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Android System Framework Porting , Implementation & Development Practice: Android framework Training Guinness : Hands-on 1:1 Board*•Android Framework porting and development environment**•Android & Linux Device Drivers: Drivers and integration principle**•Android HAL & Framework: Architecture Overview**•Android HAL & Framework: the integration of hardware and software to implement on board training**•Android HAL & Framework: Native Service Design and Implementation**•Android HAL porting and implementation: Audio & ALSA integration**•Android HAL porting and implementation: Framebuffer integration**• Android HAL porting and implementation: Sensors Integration**•Android HAL porting and implementation: Camera Integration**•Android HAL porting and implementation: WiFi & wpa_supplicant integration**•Android HAL porting and implementation: 2D accelerated integration**•Android HAL porting and implementation: Multi-Touch Protocol & Touch Screen Integration**•Android Multimedia: Architecture Design and Principles**•Android Multimedia: Stagefright Architecture and Practice**•Android Multimedia: OpenMAX architecture and Practice**•Android Multimedia: mPlayer integration**•Android IPC: How It Works and Binder driver**•Android Power Management: PMIC Porting and Implementation Structure and principle of operation* On Fri, May 23, 2014 at 12:11 PM, Aswin <asp1...@gmail.com> wrote: > Hi, > > Since BBB is a 32 bit device and the microcontroller is 8 bit, shouldn't > we set the number of data bits in UART frame in BBB to 8 bits? > > > > On Thursday, May 22, 2014 9:34:13 PM UTC+5:30, Joshua Datko wrote: >> >> >> >> I did a blog post showing how to use UART4 to talk to an ATmega328p >> [1]. My ATmega was at 3.3V though, so you'll need to use logic level >> converters (MOSFETs) to convert between your 5V micro and the Beagle, >> which operates at 3.3V logic levels. This blog post [2] uses the 5V >> version and shows how to use the logic level converters. >> >> If you have a recent debian image, you can enable UART 4 with the >> following command: >> >> echo BB-UART4 | sudo tee /sys/devices/bone_capemgr.*/slots >> >> If you don't have the BB-UART4-00A0.dtbo in /lib/firmware, you should >> probably upgrade your BBB. >> >> After that command, you should see /dev/ttyO4 appear, which is the UART >> you seek. >> >> You may need to change the baud rate of your serial line, do that with >> this command: >> >> sudo stty -F /dev/ttyO4 9600 >> >> Good luck, >> >> Josh >> >> >> [1] http://datko.net/2013/11/11/bbb_atmega328p/ >> [2] http://www.instructables.com/id/Program-an-Arduino-using- >> BeagleBone-without-USB/?ALLSTEPS >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
