Changes

= Feedback and Contributing =

At any point, if you see a mistake you can contribute to this How-To. = Disable Peripherals = === BT/WIFI === See [[Frequently Asked Questions and Their Answers#Is_it_possible_to_config_the_wireless_LAN_and_bluetooth_so_they_are_completely_off.2C_and_not_consuming_any_power_at_all.3F|FAQ]] to see with pins need to configure.<br>  ==== Bluetooth<br> ==== ===== First way: ===== Logging with root user via SSH or Serial cable.<br>  Go to /sys/kernel/debug/omap_mux/<br>  Set sdmmc2_dat5 to gpio137 (mode 4): <pre>echo 0x004 &gt; sdmmc2_dat5 </pre> Revise that: <pre>root@localhost:/sys/kernel/debug/omap_mux# cat sdmmc2_dat5name: sdmmc2_dat5.gpio_137 (0x48002166/0x136 = 0x0004), b ah3, t NAmode: OMAP_PIN_OUTPUT | OMAP_MUX_MODE4signals: sdmmc2_dat5 | sdmmc2_dir_dat1 | cam_global_reset | sdmmc3_dat1 | gpio_137 | hsusb3_tll_stp | mm3_rxdp | safe_mode</pre> Go to: /sys/class/gpio/  Check that gpio137 is in user space: <pre>root@localhost:/sys/class/gpio# lsexport gpio137 gpio138 gpio139 gpio170 gpio64 gpiochip0 gpiochip128 gpiochip160 gpiochip192 gpiochip32 gpiochip64 gpiochip96 unexportroot@localhost:/sys/class/gpio# </pre> If you don't have it, you should export gpio137: <br> <pre>echo 137 &gt; /sys/class/gpio/export </pre> Set gpio137 to low value to disable bluetooth: <pre>echo 0 &gt; /sys/class/gpio/gpio137/value</pre> Revise that: <pre>root@localhost:/sys/class/gpio# cat /sys/class/gpio/gpio137/value 0root@localhost:/sys/class/gpio# </pre>  <br>  === TP65950 PCM VSP<br> === Please contribute<br>

More information about RS485 [[Connectors_SummaryConnectors Summary#J940_connector|here]] and [http://en.wikipedia.org/wiki/RS-485 here]: