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stm-h103 development board u ser ' s m anual rev. b , march 20 14 copyright(c) 20 14 , olimex ltd, all rights reserved page 1 of 18
introduction: STM32-H103 board is an entry level development board for the new arm cortex m3 family of devices produced by st microelectronics inc. with STM32-H103 you can explore the features of stm32 family on budged, the board have everything necessary to build simple applications: usb port where power is taken and power supply circuit, reset and oscillator circuits, jtag port for programming and debugging, two status leds and user button. although a very simple board, it is sufficient to easily build usb application like pc mouse, usb mass storage device, usb audio class device, usb to virtual rs232 port. there are plenty of gpios on extension headers where you can connect your additional circuits. board features: - cpu: stm32f103rbt6 arm 32 bit cortex m3? - jtag connector with arm 2x10 pin layout for programming / debugging with arm- jtag , arm-usb-ocd, arm-usb-tiny - usb connector - user button - reset button - status led - power supply led - on board voltage regulator 3.3v with up to 800ma current - single power supply: takes power from usb port or extension connector pin - 8 mhz crystal oscillator - 32768 hz crystal and rtc backup battery connector - extension headers for all uc ports - pcb: fr-4, 1.5 mm (0,062"), soldermask, silkscreen component print - dimensions: 61x 34mm (2.4 x 1.3") - distance between the extension connectors: 25.4 mm (1") electrostatic warning: the STM32-H103 board is shipped in protective anti-static packaging. the board must not be subject to high electrostatic potentials. general practice for working with static sensitive devices should be applied when working with this board. board use requirements: cables: 1.8 meter usb a-b cable to connect to usb host. hardware: arm-jtag, arm-usb-ocd, arm-usb-tiny or other arm jtag compatible tool software: arm c compiler and debugger software, the possible options are: - free open source platform: gnu c compiler + openocd and eclipse (support all low cost olimex jtag debuggers) - commercial solution ew-arm from iar systems ab, require expensive j-link debugger - crossworks from rowley (supports all olimex low cost jtag debuggers). page 2 of 18
board layout: page 3 of 18
schematic : please note that the schematic suits two boards STM32-H103 and smt32-h405. there is a slight variation mentioned over the microcontroller. page 4 of 18
processor features: stm-h103 board use arm 32-bit cortex?-m3 cpu stm32f103rbt6 from st microelectronics with these features: - cpu clock up to 72mhz - flash 128kb - ram 20kb - dma x7 channels - rtc - wdt - timers x3+1 - spi x2 - i2c x2 - usart x3 - usb x1 - can x1 (multiplexed with usb so both can't be used in same time) - gpio up to 51 (multiplexed with peripherials) - 2 adc 12-bit - operating voltage 2.0-3.6v - temperature -40c +85c page 5 of 18
page 6 of 18
memory map: page 7 of 18
power supply circuit: STM32-H103 can take power from two sources: - usb connector where 5v power supply is applied by usb host - vin input in extension pin ext2.26 where +5-9v may be applied the board power consumption is: about 40 ma with all peripherials and mcu running at full speed, there are different power saving modes which may put stm32f103rbt6 in power sleep mode and in these modes the consumption of the mcu is only few micro ampers. reset circuit: STM32-H103 reset circuit is made with rc group r8 - 10k and c19 - 100nf. although on the schematic is made provision for external reset ic such is not necessary as stm32 have build-in brown out detector. manual reset is possible by the reset button. clock circuit: quartz crystal 8mhz is connected to stm32f103rbt6. internal pll circuit can multiply this frequency up to 72mhz. 32.768 khz quartz crystal is connected to stm32f103rbt6 for its internal real time clock. page 8 of 18
external connector description: extension 1 pin # signal name pin # signal name 1 pa11/usbdm/canrx 2 pa8 3 pa12/usbdp/cantx 4 pa9/uart1.tx 5 +3.3v out 6 gnd 7 pa10/uart1.rx 8 pc10 9 pc11/usbpull 10 pc12/led 11 pd2 12 pb5/i2c1.smba 13 pb6/i2c.scl 14 pa6/spi1.miso 15 pb7/i2c.sda 16 pb8 17 pb9 18 pa5/spi1.sck 19 pc0 20 pc1 21 pb0 22 pa7/spi1.mosi 23 vbat 24 pc13 25 rst 26 pb1 page 9 of 18 1 25 2 26
extension 2 pin # signal name pin # signal name 1 vdda 2 pc2 3 gnda 4 pa0/but 5 3.3v 6 gnd 7 pa2/uart2.tx 8 pa1 9 pc3 10 pa3/uart2.rx 11 pa4/spi1.nss 12 pc4/usb-p 13 pc5 14 pb10/uart3.tx 15 p11/uart3.rx 16 pb13/spi2.sck 17 pb12/spi2.nss/i2c.smba 18 pb14/spi2.miso 19 pb15/spi2.mosi 20 pc6 21 pc7 22 pc8 23 +5v usb 24 pc9 25 gnd 26 vin page 10 of 18 1 25 2 26
jumper description: r-t connects jtag trst signal to stm32f103rbt6 reset default state closed (shorted) vbat connects 3.3v to stm32f103rbt6 vbat pin.1 default state closed (shorten) , vbat signal is also available to ext1-23, so if you want to connect external backup battery to the stm32f103rbt6 this jumper should be opened (unshorted) and the external battery to be connected to ext1-23 pin. usbp-e connects usb power supply to stm32f103rbt6 pin.24 pc4/adc14 and allow to detect if the board is connected to usb host. default state closed (shorten) led-e connects status led to stm32f103rbt6 pin.53 pc12 default state closed (shorten) boot0, boot1 boot sequence select b1_h/b1_l (boot1_high/boot1_low) b0_h/b0_l (boot0_high/boot0_low) default position: boot1 is log. 0 boot0 is log. 0 page 11 of 18
input/output: user button with name but C connected to stm32f103rbt6 pin.14 pa0.wkup; status green led with name stat connected to stm32f103rbt6 pin.53 pc12, note that led-e smt jumper should be shorted to may led work properly (its shorted by default), if you decide to use pc12 port for other purpose you have to remove the solder short on this jumper which will disconnect the led from pc12 port; power supply red led with name pwr C indicates that 3.3v power supply is applied; jtag: the jtag connector allows the software debugger to talk via a jtag (joint test action group) port directly to the core. instructions may be inserted and executed by the core thus allowing stm32f103rbt6 memory to be programmed with code and executed step by step by the host software. for more details refer to ieee standard 1149.1 - 1990 standard test access port and boundary scan architecture and stm32f103rbt6 datasheets and users manual. jtag connector pin descriptions pin # signal name pin # signal name 1 tvcc 3.3v 2 tvcc 3.3v 3 trst 4 gnd 5 tdi 6 gnd 7 tms 8 gnd 9 tck 10 gnd 11 nc 12 gnd 13 tdo 14 gnd 15 rst 16 gnd 17 nc 18 gnd 19 nc 20 gnd tms input test mode select. the tms pin selects the next state in the tap state machine. tck input test clock. this allows shifting of the data in, on the tms and tdi pins. it is a positive edgetriggered clock with the tms and tck signals that define the internal state of the device. tdi input test data in. this is the serial data input for the shift register. tdo output test data output. this is the serial data output from the shift register. data is shifted out of the device on the negative edge of the tck signal. trst input test reset. the trst pin can be used to reset the test logic within the embeddedice logic. page 12 of 18
rs232: stm32f103rbt6 have 3 usarts which are available on the extension headers. one of them can operate up to 4.5 mbit/s, the other two up to 2.25 mbit/s. they provide hardware management of the cts and rts signals, irda sir endec support, are iso 7816 compliant and have lin master/slave capability. all usart interfaces can be served by the dma controller. usart1.tx C pin.42 pa9 ext1-4 usart1.rx C pin.43 pa10 ext1-7 usart2.tx C pin.16 pa2 ext2-7 usart2.rx C pin.17 pa3 ext2-10 usart3.tx C pin.29 pb10 ext2-14 usart3.rx C pin.30 pb11 ext2-15 spi: stm32f103rbt6 have 2 spis which able to communicate up to 18 mbits/s in slave and master modes in fullduplex and simplex communication modes. the 3-bit prescaler gives 8 master mode frequencies and the frame is configurable from 8-bit to 16-bit. the hardware crc generation/verification supports basic sd card/mmc modes. both spis can be served by the dma controller. spi1.nss C pin.20 pa4 ext2-11 spi1.sck C pin.21 pa5 ext1-18 spi1.miso C pin.22 pa6 ext1-14 spi1.mosi C pin.23 pa7 ext1-22 spi2.nss C pin. pb12 spi2.sck C pin. pb13 spi2.miso C pin. pb14 spi2.mosi C pin. pb15 i2c: stm32f103rbt6 have two i2c bus interfaces which can operate in multi-master and slave modes. they can support standard and fast modes. they support dual slave addressing (7-bit only) and both 7/10-bit addressing in master mode. a hardware crc generation/verification is embedded. they can be served by dma and they support sm bus 2.0/pm bus. i2c1.sda C pin.59 pb7 ext1-15 i2c1.scl C pin.58 pb6 ext1-13 i2c1.smba C pin.57 pb5 ext1-12 i2c2.sda C pin.30 pb11 ext2-15 i2c2.scl C pin. 29 pb10 ext2-14 i2c2.smba C pin.33 pb12 ext2-17 page 13 of 18
