [[Peripherals Summary#BSP|McBSP1]]
| Yes: , not default configuration<br> ([[Mux instructions#GPIO_in_J990| No disable GPIOs]])
| No
| No
|-
| [[Peripherals Summary#BSP|McBSP2]]
| No
| No
| No
|-
| [[Peripherals Summary#BSP|McBSP3]]
| Yes: used by BT , default configuration ([[Mux instructions#TP65950_PCM_VSP|Bluetooth audio | No ]])
| No
| No
| No
| No
| Yes: , not default configuration<br> ([[Mux instructions#GPIO_in_J990| No disable GPIOs]])
| No
|-
| [[Peripherals Summary#BSP|McBSP5]]
| No
| No
| No
|-
| [[Peripherals Summary#MMC|MMC1]]
| No
| No
| No
|-
| [[Peripherals Summary#MMC|MMC2]]
| Yes: used by , default configuration ([[Mux instructions#WIFI | No WIFI]])
| No
| No
|-
| [[Peripherals Summary#MMC|MMC3]]
| No
| No
| No
|-
| [[Peripherals Summary#I2C|I2C1]]
| No
| No
| No
|-
| [[Peripherals Summary#I2C|I2C2]]
| Yes: , default configuration
| No
| No
| No
| Yes: No, [[Connectors Summary#JC30_connector|via hardware<br> | No ]]
| No
| No
| No
| No
| Yes: shared with , default configuration (DVI<br> | No)
|-
| [[Peripherals Summary#I2C|I2C4]]
| No
| No
| No
|}
=== IGEP MODULE<br> ===
The next Next table pretends help you to configure mux in IGEP MODULE as you need. First column shows some OMAP35xx/DM37xx avaliable 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 avaliableavailable, but they don't have all pads avaliable signals to use it.<br> Table shows four answers:&nbsp;
*"'''Under constructionYes, 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: 933px; height: 190px;"|-| <br>| [[Connectors Summary#J1_connector|J1]] | [[Connectors Summary#J4_connector|J4]] | [[Connectors Summary#J5_connector|J5]]|-| [[Peripherals Summary#UART|UART1]] | Yes, not default configuration (disable DSS) | Yes, default configuration | No|-| [[Peripherals Summary#UART|UART2]] | Yes, not default configuration(enable: TX and RX) | No | No|-| [[Peripherals Summary#UART|UART3]] | Yes, default configuration | No | No|-| [[Peripherals Summary#UART|UART4]] | No | Yes, not default configuration(disable: GPIO_64 and GPMC_WAIT3) | No|-| [[Peripherals Summary#GPIO|GPIO]] | Yes, default configuration | Yes, default configuration | Yes, default configuration|-| [[Peripherals Summary#SPI|McSPI1]] | No | Yes, default configuration | No|-| [[Peripherals Summary#SPI|McSPI2]] | No | No | No|-| [[Peripherals Summary#SPI|McSPI3]] | Yes, not default configuration (disable DSS) | No | No|-| [[Peripherals Summary#SPI|McSPI4]] | No | No | No|-| [[Peripherals Summary#BSP|McBSP1]] | No | No | No|-| [[Peripherals Summary#BSP|McBSP2]] | No | No | No|-| [[Peripherals Summary#BSP|McBSP3]] | Yes, not default configuration (disable UART2) | No | No|-| [[Peripherals Summary#BSP|McBSP4]] | No | Yes, not default configuration (disable GPMCs) | No|-| [[Peripherals Summary#BSP|McBSP5]] | No | Yes, not default configuration (disable GPIOs) | No|-| [[Peripherals Summary#MMC|MMC1]] | No | No | No|-| [[Peripherals Summary#MMC|MMC2]] | No | No | No|-| [[Peripherals Summary#MMC|MMC3]] | No | No | Yes, not default configuration (disable GPIOs)|-| [[Peripherals Summary#I2C|I2C1]] | No | No | No|-| [[Peripherals Summary#I2C|I2C2]] | No | No | No|-| [[Peripherals Summary#I2C|I2C3]] | Yes, default configuration (J5) | No | Yes, default configuration (J1)|-| [[Peripherals Summary#I2C|I2C4]] | No | No | No|}
[[Category:How_to_forgeWork_in_progress]] [[Category:TutorialsPeripherals]]
Retrieved from "http://labs.isee.biz/index.php?title=Special:MobileDiff/3824...9928"