OLIMEXINO-32U4 development board USER`S MANUAL
Contents
1. ee ED ET TE diass eee EI NEM ER EET true ERIT a22 CHAPTER 10 REVISION HISTORY eesssssesssssccssesccsssscossscccsesscccsecccsesessssseccsesess 2D 10 Introduction to the chapter E E n E b ME eU EN eR 25 10 1 Document EGVESIDELas n dcin true elis ipa oec lise Sa cin LO o UND chai vienna 25 10 2 B ard r visi mee 26 10 3 Web page of vim deyiegias ue niseciaie tilia eet icq exc Eb Fr ask ea Ma C Coa eu V Ta eua EAGE EE Va Vea RM ND v si 27 10 4 Warranty and returns waaniden T 28 Page 4 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 1 OVERVIEW 1 Introduction to the chapter Thank you for choosing the OLIMEXINO 32UA development board from Olimex This document provides a User s Guide for the Olimex OLIMEXINO 32UA development board As an overview this chapter gives the scope of this document and lists the board s features The document s organization is then detailed The OLIMEXINO 32UA development board enables code development of applications running on the ATmega32UA microcontroller manufactured by Atmel Corporation 1 1 Features Leonardo design no FTDI chip the MCU directly handles the virtual COM e ATMEGA32U4 microcontroller all in one USB communication no need for external FTDI chip Input power supply 7 12VDC ULTRA LOW POWER voltage regulators and the consumption is only few microamps which enables hand held2. If the goods are found to be in working condition and the lack of functionality is a result of lack of knowledge on the customers part no refund will be made but the goods will be returned to the user at their expense All returns must be authorized by an RMA Number Email support olimex com for authorization number before shipping back any merchandise Please include your name phone number and order number in your email request Returns for any unaffected development board programmer tools and cables permitted within 7 days from the date of receipt of merchandise After such time all sales are considered final Returns of incorrect ordered items are allowed subject to a 10 restocking fee What is unaffected If you hooked it to power you affected it To be clear this includes items that have been soldered to or have had their firmware changed Because of the nature of the products we deal with prototyping electronic tools we cannot allow returns of items that have been programmed powered up or otherwise changed post shipment from our warehouse All returned merchandise must be in its original mint and clean condition Returns on damaged scratched programmed burnt or otherwise played with merchandise will not be accepted All returns must include all the factory accessories which come with the item This includes any In Circuit Serial Programming cables anti static packing boxes etc With your return encl
3. 5 Introduction to the chapter In this chapter is located the information about the heart of OLIMEXINO 32U4 its microcontroller The information is a modified version of the datasheet provided by its manufacturers 5 1 The microcontroller s features High Performance Low Power AVR 8 Bit Microcontroller Advanced RISC Architecture 135 Powerful Instructions Most Single Clock Cycle Execution 32x8 General Purpose Working Registers Fully Static Operation Up to 16 MIPS Throughput at 16 MHz On Chip 2 cycle Multiplier Non volatile Program and Data Memories 32K Bytes of In System Self Programmable Flash 2 5K Bytes Internal SRAM 1K Bytes Internal EEPROM Write Erase Cycles 10 000 Flash 100 000 EEPROM Data retention 20 years at 85 C 100 years at 25 C 1 Optional Boot Code Section with Independent Lock Bits In System Programming by On chip Boot Program True Read While Write Operation All supplied parts are preprogramed with a default USB bootloader Programming Lock for Software Security JTAG IEEE std 1149 1 compliant Interface Boundary scan Capabilities According to the JTAG Standard Extensive On chip Debug Support Programming of Flash EEPROM Fuses and Lock Bits through the JTAG Interface USB 2 0 Full speed Low Speed Device Module with Interrupt on Transfer Completion Complies fully with Universal Serial Bus Specification Rev 2 0 Supports data transfer rat
4. and battery powered applications Li Ion rechargeable battery power supply option with BUILD IN on board charger so when you attach battery it is automatically charged and kept in this state until the other power source USB or external adapter is removed and it AUTOMATICALLY will power the board no jumpers no switches e Works both on 3 3V and on 5V which is selectable with jumper so 3 3V and 5V shields can be used e UEXT connector which allow many existing modules like RF ZIGBEE GSM GPS to be connected Allows RTC Real Time Clock Q1 can be replaced by RTC NOISE IMMUNE design the LEDs and the button BUT are on the edge of the board so there is easy access even if the boards have shields on them all components are LOWER than the connectors so the shields do not interference with them mini USB connector is used it is common and used in most cell phones so you don t have to buy other cables Original design had a flaw the connectors were not spaced at 0 1 which made bread board use impossible to keep the compatibility we have the original spacing but we also added a 0 1 connector which customer can use with bread boards and jumper wires saving the hustle of soldering All signals on the connectors are printed on top of the board so when you check with probe you know exactly which port you are measuring 4 mount holes make board attachment easier Page 5 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s
5. major derivatives MAPLE and PINGUINO Based on 8 bit AVR technology the computational power of Arduino boards is modest this is why a team from MIT developed the MAPLE project which is based on ARM7 STM32F103RBT6 microcontroller The board has same friendly IDE as Arduino and offers the same capabilities as hardware and software but runs the Arduino code much faster The Maple project can be found at http leaflabs com In parallel with Arduino another project was started called PINGUINO This project chose its first implementation to be with PIC microcontrollers as AVRs were hard to find in some parts of the world like South America so it is likely to see lot of PINGUINO developers are from that part of the world PINGUINO project founders decided to go with Python instead Java for processing language For the moment PINGUINO is much more flexible than Arduino as it is not limited to 8bit microcontrollers Currently the IDE which has GCC in background can support 8 bit PIC microcontrollers 32bit PIC32 MIPS microcontrollers and ARM7 CORTEXMS microcontrollers which makes PINGUINO very flexible because once you make your project you can migrate easily through different hardware platforms and not being bound to a single microcontroller manufacturer The PINGUINO project can be found at http www pinguino cc Page 7 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 2 1 First steps with Arduino IDE Depending when you purchased the board there
6. manual 1 2 Similar boards OLIMEXINO 32U4 is an ARDUINO LEONARDO like board with ATmega32U4 It is a powerful board considering its low price but yet a starter board for the Arduino family The more powerful Arduino board we have in the range is OLIMEXINO 328 based on Arduino Duemilanove It has a more sophisticated supply circuit USB OTG connector and there are more Arduino projects available 1 3 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 has a short introduction to Arduino platform and its derivatives Pinguino and Maple Chapter 3 provides a guide for quickly setting up the board Chapter 4 contains the general board diagram and layout Chapter 5 describes the component that is the heart of the board the ATmega32U4 microcontroller Chapter 6 is an explanation of the control circuitry associated with the microcontroller to reset Also shows the clocks on the board Chapter 7 covers the connector pinout peripherals and jumper description Chapter 8 shows the processor diagram and memory map Chapter 9 provides the schematics Chapter 10 contains the revision history Page 6 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 2 INTRODUCTION TO ARDUINO 2 What is Arduino Arduino is an open source electronics prototyping platform designed to make the process of using electronics in multidisciplinary proj
7. software means remap pins used for programming which would require reinstalling the bootloader 3 3 Powering the board The OLIMEXINO 32UA board is self powered by the miniUSB if it is connected to a USB hub of a computer Alternatively it can be powered via the POWER JACK by 7Vdc to 12Vdc or via the 3 7 V LI BAT connector by 3 7V battery The bootloader starts automatically On powering the board PWR LED should turn on RXLED and TXLED should turn on and monitor the send receive on the virtual COM port LED1 and LED2 should start blinking 3 4 Prebuilt software The board comes with prebuilt ARDUINO bootloader The different part between the other Arduinos and Leonardo is that Leonardo doesn t use FTDI chip nor external chip for the virtual COM port but it is handled by the ATmega32U4 Page 10 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 4 OLIMEXINO 32U4 BOARD DESCRIPTION 4 Introduction to the chapter Here you get acquainted with the main parts of the board Note the names used on the board differ from the names used to describe them For the actual names check the OLIMEXINO 32U4 board itself 4 1 Layout top view L R1 Hus l MC GunxLEO EGDLEDSZE d 4 uos qBc o 5 SEDLED2 RX LED 3 3V 5V SE RaDa f 7 UR2 3 800 Battery PWR JACK PWRLED BUT Set of jumpers ICSP UEXT RST BUT Page 11 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual CHAPTER 5 THE ATMEGA32U4 MICROCONTROLLER
8. xl use q Li X E R11 Rh g 2 c mL 3 open D3 pc LUE 9 p UO avec jus UEXT EIE k 6 ee HH Im E AN 1 2 ay ee PE BST 3 7 BGRXD E vous D3 SCL sj E DZ SDA UNDO VRIGV Beeny Charger s A D14MISO 7 a Dig MOSH D2 AMS1117 ADJ os 5 E idla D15 SCK a0 DI3 UEXT CS PWR rumen pm vul F b E Li N oup F lt Nepraarar 420v0T TOR A GN 8 z FY Jaoven wed 8 m VEM vear 22 cm en 3 Eg R h 3 or l Z mom 86 F elav F T BATTERY R4 vss PRES AGND_E 330R 1 es P EP zT 37V LIBA CLOSE 39 g DWOR OLIMEXINO 32U4 rev iE E Uu not This hardware design by Olimex LTD is licensed under a Creative Commons Attribution ShareAlike 3 0 Unported License Shee A B C J E F 3 Page 23 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual 9 2 Physical dimensions Note that all dimensions are in inches 285538523285 k Di MMX 5 W OLIMEX COM DEV C15 ps ca Re RSTC a z enit aei ee FET2 6 COS n O 5 K wein C e Oo URZ 3 3U Page 24 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 10 REVISION HISTORY 10 Introduction to the chapter In this chapter you will find the current and the previous version of the document you are reading Also the web page for your device is listed Be sure to check it after a purchase for the latest available updates and examples 10 1 Document revision a Initial release Manual adjusted for Arduino I
9. DE version 1 0 1 Fixed links Added info about the I2C pdated disclaimer and warranty pages 2 15 16 17 20 22 CSP and UEXT connector changes due to new 26 All schematics Adjusted formatting fixed some mistakes of the board so there is easy access even if the boards have shields on them not true for RST button Fixed All signals on the connectors are printed on op and on bottom of the board so when you check ith probe you know exactly which port you are measuring not true with Olimexino 32u4 only on omponent side Fixed Proto area is shown there is no proto are Fixed programming debugging outside of the PINGUINO IDE should be ARDUINO IDE Fixed Also note that the board comes with no ixed the LEDs and the BUTTONS are on the edge Page 25 O Pea 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual onnectors soldered on the pin holes Before being ble to connect with a shield you have to solder onnecters yourself the shield connectors are lready soldered Fixed the numbering of sub chapters in chapter 7 Signal on D7 in the table is not BUT Fixed title of 10 4 Web page of your device to 10 4 Warranty and returns Added information about maximum frequency G operation Improved the board s schematic 10 2 Board revision Initial release Top and bottom print adjustments connectors in schematic names because they comply with the new Leonardo definiti
10. IMING AND HER ais Si dir TIMERS ANALOG COMPARATOR USARTI ee N 1 1 i DATA REGISTER acne Dn e p PEE DATA DIR DATA REGISTER DATA DIR PORTE REG PORTB PORTD REG PORTD 1 1 j 1 1 1 1 i i VELA inn PEG PE2 PB7 PBO PD7 PDO Page 20 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 8 1 Memory organization Table 5 1 Memory Mapping Size 32K bytes tart Add Start ress 0x0000 End Address Flash end Ox7FFF Ox3FFF 32 bytes 0x0000 0x001F 64 bytes Start Address EFE 0x0020 Size 32 i Start Address Registers End Address Size End Address 0x005F 160 bytes 0x0060 OxOOFF Size ISRAM size 2 5K bytes Start Address ISRAM start 0x100 End Address ISRAM end OxOAFF Size Ext I O Start Address Registers End Address Internal SRAM External Not Present Memory Size E2 size 1K bytes End Address E2 end Ox03FF EEPROM Notes 1 Byte address 2 Word 16 bit address Page 21 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 9 SCHEMATICS 9 Introduction to the chapter In this chapter are located the schematics describing logically and physically OLIMEXINO 32U4 9 1 Eagle schematic OLIMEXINO 32U4 schematic is visible for reference here You should zoom the pdf for a better view and also string search is available You can also f
