Difference between revisions of "Upd 219 imu"

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*[[PF Top Nav]]; [[Upd_pcb | PCB]]; [[Aiw_hardware | Hardware]]; [[AIW_assembly | Assembly]]  [[PFMENU DOCS | PFCmdMenu]]  [[iochan]]
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{{pf_top_nav}}
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*PCA : [[Upd_2x0_218_controller | SC/MC 218]] [[Upd_2x0_217_power_board| FET 217]] [[Upd_219_imu | IMU219]] [[Wip4a-spi | Swiffy]] [[Rev200_mods]] 
 
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*PFCMD : [[PFMENU_DOCS | SC]]; [[PFMENU_DOCS_MC | MC]]; [[PFCMD_PY]];  [[Pf_calb_table_py]]; [[Virtual spring test]]; [[PF1_Code_History]]; [[PF EEPROM]]
 
  
  
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=datasheets=
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<br>
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*[http://focus.ti.com/lit/ds/symlink/tps79301.pdf PDF TPS79330 U9]
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[[PFMENU DOCS]] [[Aiw_hardware]] [[iochan]] [[AIW_assembly]]
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*[http://focus.ti.com/lit/ds/symlink/tps60240.pdf PDF TPS60241  U6]
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*[http://ww1.microchip.com/downloads/en/DeviceDoc/70292C.pdf PDF dsPIC GP804] will use watchdog to wake from sleep mode.  Sec 6.5 PDF pg 83.  ASM("PWRSAV #SLEEP_MODE") sec 10.1
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*[http://ww1.microchip.com/downloads/en/DeviceDoc/21733h.pdf PDF MCP6004]
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*[http://www.freescale.com/files/sensors/doc/data_sheet/MMA7360L.pdf PDF for MMA7360]
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*[http://www.sparkfun.com/commerce/product_info.php?products_id=9251 ADXRS610] [http://www.sparkfun.com/datasheets/Sensors/ADXRS610.pdf PDF]
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*[http://www.sparkfun.com/commerce/product_info.php?products_id=308 MMA7260] [http://www.sparkfun.com/datasheets/Accelerometers/MMA7260Q-Rev1.pdf PDF]
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*[http://www.sparkfun.com/commerce/product_info.php?products_id=700 IDG300] [http://www.sparkfun.com/datasheets/Components/IDG-300_Datasheet.pdf PDF]
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*[http://www.sparkfun.com/commerce/product_info.php?products_id=9070 IDC500] [http://www.sparkfun.com/datasheets/Components/SMD/Datasheet_IDG500.pdf PDF]
  
 
=ECOs=
 
=ECOs=
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==1==
 
==1==
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*7-13-09 : change R43 to 1.0meg
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*7-13-09 : changed R43 to 1.0meg
 
*7-3-09 : location IW.  reprogram with firmware that supports command 2020
 
*7-3-09 : location IW.  reprogram with firmware that supports command 2020
 
*6-26-09 : location CEB lab
 
*6-26-09 : location CEB lab
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==2==
 
==2==
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*7-13-09 : change R43 to 1.0meg
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*10-14-09 : discovered that R23 had a cold solder join
 +
*10-13-09 : discovered dead on ankle.  no flashing light.  probably over voltage event.
 +
*10-12-09 : installed latest firmware.
 +
*7-13-09 : changed R43 to 1.0meg
 +
*7-10-09 : switcher replaced.
 
*7-2-09 : IMU#2 - doesn't power with either of 2 cables.  probably due to review polarity cable - probably needs new switcher.
 
*7-2-09 : IMU#2 - doesn't power with either of 2 cables.  probably due to review polarity cable - probably needs new switcher.
 
*6-23-09 : seems to be working with 'blue' cable w/red and black marks on connector
 
*6-23-09 : seems to be working with 'blue' cable w/red and black marks on connector
 
*1-24-09 : was able to erase and reprogram.
 
*1-24-09 : was able to erase and reprogram.
 
