DSONANO V2MANUAL V0.91B
Contents
1. WWW SEEEDSTUDIO COM WY Seeed Studio Works OSSS Tech Support info seeedi com DSO NANO V2 MANUAL VO 91B 5 31 2011 Original Design Chai Xiaoguang Documentation Eric Pan Page 1 of 10 10 4 2011 WWW SEEEDSTUDIO COM Tech Support info seeedi com KY Seeed Studio Works INTRO DSO Nano v2 is a Digital Storage Oscilloscope designed for basic electronic engineering tasks Within its smart shell the device runs on ARM Cortex M3 32 bit platform provides basic waveform monitoring with extensive functions It is equipped with 320 240 color LCD micro SD card storage portable probes LiPo Battery USB connection and signal generator Due to palm size and handy performance it fits in field diagnosis quick measurement hobbyist projects and wherever convenience matters Scheme and source files are also open for re innovating FEATURES Portable and lightweight Color display Waveform storage and playback 6 triggering mode 200Khz Analog Bandwidth Abundant measurement markers and signal info Built in Signal Generator Extra accessories available Open Source and community based Page 2 of 10 10 4 2011 WWW SEEEDSTUDIO COM WY Seeed Studio Works OSSS Tech Support info seeedi com Specification Full Color 2 8 TFT LCD 65K 320x240 0 200KHz IMsps 12Bits hackable to 2Msps 4096 Point luS Div 10S Div Display Analog bandwidth Max sample rate Sample memory depth Horizontal sensitivity Ho2. ENERATOR The 3 5mm audio jack under mini USB port is used for signal generator it outputs 10Hz 1MHz square wave Frequency could be adjusted via Fo The peak voltage is the same as supplied power approximately 3 7v if powered from battery and 5v powered by USB POWER SUPPLY DSO Nano could be powered by internal 500mAh LiPo battery or external mini USB port charging takes about 2 hour 20 min to reach 4 12V A fresh unit could only run about 1 hour by battery battery life will be extended after the LiPo fully activated DSO Nano v2 Charging Chart XminY battery voltage 5 4 Fd 5 Lai r P ium P un u LUI 0 20 40 bt BO 100 120 140 160 UPDATE FIRMWARE It s easy to upgrade firmware with USB boot loader 1 Download DfuSe USB Device Firmware Upgrade from http www st com internet com SOFTWARE RESOURCES SW_COMPONENT SW_ DEMO um0412 zip and install Instruction is available at http www st com mcu familiesdocs 110 html Application 20Note 2 Connect Oscilloscope with PC press and hold BA switch on power until oscilloscope displays Please Connect to USB Host DS0201 Device Firmware Upgrade Ver 1 0 When PC connection is detected Firmware Upgrading Please Wait Page 8 of 10 10 4 2011 i WWW SEEEDSTUDIO COM WY Seeed Studio Works GQ Tech Support info seeedi com 3 Run Dfuse Demo on PC check 1 select firmware to be uploaded e g DS0201_FW_V2 00 DFU at 2 Firmware
3. OOM TO YOUR SIGNALS Move cursor to Vertical Scale and Time Base could be a start to signal Vertical Scale explorations Press up down button to adjust voltage div or time div Y Position Jode Time Base Au Each div means a grid unit of the screen count div could give you a e quick measurement Vertical scale ranges from 10mV div to 10V div PS SCC AE Time base ranges from 1uS div to 10S div Beware that in larger time base display would look freezing since gi under 10S div it takes 120 seconds to refresh whole screen The waveform might be out of the display in the comfortable voltage div You could change the Y position to move the waveform up and down The Y position marker indicates OV for your reference Press button A to freeze current display status HOLD and press again to resume refreshing status RUN When status is hold you can move cursors to TO and press up down button to pan back and forth Press OK button to display or hide X position marker a yellow dotted vertical line Page 5 of 10 10 4 2011 WWW SEEEDSTUDIO COM WY Seeed Studio Works OSSS Tech Support info seeedi com TRIGGERING MODE AUTO Always refresh display synchronize when triggered NORM al Display synchronized waveform when triggered blank if not triggering SING le Display triggered waveform and hold blank before triggering SCAN Repeatedly sweep waveform from screen left to right NONE
4. Refresh unsynchronized waveform ignoring triggering FIT Automatically adjust vertical and horizontal scale to display waveform per human favor Display Waveform Example Application General use Triggered Only watch periodic signals Comparison table of the triggering modes Auto adjust To set the triggering level move cursor to Vt mV and press up down button You t c00 ni Ut 600_mU may press OK button to display the trigger level marker horizontal green dotted lines To Trigger Level Trigger Sensitivity Trigger Type This could prevent mistaken triggering caused by noises especially while measuring fast low amplitude fine tune triggering you may tweak trigger sensitivity TR and trigger slope By default trigger type is setto tS which means only the signal rises from lower trigger level marker to higher level marker the signal syncs _ S means vice versa signals If you set sensitivity to 0 where the two trigger level markers overlap each other you get level triggering Please refer to al mighty Wikipedia for more info and tutorial on oscilloscope triggering Page 6 of 10 10 4 2011 WWW SEEEDSTUDIO COM W Seeed Studio Works OSSS Tech Support info seeedi com p MEASUREMENT Auto measure FREON Time marker 1 Time marker 2 JEZERU Does Time measure marker T2 Time measure maker T1 Auto measurement could be a quick tool to look at the signal characteristics Measurement i