11. U4 BOARD 10 3 Introduction to the cBapltger cse eco saris dera cetk eere a Db hop uoa DR IuA LUN poa Don Fern EUR Rea Co Oo Ru R OE AUR 10 m1 Bleetr stati wal Mii ooo Son a cord pe Ux C Le PLI boc SURE GOL v eit DU RD QC GUN RN Rd 10 CHAPTER 5 THE ATMEGA32U4 MICROCONTROLLER 12 5 Introduction to the Chapter ccccccsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssessssssess 12 5 1 The microcontroller s featur es sssccccccssssssssssssscssssssssssssssscscssssssssssssssscssssssssssssssssees 12 CHAPIERGCONTEOLA IBCULTD Y usi icis aciinse sacs a a tace epee RE Ua acu u SE ERR ac uEdiSuE 14 6 T trodu ction to the chapter ici iici ia saec cese ua cns aaa a aaa 14 LH LCS AF A A E E E E E E E 14 PAEA E A T E o 002000 E E E N E eo O T 14 CHAPTER 7 HARDWARE sesssssssssssceccssscccssssoceseccoseccccssscccssecccsseccoseecossseccsescsesseee 15 7 Introduction to the chapter sssssssssesesesccesecesccesecececccccececececesecececesecececececesecesescecsesecosssssesecss 15 CHAPTER 8 MEMORY AND BLOCK DIAGRAM e e ee eene nnno enano 20 8 Introduction to er adnan aaa 20 Page 3 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 9 Introduction to tlie Chapter icsis distasisneisaiasaidarcdasinarscnisiasiswcivataseietarsdsvesnsadisinblaweidansielesiuicedsiais 22 9 1 Eagle schematic
12. XLED SMD jumper Default state is closed R11 E R12 E R13 E When these jumpers are closed they enable 4 7k Ohm pull up resistors on each of the I2C lines R11 E is responsible for the resistor of SCL line R12 E for the SDA line R13 E for the UEXT CS SMD jumpers Lej Default state for all three is closed r 7 7 Additional hardware components The components below are mounted on the OLIMEXINO 32UA board but are not discussed above They are listed here for completeness General purpose button 2 general purpose LEDs 2 LEDs showing virtual port activity Note that connectors on the CON1 CON2 CONS CON4 are soldered mounted Page 19 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 8 MEMORY AND BLOCK DIAGRAM 8 Introduction to the chapter Below is located the block diagram of the processor and on the next page you can find a memory map for this family of processors It is strongly recommended to refer to the original datasheet released by Atmel for ones of higher quality Figure 2 1 Block Diagram DATA REGISTER DATA DIR pata Hd iiii DIR PORTF REG PORTF REG PORTC E B BIT DA TA BUS POR BOD RESET L MIBGXAP i COUNTER S SCILLAT WATCHDOG OSCILLATOR REGISTER PURPOSI 1 UNIT el L area INSTRUCTION TEMPERATURE Y SENSOR CONTROL LINES ON CHIP USB PAD 3V REGULATOR mm mm PAM MCU CONTROL T
13. alog Comparator Interrupt and Wake up on Pin Change On chip Temperature Sensor Special Microcontroller Features Power on Reset and Programmable Brown out Detection Internal 8 MHz Calibrated Oscillator Internal clock prescaler amp On the fly Clock Switching Int RC Ext Osc External and Internal Interrupt Sources Six Sleep Modes Idle ADC Noise Reduction Power save Power down Standby and Extended Standby I O and Package All I O combine CMOS outputs and LVTTL inputs 26 Programmable I O Lines 44 lead QFN Package 7x7mm Operating Voltages 2 7 5 5V Operating temperature Industrial 40 C to 85 C Maximum Frequency 8 MHz at 2 7V Industrial range 16 MHz at 4 5V Industrial range For comprehensive information on the microcontroller visit the Atmel web page for a datasheet At the moment of writing the microcontroller datasheet can be found at the following link http www atmel com Images doc7766 pdf Page 13 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual CHAPTER 6 CONTROL CIRCUITY 6 Introduction to the chapter Here you can find information about reset circuit power circuit and quartz crystal locations 6 1 Reset OLIMEXINO 32UA reset circuit includes R7 4 7kQ R8 330Q D1 Shottky diode ATmega32UA pin 13 RESET and a RESET button Note that it also can be found at the ICSP header pin 5 and power connector pin 1 6 2 Clock 16MHz quartz cry
