Difference between revisions of "Rev200 mods"
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* change D13 to diode that actually has 200mV drop @ 1uA. BAS116-F-7 appears to have 427mV @ 0.3uA | * change D13 to diode that actually has 200mV drop @ 1uA. BAS116-F-7 appears to have 427mV @ 0.3uA | ||
** | ** | ||
− | + | ||
==SCMC== | ==SCMC== | ||
* change cutoff freq to ~15Khz for temp circuit (U22) R102=1k, C73=0.01u | * change cutoff freq to ~15Khz for temp circuit (U22) R102=1k, C73=0.01u | ||
+ | * pg 7/18 : remove R232 - 10k for batt_temp_mon pullup | ||
+ | * pg 7/18 : remove R245 - 220 ohm for mtr_temp_mon pullup | ||
+ | |||
+ | * pg 7/18 : R206, R216 -> 6.66k to scale range 0-5V to 0-3.0V (current sensors) | ||
+ | * pg 7/18 : bridge current sensor use same values phase U,V | ||
+ | |||
+ | |||
+ | * Pg 8/18 : increase size of resisters (by 10x) for supply voltage measurement (R91, R94, R221, R88). Keep cut off freq the same. | ||
+ | |||
+ | * pg 8/18 : populate so measurement of supply voltage is default (R222, R233 installed). its easier to remove components than to add them. | ||
+ | * pg 14/18 : Add DNP 1k? to the TP252 node that connects to the new previous linear spring connector | ||
− | * | + | * pg 3/18 : replace 1.25mm header for EC30 enc/hall w/ 12x0.8mm header |
− | + | ** [[http://mediawiki.dideas.com/index.php?title=Upd_2x0_218_controller#pinout 12x8 pinout]] | |
− | + | ** [http://dhcp-17-197.media.mit.edu/ankle/for_mpd/prelim-EMILE3_070709.pdf interface cable] | |
+ | * replace hall_c input with SSI_CLK 5V output | ||
* need to determine the accuracy of the RTC. Seems to be drifting. | * need to determine the accuracy of the RTC. Seems to be drifting. | ||
− | |||
− | |||
* need to workout : linear spring input to be used for some other 0-3V analog signal inputs. Would like AGND, Analog 3V reference, Analog 5V, and a pair of analog inputs. | * need to workout : linear spring input to be used for some other 0-3V analog signal inputs. Would like AGND, Analog 3V reference, Analog 5V, and a pair of analog inputs. | ||
** Battery temp, and previous linear spring. | ** Battery temp, and previous linear spring. | ||
** Add zero ohm, DNP at TP252 and route to linear spring input | ** Add zero ohm, DNP at TP252 and route to linear spring input | ||
+ | |||
+ | * locate IMU header for easy access. possibly rot180 - or move 2mm away from edge. | ||
+ | ** KS - lower position. CB in V2 appears to be much more space in the shell | ||
==IMU== | ==IMU== | ||
* probably want to upgrade dual axis IMU | * probably want to upgrade dual axis IMU | ||
* battery measurement circuit needs to be re-done. | * battery measurement circuit needs to be re-done. |
Revision as of 21:32, 30 September 2009
- PF Top Nav; PCB; Hardware; Assembly PFCmdMenu iochan
- PCA : SC/MC 218 FET 217 IMU219 Swiffy Rev200_mods
- PFCMD : SC; MC; PFCMD_PY; Pf_calb_table_py; Virtual spring test; PF1_Code_History; PF EEPROM
- SERIES: S01 S02 S03 wow_left wow_right
PCB needed Revisions
- debug documentation should should show all TP pads, and not be the mirror image.
- KS - need to adjust PCB outlines
- height of coin cells is too great. need the original coin cell spec
current sensors
- presently 5V current sensor becomes 3.283V, but ADC reference is 3.0V so of the 75.76A range (0->5V), only 69.23A are viable. Thus range is -37.88A to +31.34A. The scale factor is 65536 / (5/.066 * 3/(5*10/15.23)) = 946.6789
FET
- w/clamp circuit - use thermal vias for R4 - this device is impossible to replace
- will try low temp solder and send to MPD
- populate coin charger as default with 6.3V target voltage (R=1.21meg). If non-rechargeable cells are installed, DNP the connecting resistor. (pg 4/8)
- way to measure coin cell voltage without charger enabled? Connect pin 3 of U10 to something like the SFTYSNS_EN, or MTR_EN signal at TP97 or U20B
- change D13 to diode that actually has 200mV drop @ 1uA. BAS116-F-7 appears to have 427mV @ 0.3uA
SCMC
- change cutoff freq to ~15Khz for temp circuit (U22) R102=1k, C73=0.01u
- pg 7/18 : remove R232 - 10k for batt_temp_mon pullup
- pg 7/18 : remove R245 - 220 ohm for mtr_temp_mon pullup
- pg 7/18 : R206, R216 -> 6.66k to scale range 0-5V to 0-3.0V (current sensors)
- pg 7/18 : bridge current sensor use same values phase U,V
- Pg 8/18 : increase size of resisters (by 10x) for supply voltage measurement (R91, R94, R221, R88). Keep cut off freq the same.
- pg 8/18 : populate so measurement of supply voltage is default (R222, R233 installed). its easier to remove components than to add them.
- pg 14/18 : Add DNP 1k? to the TP252 node that connects to the new previous linear spring connector
- pg 3/18 : replace 1.25mm header for EC30 enc/hall w/ 12x0.8mm header
- replace hall_c input with SSI_CLK 5V output
- need to determine the accuracy of the RTC. Seems to be drifting.
- need to workout : linear spring input to be used for some other 0-3V analog signal inputs. Would like AGND, Analog 3V reference, Analog 5V, and a pair of analog inputs.
- Battery temp, and previous linear spring.
- Add zero ohm, DNP at TP252 and route to linear spring input
- locate IMU header for easy access. possibly rot180 - or move 2mm away from edge.
- KS - lower position. CB in V2 appears to be much more space in the shell
IMU
- probably want to upgrade dual axis IMU
- battery measurement circuit needs to be re-done.