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OLIMEX© 2015

A13-OLinuXino-MICRO user's manual

CHAPTER 3: A13-OLinuXino-MICRO BOARD DESCRIPTION

3. Introduction to the chapter

Here you get acquainted with the main parts of the board. Note the names used on the board might
differ from the names used below to describe them. For the actual names check the A13-
OLinuXino-MICRO board itself.

3.1 Layout (top view)

The picture above shows the initial revision B of A13-OLinuXino-MICRO.

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Summary of Contents for A13-OLinuXino-MICRO

Page 1: ...A13 OLinuXino MICRO Open source single board mini computer USER S MANUAL Document revision B June 2015 Designed by OLIMEX Ltd 2013 All boards produced by Olimex LTD are ROHS compliant ...

Page 2: ...f merchantability or fitness for purpose are excluded This document is intended only to assist the reader in the use of the product OLIMEX Ltd shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product This evaluation board kit is intended for use for engineering development de...

Page 3: ...to the chapter 10 3 1 Layout top view 10 CHAPTER 4 THE ALLWINNER A13 MICROCONTROLLER 11 4 Introduction to the chapter 11 4 1 The microcontroller 11 4 2 Block diagram 13 CHAPTER 5 CONTROL CIRCUITY 14 5 Introduction to the chapter 14 5 1 Reset 14 5 2 Clock 14 5 3 Power supply circuit 14 CHAPTER 6 CONNECTORS AND PINOUT 15 6 Introduction to the chapter 15 6 1 Communication with the A13 15 6 1 1 USB co...

Page 4: ...onal hardware components 23 CHAPTER 7 SCHEMATICS 24 7 Introduction to the chapter 24 7 1 Eagle schematic 24 7 2 Physical dimensions 26 CHAPTER 8 REVISION HISTORY AND SUPPORT 27 8 Introduction to the chapter 27 8 1 Document revision 27 8 2 Board revision 27 8 3 Useful web links and purchase codes 28 8 4 Product support 29 Page 4 of 29 ...

Page 5: ...se LCD if you disable VGA HDMI Audio output Microphone input pads no connector 1 User key 4 Mount holes UEXT connector for connecting additional UEXT modules like Zigbee Bluetooth relays etc GPIO connector with 68 74 pins and these signals 17 for adding NAND flash 22 for connecting LCDs 20 4 including 8 GPIOs which can be input output interrupt sources 3x I2C 2x UARTs SDIO2 for connectinf SDcards ...

Page 6: ...he board and NAND memory with stored Android image The A13 OLinuXino MICRO is the other less populated but cheaper board in the family It also lacks Android out of the box 1 4 Organization Each section in this document covers a separate topic organized as follow Chapter 1 is an overview of the board usage and features Chapter 2 provides a guide for quickly setting up the board and software notes C...

Page 7: ...re needed in order to achieve minimum functionality Recommended items that is good to have in order to be able to interact with the most important of the features of the board Required items 5V 5W required 5V 1A for optimal power LCD preferably with touchscreen panel display for the LCD_CON OR TV monitor with RGB port or suitable connector USB hub for splitting the USB else you will be unable to c...

Page 8: ...ino MICRO via external supply using the power jack or via the USB OTG connector Depending on your preferred way of powering A13 OLinuXino MICRO you might need additional hardware The preferred way of powering board is via the PWR jack with 5Vdc with a power of 5W e g 5Vx1A This will make the board fully powered and able to power most peripherals connected to it The board can also be powered by the...

Page 9: ... from SD card 2 5 Software instructions and available SD card images This can vary depending on what the owner of the board want to achieve Good collection on information on the subject can be found at the following WIKI articles https www olimex com wiki A13 OLinuXino MICRO https www olimex com wiki A13 OLinuXino Other good sources are 1 the Wordpress site where a lot of side projects are publish...

Page 10: ...apter Here you get acquainted with the main parts of the board Note the names used on the board might differ from the names used below to describe them For the actual names check the A13 OLinuXino MICRO board itself 3 1 Layout top view The picture above shows the initial revision B of A13 OLinuXino MICRO Page 10 of 29 ...

Page 11: ...1920 1080 30fps Support H 264 H 263 VC1 Mpeg1 2 4 Divx 3 4 5 6 Xvid VP6 8 AVS etc HD Video Encoding Support encoding in H 264 format Up to 1920 1080 at 30fps DPU LCD Interfaces CPU RGB Memory DDR2 DDR3 Up to 533MHz 16 bits Data Bus Memory capacity up to 512MB MLC TLC SLC EF NAND 2 flash chips ECC 64 bit Support NAND of 5xnm 4xnm 3xnm 2xnm Support NADN of Samsung Toshiba Hynix Peripherals USB2 0 OT...

Page 12: ...P APU E Reader Ultra low System Power Consumption 15 20 lower than competitors Smart Backlight auto adjust backlight acc to the image display Package eLQFP176 More information can be found on Allwinner s web site at the following web address http www allwinnertech com product A13 html Page 12 of 29 ...

Page 13: ...OLIMEX 2015 A13 OLinuXino MICRO user s manual 4 2 Block diagram The block diagram is taken from Allwinner s datasheet Page 13 of 29 ...

Page 14: ...tion from brown out conditions when the supply voltage drops below a safe operating level The reset goes to processor pin 195 The reset circuit is connected to button RESET which means pressing RESET would perform a hardware reset on the board 5 2 Clock 24 MHz quartz crystal Q1 is connected to pins 91 and 92 of the A13 processor 5 3 Power supply circuit The 5V power supply is handled by three volt...

Page 15: ...port Note that we haven t still managed to run Android from the SD card so it might require tweaking the image to be able to do it We have had a successful Debian booting from SD card 6 1 1 USB communication There is only one USB type A host wired to a USB controller This means that an external USB hub is required to ensure you have enough room for all USB devices you might want to use keyoard mou...

Page 16: ...id image especially since you have ordered a board from the A13 family without built in memory We have tested a number of microSD cards on the OLinuXino boards and all of them worked fine regardless manufacturer or capacity However keep in mind that some of the lower quality microSD cards might draw too much current from the slot which might cause power state problems If you suspect the microSD ca...

Page 17: ...ule A13 OLinuXino MICRO has an UEXT connector and can connect with Olimex s UEXT modules For more information on UEXT please visit https www olimex com Products Modules UEXT resources UEXT pdf UEXT connector Pin Signal Name Processor Pin 1 3 3V 2 GND 3 UART1_TX 152 4 UART1_RX 151 5 TWI2_SCK 161 6 TWI2_SDA 160 7 SPI2_MISO 117 8 SPI2_MOSI 116 9 SPI2_CLK 115 10 SPI2_CS0 114 The UEXT pinout is also pr...

Page 18: ...ector The GPIO connector numbers are printed at the bottom of the board for your convenience GPIO 1 Pin Signal Name Processor Pin 1 5V 2 GND 3 3 3V 4 GND 5 RESET_N 159 6 NMI_N 158 7 PIN0 8 PIN3 9 PIN1 10 PIN2 PIN0 PIN1 PIN2 and PIN3 are connected to the power regulator module AXP209 Page 18 of 29 ...

Page 19: ...l Name Processor pin 1 5V 2 GND 3 3 3V 4 GND 5 PIN4 TWI0 SCK 101 6 PIN39 USBH_EN 14 7 PIN5 TWI0 SDA 102 8 PIN38 VGA_DIS 13 9 PIN6 PW0 103 10 PIN37 LED1 12 11 PIN7 150 12 PIN36 125 13 PIN8 104 14 PIN35 124 15 PIN9 10 16 PIN34 123 17 PIN10 TWI1 SCK 105 18 PIN33 122 19 PIN11 TWI1 SDA 106 20 PIN32 121 GPIO Pin Signal Name Processor pin GPIO Pin Signal Name Processor pin 21 PIN12 NWE 8 22 PIN31 120 23 ...