5. item will be highlighted corresponding screen element will blink press UP Down buttons to adjust OK button could control display hide markers or confirm operations Pressing A Run Stop Button once will freeze current display press again to resume B Shift Button is used for quick functions In future texts adjustable items will be underlined Page 4 of 10 10 4 2011 WWW SEEEDSTUDIO COM WY Seeed Studio Works OSSS Tech Support info seeedi com Vertical Scale Y Position Battery Status Jser Interface Menu Sync Mode Time Base Auto measure a SE CS A Explanation Display Area ME CST SS aS Be E Trigger Sensitivity Trigger Type Probe attenuation scale Voltage marker V1 Current Waveform Save waveform Trigger level marker Load waveform Reference Waveform Ref square wave freq Y position marker Time marker 1 Time marker 2 Voltage marker V2 7 4 i Horizontal position adj Index bar CS Te PES EU Fonctions Tigger Level Volkageimeciure fimemecure Statis Satus bar Time measure marker T2 Time measure maker T1 Waveform amp Markers USER INTERFACE INTRO The screen is consisted of display area and 3 operation bars around it Menu is on the top providing most frequent adjustment to display signals Status bars on the bottom provides precise measurement result and monitoring status More functions could be adjusted through the column of function Keys on the right Z
6. rizontal position adjustable with indicator Vertical sensitivity 10mV Div 10V Div with x1 probe 0 5V Div 100V Div with x10 probe Vertical position adjustable with indicator gt 500KQ 80Vpp by x1 probe Input impedance Max input voltage Coupling DCs Trig modes Auto Normal Single None Scan and Fit Rising Falling edge level trigger Trig level adjustable with indicator Auto measurement frequency cycle time duty cycle Trig sensitivity adjustable with indicator Waveform Functions peak voltage RMS voltage Average voltage and DC voltage Precise vertical measurement with markers Precise horizontal measurement with markers Hold Run Signal Generator 10Hz 1MHz square wave Waveform storage Micro SD card PC connection via USB as SD card reader Upgrade Power supply 500mAh 3 7V Lithium battery USB Dimension w o probe 95mm 62mm 13mm Weight 76 gram Software related specifications are based on v2 4 firmware Page 3 of 10 10 4 2011 i WWW SEEEDSTUDIO COM W Seeed Studio Works Tech Support info seeedi com INSTRUCTIONS STRUCTURE TF card slot 2 8 TFT LCD w protective screen String Hanger 22 Probe Jack 3 5mm Audio Jack compatible Mini USB port Signal Generator Menu Counter Clockwise 3 5mm Audio Jack compatible Back Shell Quick Adjust Run Stop BASIC OPERATION Left Right buttons are mainly used to navigate through menu items Selected menu
7. structure APP Application firmware Basic usage and reference for user modification kept as simple as possible LIB Library firmware contains libraries for hardware operation upgrade periodically Bootloader contains basic hardware parameter and serial number Pre programmed during manufacturing to enable DFU mode upgrading via USB port Please note that both APP firmware and LIB firmware dfu files needs to be programmed while upgrading F Ear sE 0 KB By tes da ide ur pation n R aa c oh sete E X ke ax 4 Inthe next screen press 1 Upgrade when upgrade finishes successfully status bar will notify 2 Page 9 of 10 10 4 2011 WWW SEEEDSTUDIO COM Tech Support info seeedi com DftuSe Demo v2 2 Availsble DFU and compatible WID Devices ee pe ih Device in DEU Mode Ey Application Mode DFU Mode ay Vendor Vendor Ka Supports Nani festation C Supports Accelerated Upload Procuct FProcueg DFLI Can Version Version DILA Actions Belact Tere ane Available Sectors Double Cli 1 Internal Flash 126 xectors 0i SPI Flash SPRS 126 sectors Upload Action Upgrade or Verify Action Fil File BSOSiT y jian dfu Vendar 0463 Targets in Fr 0 SE Choose Spies Procuct 0000 Transfered data size Version 000D 7 1 35 KECSSESD Bytes of 35 BB 35560 Bytes 2 V Verify after dovrd Optinize Upgrade duration o
8. tems include frequency cycle time duty cycle peak voltage RMS voltage Average voltage and DC voltage Please note that frequency cycle time and duty cycle could only be measured while triggering To get a more precise measurement you may use measurement markers T2 and T1 control time markers which are two vertical dotted lines A precise time difference between two marker positions is displayed on time measure near bottom of the screen V1 marker and V2 marker could be adjusted directly from the voltage measure result V1 V2 V All marker lines could be switched display or hide by pressing OK button in corresponding menu item 1 Make sure your SDcard supports SPI mode Most SDHC and over 2GB card does not 2 Format your SDcard with FAT16 3 Create a new file named FILEXXX DAT in your SDcard root file size must bigger than 1KB Or directly download from http dso seeedstudio com and copy it into SD card root WAVEFORM STORAGE Save waveform Waveform could be saved to TF card or load to display You would need a small micro SD card to do this Please note SDHC card high speed card larger than 2 GB Load waveform is not supported for now Follow below steps When the micro SD card is prepared FS and FL are enabled Press OK button on FS to save waveform or on FL to load waveform from micro SD card Page 7 of 10 10 4 2011 WWW SEEEDSTUDIO COM WY Seeed Studio Works OSSS Tech Support info seeedi com SIGNAL G
9. ve Sone Tine duration 5 Shut down and reactivate power to use new firmware MADE WITH COMMUNITY Please visit our forum for prompt tech support and usage discussion http www seeedstudio com forum viewforum php f 12 Latest firmware schematic and development documentations could be found at http code google com p dsonano Thanks for inputs from our user we could provide better Nano v2 revision and future models http www seeedstudio com forum viewtopic php f 12 amp t 676 CHANGE LOG 2011 SEEED STUDIO Page 10 of 10 10 4 2011
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