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| == Jumper Configuration == | | == 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. The descriptions below thus apply to both boards. | | 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]]. |
| The default configuration is UART3 VCC at V_IN, UART1/2/5 VCC at +3V3, with the V_SERVO servo voltage rail NOT connected to the autopilot V_IN rail, allowing one to power the autopilot and servos separately. The +5V regulator is NOT bypassed, allowing a regulated +5V on listed headers and for the CAN transceiver and I2C level shifter. The V_BATT connector is NOT connected to V_IN, so one can attach a battery voltage to the V_BATT pin to measure the battery voltage, if so desired.
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| <gallery widths=380px heights=205px>
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| Image:LisaM_V2_0_top_jumpers_and_leds.png | Lisa/M v2.0 Top Jumpers and LEDs
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| Image:LisaM_V2_0_bottom_jumpers.png | Lisa/M v2.0 Bottom Jumpers
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| </gallery>
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| <br style="clear:both">
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| | |
| {|border="1" cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
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| |+'''Power Jumper Configuration'''
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| !width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
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| |-
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| |JP1||SERVO_BUS to V_IN||OPEN||Connects servo header voltage rail SERVO_BUS to autopilot input voltage V_IN rail
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| |-
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| |JP2||V_BATT to V_IN||OPEN||Connects I2C1/CAN rail V_BATT to autopilot input voltage V_IN rail
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| |-
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| |JP3||V_IN to +5V||OPEN||Connects autopilot input voltage V_IN rail to autopilot +5V rail, bypassing onboard 5V supply
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| |}
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| {|border="1" cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
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| |+'''UART3 VCC Configuration'''
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| !width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
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| |-
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| |JP6||UART3_VCC to V_IN||style="background:black; color:white"|CLOSED||Connects UART3 connector VCC to autopilot input voltage V_IN rail
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| |-
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| |JP7||UART3_VCC to +3V3||OPEN||Connects UART3 connector VCC to autopilot +3V3 rail
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| |}
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| '''WARNING: UART3 GPS Connector is connected to V_IN, check your GPS input voltage before connecting!!!'''
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| '''WARNING: DO NOT CLOSE BOTH JP6 AND JP7 SIMULTANEOUSLY!!!'''
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| {|border="1" cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
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| |+'''UART2 VCC Configuration'''
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| !width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
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| |-
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| |JP4||UART2_VCC to V_IN||OPEN||Connects UART2 connector VCC to autopilot input voltage V_IN rail '''SEE WARNING BELOW'''
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| |-
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| |JP5||UART2_VCC to +3V3||style="background:black; color:white"|CLOSED||Connects UART2 connector VCC to autopilot +3V3 rail
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| |}
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| '''WARNING: UART2 RX is NOT 5V TOLERANT. Thus, while possible to connect UART2_VCC to V_IN, DO NOT ATTEMPT THIS. Only use JP5 (the default).
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| '''WARNING: DO NOT CLOSE BOTH JP4 AND JP5 SIMULTANEOUSLY!!!'''
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| {|border="1" cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
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| |+'''UART1 and UART5 VCC Configuration'''
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| !width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
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| |-
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| |JP8||UART1&5_VCC to V_IN||OPEN||Connects UART1 and UART5 connector VCC to autopilot input voltage V_IN rail
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| |-
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| |JP9||UART1&5_VCC to +3V3||style="background:black; color:white"|CLOSED||Connects UART1 and UART5 connector VCC to autopilot +3V3 rail
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| |}
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| '''WARNING: DO NOT CLOSE BOTH JP8 AND JP9 SIMULTANEOUSLY!!!'''
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| There are additional jumpers on the board for expert or developer configurations, please see [[Lisa/M_v20#Schematic|schematic]] and [[Lisa/M_v20#Downloads|layout]] for more information.
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