Page 20: ...readings or perform hardware debug The LCD_CON connectors connector numbers are print at the bottom of the board for your convenience LCD_CON connector GPIO Pin Signal Name Processor pin GPIO Pin Signal Name Processor pin 1 5 2 GND 3 3 3 4 GND 5 LCD_D18 135 6 LCD_D18 135 7 LCD_D18 135 8 LCD_D19 134 9 LCD_D20 133 10 LCD_D21 132 11 LCD_D22 131 12 LCD_D23 130 13 LCD_D10 141 14 LCD_D10 141 15 LCD_D10 ...

Page 21: ... You should provide 5 volts 1A maximum to the board Pin Signal Name 1 Power Input 2 GND More info about the power supply can be found in chapter 5 of this manual 6 8 Headphones and microphone connector Standard headphone jack and dual pins for microphone are mounted for the audio out in interfacing Microphone Audio out connector Pin SIGNAL NAME Processor Pin 2 L channel 74 3 R channel 78 5 HPCOM G...

Page 22: ... description Please note that all the jumpers on the board are SMD type If you feel insecure of your soldering cutting technique it is better not to try to adjust the jumpers 6 10 1 1 2V_E 1 5V_E 3 3V_E These three jumpers provide test pads during production and debugging They are You can check the supply voltages It is not recommended to change their default positions The default positions are cl...

Page 23: ...on OLinuXino but are not discussed above They are listed here for completeness UBOOT button used to enter bootloader mode Reset button used to reset the board 256GB 128Mbit x 16 DDR3 SDRAM the exact memory used in the first revisions of the board is HYNIX H5TQ2G63BFR LED1 PWR_LED GPIO LED power on LED Page 23 of 29 ...

Page 24: ...visible only for reference here You can also find it on the OLinuXino s GitHub repository https github com OLIMEX OLINUXINO They are located in HARDWARE section You are allowed to view and edit the schematics as long you keep them free and you mention at least the source address e g https www olimex com as according to Creative Commons Attribution Share The EAGLE schematic is situated on the next ...

Page 25: ...8 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C97 C98 C100 C101 C102 C103 C104 D1 D2 D3 D4 D5 D6 D7 D8 FET1 FET2 FET3 FET4 GND_PIN 1 2 3 4 5 6 7 8 9 10 GPIO 1 1 2 3 4 5 6 7 8 9...

Page 26: ... dimensions Note that all dimensions are in mils The three highest elements on the board in order from the tallest to the shortest are the VGA connector 560mils capacitor C102 550mils capacitor C53 500mils Note that those heights include the PCB Page 26 of 29 ...

Page 27: ... web page for your device is listed Be sure to check it after a purchase for the latest available updates and examples 8 1 Document revision Revision Changes Modified Page A 07 12 12 Initial release All B 10 11 15 General document improvements All 8 2 Board revision Remember to check the schematics and the board design files to compare the differences Revision Notable Changes B Initial release of ...

Page 28: ...O ORDER CODES A13 OLinuXino MICRO the lite board of the A13 OLinuXino family A13 OLinuXino the base version of the OLinuXino without WIFI and NAND A13 OLinuXino WIFI the full version of A13 OLinuXino with added 4GB NAND memory Android image and MOD WIFI_RTL8188 A13 OLinuXino MICRO SD bootable Micro SD card with Debian Linux image this SD card is suitable only for A13 OLinuXino Micro and doesn t wo...

Page 29: ... spill coffee on them during your work when they are powered Please note that warranty do not cover problems caused by improper use shorts over voltages ESD shock etc If the board has warranty label it should be not broken Broken labels void the warranty same applies for boards modified by the customer for instance soldering additional components or removing components such boards will be not be a...

Page 30: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Olimex Ltd A13 OLINUXINO MICRO ...

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