can: the stm32f103rbt6 can is compliant with specifications 2.0a and b (active) with a bit rate up to 1 mbit/s. it can receive and transmit standard frames with 11-bit identifiers as well as extended frames with 29-bit identifiers. it has three transmit mailboxes, two receive fifos with 3 stages and 14 scalable filter banks. the can and usb share same pins pa11/ext1-1 and pa12/ext1-3, so you cant use both can and usb on same time. usb: the stm32f103rbt6 embeds a usb device peripheral compatible with the usb full- speed 12 mbs. the usb interface implements a full speed (12 mbit/s) function interface. it has software configurable endpoint setting and suspend/resume support. the dedicated 48 mhz clock source is generated from the internal main pll. the can and usb share same pins pa11/ext1-1 and pa12/ext1-3, so you cant use both can and usb on same time. adc: stm32f103rbt6 have two 12-bit analog to digital converters which share up to 16 external channels, performing conversions in singleshot or scan modes. in scan mode, automatic conversion is performed on a selected group of analog inputs. additional logic functions embedded in the adc interface allow: - simultaneous sample and hold - interleaved sample and hold - single shunt the adc can be served by the dma controller. an analog watchdog feature allows very precise monitoring of the converted voltage of one, some or all selected channels. an interrupt is generated when the converted voltage is outside the programmed thresholds. the events generated by the standard timers (timx) and the advanced control timer (tim1) can be internally connected to the adc start trigger, injection trigger, and dma trigger respectively, to allow the application to synchronize a/d conversion and timers. page 14 of 18
mechanical dimensions: page 15 of 18
available demo software: demo1. blinking led for ew-arm 5.11 blinks the on-board led. demo2. usb mouse for ew-arm 5.11 creates usb mouse and when board is connected to pc it starts moving the mouse cursor in circle. demo3. blinking led for gcc+openocd+eclipse blinks the on-board led. page 16 of 18
order code: STM32-H103 C assembled and tested (no kit, no soldering required) how to order? you can order to us directly or by any of our distributors. please visit o ur web site www.olimex.com for more info. all boards manufactured by olimex ltd are rohs compliant document r evision history: rev.a - create d february 2008 rev.b - updated march 2014 remember to check the schematics and the board design files to compare the differences. document r evision history: board rev. a 1. replaced boot jumpers from 2-pin package to 3-pin package 2. connected vusb to pc4(adc14) through ladder 3. change bh to reiki board rev. b 1. r3 now changed from 10k to 47k 2. added d2 so the board cab be powered from jtag pin #19 3. c8 gets changed from 100nf to 4.7uf/6.3v according to the datasheet board rev. c 1. added c20 and c23 capacitors on processor pins 31 and 47 which change whether you have STM32-H103 or stm32-h405 board if there stm32f103rbt6(lqfp64) c20 and c23 would be 0 ohm resistors if there stm32f103rbt6(lqfp64) c20 and c23 would 2.2uf/6.3v be resistors 2. c11 ot 10uf/6.3v is now 10uf/10v 3. c8 ot 4.7uf/6.3v is now 10uf/10v 4. c3 ot 47uf/6.3 becomes 22uf/6.3v parallel to it we add c24 22uf/6.3v 5. all resistors, capacitors and the led diodes are now in 0603 package 6. the vbat, usbp_e, led_e are now closed by default 7. r16 bow becomes 0r(board_mounted) page 17 of 18
disclaimer : ? 20 14 olimex ltd. all rights reserved. olimex?, logo and combinations thereof, are registered trademarks of olimex ltd. other terms and product names may be trademarks of others. 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. neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder. 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 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. page 18 of 18

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