*1-24-09 : system is getting 3.3V w/push button - however, unable to program over protected segments
 
*1-24-09 : system is getting 3.3V w/push button - however, unable to program over protected segments
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===todo===
 
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*diagnose problem, probably replace Vin switcher
 
  
 
==3==
 
==3==
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*7-13-09 : change R43 to 1.0meg  
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*7-13-09 : changed R43 to 1.0meg  
 
*6-23-09 : seems to be working.  appears to have been relabeled with #1 (despite the #3 appearing on two ICs.)  removed label
 
*6-23-09 : seems to be working.  appears to have been relabeled with #1 (despite the #3 appearing on two ICs.)  removed label
 
*1-24-09 : switching regulator gets voltage w/PB, however, 3.3V is unchanged.
 
*1-24-09 : switching regulator gets voltage w/PB, however, 3.3V is unchanged.
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==4==
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===todo===
 
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* replace switcher U7
 
  
 
=IMU cables=
 
=IMU cables=

Latest revision as of 16:11, 30 October 2009

PF Users Navigation:

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datasheets

ECOs

ADC OVERVOLTAGE ECO (COMPLETED ON #1-#3)

The circuit to measure the supply voltage causes an over voltage condition on the ADCs - corrupting all measurements.

  • replace R43 w/1.0meg resistor

ADXR610 fullscale / bandwidth ECO

  • Remove R45 (267k) - changes max rate of ADXRS610
  • Change C56 to 6.31nF (no standard value of CAPS, might use 5.6nF+400pF? or 6.7nF....)
  • this pair of modifications results in the ADXRS610 BW = 140hz.

IMU

  • w/Cout=33nF, and R45=267, Bw=45 hz
  • All signals have 1.6Khz BW going into dSPIC
  • IDG300 internal RC filter of 140 Hz - internal drive freq >= 10khz. should choose sample rate to move peak into high end of digital sample band.

1

  • 7-13-09 : changed R43 to 1.0meg
  • 7-3-09 : location IW. reprogram with firmware that supports command 2020
  • 6-26-09 : location CEB lab
  • 6-23-09 : seems to be working
  • 1-24-09 : boots and can reprogram - this will be the IMU development device.
  • 1-24-09 : removed broken jumper wires from GND to R28. Shorted Q4 gate to ground.
  • 1-24-09 : is missing pushbutton switch and is missing PB pad. Remain 3 pads don't seem to be enough to switch the system on.


2

  • 10-14-09 : discovered that R23 had a cold solder join
  • 10-13-09 : discovered dead on ankle. no flashing light. probably over voltage event.
  • 10-12-09 : installed latest firmware.
  • 7-13-09 : changed R43 to 1.0meg
  • 7-10-09 : switcher replaced.
  • 7-2-09 : IMU#2 - doesn't power with either of 2 cables. probably due to review polarity cable - probably needs new switcher.
  • 6-23-09 : seems to be working with 'blue' cable w/red and black marks on connector
  • 1-24-09 : was able to erase and reprogram.
  • 1-24-09 : system is getting 3.3V w/push button - however, unable to program over protected segments

3

  • 7-13-09 : changed R43 to 1.0meg
  • 6-23-09 : seems to be working. appears to have been relabeled with #1 (despite the #3 appearing on two ICs.) removed label
  • 1-24-09 : switching regulator gets voltage w/PB, however, 3.3V is unchanged.

4

IMU cables

  • IMU cables with red wire are all subject to intermittent connections due to large wire size. use a small screw driver or xacto to press wires back into IDC slots.

pinout (new SC Rev200 -> IMU cable

  • 12pin -> 10pin
  • 1 -> 10
  • 2 -> NC
  • 3 -> 7
  • 4 -> 6
  • 5 -> 5
  • 6 -> 4
  • 7 -> 2
  • 8 -> 9
  • 9 -> 8
  • 10 -> NC
  • 11 -> 1
  • 12 -> NC


pinout (old SC Rev100->IMU) cable

  • 12pin -> 10pin
  • 1 -> 1 (VBAT)
  • 2 -> NC
  • 3 -> 4 (SS)
  • 4 -> 5 (SLK)
  • 5 -> 6 (MOSI)
  • 6 -> 7 (MISO)
  • 7 -> 9 (SRVC)
  • 8 -> 2 (DEBUG)
  • 9 -> 3 (SCPWREN)
  • 10 -> NC
  • 11 -> 10 (GND)
  • 12 -> NC
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