14. ar pes la dad AREF 42 AREF E p M avec hango 5 r wa Ee Prfiageo AS IN CA a m pes er imagi M 1 terti o e PFHARGATCR A3 uu PEE e PR RBESTMS ap 3 s 8 EE n ru pid PFWABGSTDO A1 M 4 c IAQGTITOI 5 bi c fo o o pear Pr AOE A0 AS y SS IL LA coNs o UGND u 35 GND PCY OPSICLKO OC4AD 1 3 UEXT_ CS M DO RXD m E a oN PCROGEAROCIA D5 N DIUXD e Di a w 9e wore OTLEDU A D2SDA Se IE Eg Pers JHWB pase eal D4 Z s EE D 3 INL ps E nS z z E N Li v v De anres RED n 4 5v usa E XTAL2 Nouenn o m u alg i GALE gg Tu o ala En 7 rat Gola z Es Dagoa s 0oceiscuwm es FONTISCLK D18 SCK D LED2 Es 4 om DO RXD PT PRDFQUPCINTZMOS MOST D10 BA TENA Di Txb is eajeaePciNTMISR MISO Dn Ego a POSTXDINTS PeP E E RUE o on g er PosncpvaDcs vra ae 1 o o talcs PapeeinTSOC TA ORBE 2 INL DIS UEXT 4S os 9 Posixckers PapPGWTEIOCIBODEBADC 3 i gt B I POSIT OCAD ADCE Pap IPGINTTIOCONODIGERTS AREF i d jx a PDImTOlOCADADCIO pem AREF L 4 2 o SDA D3 SCL ATMEGASQUA AU ovec ovce w Mena mr ee ttt STAT LEDS ICSP vec DT EDI Do LED2 TXLED DI7IRXLED jas D14 MISO cse EK N of E Di5 Sci 4 2 3 OLE p2 E RED E 3 4 DI6 MOSI RESET m oP i 8p mar rst 4 1 T 8 cis cio lonr R NA Les Leb RxLED L lfoqga GREEN Lel oagaiveLLOw Lepodps YELLOW aav E pvec aav E aav E aav 2 3 2l A hs k FETS iy h BILE E q B IRLML6402 Bis vin 5v usa my POWER SUPPLY as rx gt FET3 E
15. are can be found and the official Arduino web site http www arduino cc Page 9 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 3 SETTING UP THE OLIMEXINO 32U4 BOARD 3 Introduction to the chapter This section helps you set up the OLIMEXINO 32U4 development board for the first time Please consider first the electrostatic warning to avoid damaging the board then discover the hardware and software required to operate the board The procedure to power up the board is given and a description of the default board behavior is detailed 3 1 Electrostatic warning OLIMEXINO 32U4 is shipped in a protective anti static package The board must not be exposed to high electrostatic potentials A grounding strap or similar protective device should be worn when handling the board Avoid touching the component pins or any other metallic element 3 2 Requirements In order to set up the OLIMEXINO 32UA the following items are required If using the free ARDUINO IDE the ONLY requirement is a miniUSB to USB A cable to connect to a computer If you want to upgrade the bootloader or program the board without the ARDUINO IDE there are pinouts for ICSP programmer note that there isn t a connector mounted You can use our AVR ISP MK2 or AVR ISP500 programmer for custom programming without ARDUINO IDE Having an AVR programmer is highly advisable since the bootloader software is still not perfect and it is possible to destroy it only by
16. are two scenarios since the PID product ID which is stored in the firmware and expected by the IDE is different between versions 1 0 0 and 1 0 1 1 0 1 is the first release of the Arduino IDE with official support for Leonardo 2 1 1 For purchases after the official release of Leonardo Boards produced after the official release of Arduino Leonardo have the latest bootloader available with the adjusted bootloader PID Download the latest Arduino IDE and extract the package You can find the needed driver for the bootloader located in folder drivers You click update on the device in device manager and point the installer to the drivers folder Then launch Arduino IDE and set the correct board and COM port in TOOLS menu From File gt Open navigate to the examples folder which is found in the Arduino IDE installation folder Choose a simple example to begin with like BlinkWithoutDelay ino and open it Click verify and after it compiles click Upload Voila you have uploaded code to your Arduino device Now start exploring the world of Arduino More info and help on the software can be found and the official Arduino web site http www arduino cc 2 1 2 For purchases before the official release of Leonardo If you have purchased the OLIMEXINO 32U4 before the official release of the Arduino Leonardo board there are two scenarios for using Arduino IDE 1 Download Arduino IDE 1 0 RC2 or Arduino IDE 1 0 0 When you extract the package ch
