Difference between revisions of "Lia"

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(just link to Lisa/M v2.0 jumper configuration instead of duplicating info)
(re-added differing default jumper config)
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There are a number of jumpers on Lia used to configure voltage levels and power input. Their locations and functions are identical to those on the Lisa/M v2.0.<br/>
There are a number of jumpers on Lia used to configure voltage levels and power input. Their locations and functions are identical to those on the Lisa/M v2.0.<br/>
See the [[Lisa/M_v2.0#Jumper_Configuration|Jumper Configuration section on the Lisa/M v2.0 page]].
See the [[Lisa/M_v2.0#Jumper_Configuration|Jumper Configuration section on the Lisa/M v2.0 page]].
Note that the default states of JP8 and JP9 are reversed with respect to the defaults of Lisa/M v2.0; that is:
{|border="1"  cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
|+'''Lia UART1 and UART5 VCC Configuration'''
!width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
|-
|JP8||UART1&5_VCC to V_IN||style="background:black; color:white"|CLOSED||Connects UART1 and UART5 connector VCC to autopilot input voltage V_IN rail
|-
|JP9||UART1&5_VCC to +3V3||OPEN||Connects UART1 and UART5 connector VCC to autopilot +3V3 rail
|}
'''WARNING: DO NOT CLOSE BOTH JP8 AND JP9 SIMULTANEOUSLY!!!'''

Revision as of 17:19, 22 March 2013

Lia is a lower cost version of Lisa/M first developed for inclusion with the Quadshot Mocha.

Differences from Lisa/M

  • 0.1" pitch connectors instead of molex picoblade
  • No CAN transceiver (footprint still present just not populated)
  • No I2C2 level shifter (footprint still present just not populated)
  • No 5V voltage regulator (footprint still present just not populated)
  • No JTAG connector (footprint still present just not populated)
  • Added servo power inline resistors (by default 0 ohm but can be changed to higher value for balancing the linear voltage regulators of the motor controllers)

Pictures

Jumper Configuration

There are a number of jumpers on Lia used to configure voltage levels and power input. Their locations and functions are identical to those on the Lisa/M v2.0.
See the Jumper Configuration section on the Lisa/M v2.0 page.

Note that the default states of JP8 and JP9 are reversed with respect to the defaults of Lisa/M v2.0; that is:

Lia UART1 and UART5 VCC Configuration
Jumper Bus Connection Default Description
JP8 UART1&5_VCC to V_IN CLOSED Connects UART1 and UART5 connector VCC to autopilot input voltage V_IN rail
JP9 UART1&5_VCC to +3V3 OPEN Connects UART1 and UART5 connector VCC to autopilot +3V3 rail

WARNING: DO NOT CLOSE BOTH JP8 AND JP9 SIMULTANEOUSLY!!!