17. d 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 demonstration or evaluation purposes only and is not considered by OLIMEX to be a finished end product fit for general consumer use Persons handling the product must have electronics training and observe good engineering practice standards As such the goods being provided are not intended to be complete in terms of required design marketing and or manufacturing related protective considerations including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards Olimex currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Olimex assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein THERE IS NO WARRANTY FOR THE DESIGN MATERIALS AND THE COMPONENTS USED TO CREATE OLIMEXINO 32U4 THEY ARE CONSIDERED SUITABLE ONLY FOR OLIMEXINO 32U4 Page 2 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual Table of Contents CHAPTER 3 SETTING UP THE OLIMEXINO 32
18. e board has a built in charger circuit so when the main power supply is restored the battery would get recharged automatically sa uere 3 je 7 2 ICSP pin holes The 6 pin ICSP header provides interface for custom programming debugging outside of the Arduino IDE Note the pin holes doesn t have a connector mounted over you have to mount it solder it yourself The pinout can be found in the table below It is important to check the jumper configuration for proper use of the ICSP pin hole ICSP pin holes D14 MISO D16 MOSI Ta sc Page 15 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual 7 3 UEXT OLIMEXINO 32UA board has UEXT connector and can interface Olimex s UEXT modules For more information on our UEXT modules please visit https www olimex com Products Modules UEXT La 3 mem eem s een s pue L sees 9 seo i It is important to note that there are 4 7k pull up resistors on the I2C lines SCL SDA D3 and D2 respectively You can disconnect disable the resistors by cutting between the pads of the small SMT jumpers R11 E and R12 FE The chip select pin CS D13 also has a 4 7k pull up resistor which might be disabled by cutting R13 E Page 16 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 7 4 Arduino shield pin holes For your convenience the pads are named individually near each of them Pl
19. ease take extra care about the numbering but consider that there might be offset O e pmo CO u romeo CO e esmxsme CO e pman ow ms as jmemxs D1 TXD PD3 TXD1 INT3 D9 LED2 PBS POINS OCTA SOCABI ADC12 mm mo PB6 PCINT6 0C1B 0C4B ADC PDO OCOB SCL PB7 PCINT7 OCOA OC1C pA PD4 ICP1 ADC8 PD6 T1 0C4D ADC9 PC6 0C3A ow OC4A D13 UEXT_ CS PC7 ICP3 CLK OC4A PD7 T OC4D A DC10 D7 LED1 INT6 AIN PE6 Page 17 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual 7 5 USB mini connector Note that the USB is configured only as device Signal Name E EN Not connected feo 7 6 Jumper description 3 3V 5V This jumper controls whether the board is powered by 3 3Vdc source or 5Vdc Default position is 2 3 5Vdc 1 2 3 AGND E When closed enables analog GND SMD jumper Default state is closed FET3 E When closed connects D8 from Arduino shield connector to FET3 so you can control the power on the UEXT by software means When open D8 becomes GPIO This is a SMD type of jumper Default state is closed fo Page 18 of 28 OLIMEXO 2015 OLIMEXINO 32UA user s manual LED1 E When closed enables LED1 SMD jumper Default state is closed LED2 E When closed enables LED2 SMD jumper tem Default state is closed NW RXLED E When closed enables RXLED SMD jumper rem Default state is closed TXLED E When closed enables T
20. eck if the Arduino Leonardo section is the hardware arduino boards is uncommented If the section has number signs infront remove the number signs 2 If you want to use the latest version which by the time of writing is 1 0 1 you would need to change to bootloader firmware This will require an AVR programmer tool You can get the bootloader in elf format from our web site You can also use the original bootloader hex if you set the fuses and lock bits for the processor as follows low_fuses Oxff high fuses 0xd8 extended fuses Oxcb lock bits choose SPM Prohibited in Boot Section from the drop down menu which will set the bits either to EF or 2F After you have downloaded and extracted the desired IDE you need to install the driver for your operating system You can find the needed driver for the bootloader located in folder drivers You click update on the device in device manager and point the installer to the drivers folder Then launch Arduino IDE and set the correct board and COM port in TOOLS menu Page 8 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual From File gt Open navigate to the examples folder which is found in the Arduino IDE installation folder Choose a simple example to begin with like BlinkWithoutDelay ino and open it Click verify and after it compiles click Upload Voila you have uploaded code to your Arduino device Now start exploring the world of Arduino More info and help on the softw
21. ects easily accessible The hardware consists of a simple open hardware design for the Arduino board with an Atmel AVR processor and on board I O support The software consists of a standard programming language and the boot loader that runs on the board Arduino hardware is programmed using a Wiring based language syntax libraries similar to C with some simplifications and modifications and a Processing based Integrated Development Environment IDE The project began in Ivrea Italy in 2005 aiming to make a device for controlling student built interaction design projects less expensively than other prototyping systems available at the time As of February 2010 more than 120 000 Arduino boards had been shipped Founders Massimo Banzi and David Cuartielles named the project after a local bar named Arduino The name is an Italian masculine first name meaning strong friend The English pronunciation is Hardwin a namesake of Arduino of Ivrea More information could be found at the creators web page http arduino cc and in the Arduino Wiki http en wikipedia org wiki Arduino To make the story short Arduino is easy for beginners who lack Electronics knowledge but also does not restrict professionals as they can program it in C or mix of Arduino C language There are thousands of projects which makes it easy to startup as there is barely no field where Arduino enthusiasts to have not been already Arduino has inspired two other
22. es up to 12 Mbit s and 1 5 Mbit s Endpoint 0 for Control Transfers up to 64 bytes 6 Programmable Endpoints with IN or Out Directions and with Bulk Interrupt or Isochronous Transfers Configurable Endpoints size up to 256 bytes in double bank mode Fully independent 832 bytes USB DPRAM for endpoint memory allocation Suspend Resume Interrupts CPU Reset possible on USB Bus Reset detection 48 MHz from PLL for Full speed Bus Operation USB Bus Connection Disconnection on Microcontroller Request Crystal less operation for Low Speed mode Peripheral Features Page 12 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual On chip PLL for USB and High Speed Timer 32 up to 96 MHz operation One 8 bit Timer Counter with Separate Prescaler and Compare Mode Two 16 bit Timer Counter with Separate Prescaler Compare and Capture Mode One 10 bit High Speed Timer Counter with PLL 64 MHz and Compare Mode Four 8 bit PWM Channels Four PWM Channels with Programmable Resolution from 2 to 16 Bits Six PWM Channels for High Speed Operation with Programmable Resolution from 2 to 11 Bits Output Compare Modulator 12 channels 10 bit ADC features Differential Channels with Programmable Gain Programmable Serial USART with Hardware Flow Control Master Slave SPI Serial Interface Byte Oriented 2 wire Serial Interface Programmable Watchdog Timer with Separate On chip Oscillator On chip An
23. ind a stand alone pdf on the web page for OLIMEXINO 32U4 at our site https www olimex com Products Duino AVR OLIMEXINO 32U4 They are located in HARDWARE section This work is licensed under the Creative Commons Attribution ShareAlike 3 0 Unported License To view a copy of this license visit http creativecommons org licenses by sa 3 0 The EAGLE schematic is situated below for quicker reference Page 22 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual A B E D E F E H OLIMEXINO 32U4 Rev A3 cs cont PLATFORMI Designed by OLIMEX LTD BULGARIA MES Ep a r 2 o ava Web address https www OLIMEX com m Ler E o av E ha na T oo B avec pice 5v usa ui o GND E RESET ving ot VN 3 Pas
24. ons and the SD card example works with these settings m Swapped D14 with D17 this affects ICSP and UEXT A3 Page 26 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 10 3 Web page of your device The web page you can visit for more info on your device is https www olimex com Products Duino AVR OLIMEXINO 32U4 There you can find more info and some examples Web page of the original Arduino and Arduino software http arduino cc en ORDER CODES OLIMEXINO 32U4 completely assembled and tested USB MINI CABLE USB mini to USB A cable How to order You can order directly from our web shop or by any of our distributors Please check the list of distributors https www olimex com Distributors Check our web site https www olimex com for more info Page 27 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual 10 4 Warranty and returns For product support hardware information and error reports mail to support olimex com All document or hardware feedback is welcome Note that we are primarily a hardware company and our software support is limited Please consider reading the paragraph below about the warranty of Olimex products All goods are checked before they are sent out In the unlikely event that goods are faulty they must be returned to OLIMEX at the address listed on your order invoice OLIMEX will not accept goods that have clearly been used more than the amount needed to evaluate their functionality
25. ose your PO Also include a brief letter of explanation of why the merchandise is being returned and state your request for either a refund or an exchange Include the authorization number on this letter and on the outside of the shipping box Please note It is your responsibility to ensure that returned goods reach us Please use a reliable form of shipping If we do not receive your package we will not be held liable Shipping and handling charges are not refundable We are not responsible for any shipping charges of merchandise being returned to us or returning working items to you The full text might be found at https www olimex com wiki GTC Warranty for future reference Page 28 of 28
26. re oa 2 ACE d OLIMEXINO 32U4 development board USER S MANUAL Revision G January 2015 Designed by OLIMEX Ltd 2013 lead free All boards produced by Olimex LTD are ROHS compliant OLIMEXO 2015 OLIMEXINO 32U4 user s manual 2015 Olimex Ltd Olimex logo and combinations thereof are registered trademarks of Olimex Ltd Other product names may be trademarks of others and the rights belong to their respective owners The information in this document is provided in connection with Olimex products No license express or implied or otherwise to any intellectual property right is granted by this document or in connection with the sale of Olimex products This work is licensed under the Creative Commons Attribution ShareAlike 3 0 Unported License To view a copy of this license visit http www creativecommons org licenses by sa 3 0 This hardware design by Olimex LTD is licensed under a Creative Commons Attribution ShareAlike 3 0 Unported License The software is released under GPL It is possible that the pictures in this manual differ from the latest revision of the board The product described in this document is subject to continuous development and improvements All particulars of the product and its use contained in this document are given by OLIMEX in good faith However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are exclude
27. stal Q1 is found at pins 16 and 17 of the processor By default OLIMEXINO 32UA operates at 5V which allows the main microcontroller ATmega32u4 to operate properly at the maximum clock speed 16 MHz The ATmega32u4 would work properly at 16MHz only if powered by at least 4 5V If you decide to change the position of the jumper 3 3V 5V jumper to 3 3V position please note that at 3 3V the maximum frequency that can be achieved with ATmega32u4 is around 10MHz thus the 16MHz operation is a significant overclock Yet our tests proved that the board works reliably with a 16MHz qaurtz even at 3 3V IMPORTANT If the board has a quartz crystal rotated at 45 degrees relative to the pads provided do not panic This is normal We have two types of such crystals one of them requires 4 pads the other only 2 pads That is why we have provided 4 pads to be able to fit both crystals All boards Olimex manufactures pass automatized optical inspection after assembly and obvious misplacement like this is impossible to occur Page 14 of 28 OLIMEXO 2015 OLIMEXINO 32U4 user s manual CHAPTER 7 HARDWARE 7 Introduction to the chapter In this chapter are presented the connectors that can be found on the board all together with their pinout Jumpers functions are described Notes and info on specific peripherals are presented Notes regarding the interfaces are given 7 1 Battery connector The battery connector is suitable for 3 7V LiPo batteries Th
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