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boards:l073rz [2024/08/11 19:50] darronboards:l073rz [2024/09/10 18:15] (current) – [ST-LINK] darron
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 ====NUCLEO-L073RZ==== ====NUCLEO-L073RZ====
 +
 +32 MHz STM32L073RZ Cortex-M0+ with 192 KB flash and 20 KB RAM.
  
 <wrap right> <wrap right>
 {{boards:lrwan2.jpg?100}} {{boards:lrwan2.jpg?100}}
 +\\ \\
 +{{boards:l073rz-front.jpg?100}}
 +\\ \\
 +{{boards:l073rz-back.jpg?100}}
 \\ \\ \\ \\
 {{boards:ardl073rz.jpg?100}} {{boards:ardl073rz.jpg?100}}
 +\\ \\
 +{{boards:stlinkdaughter.jpg?100}}
 </wrap> </wrap>
  
 +===Pinout===
 +
 +<code>
 +PC10 USART4_TX
 +PC11 USART4_RX
 +
 +CN3 STLINK RX
 +CN3 STLINK TX
 +</code>
 +
 +===Solder bridges===
 +
 +==USART==
 +
 +__Default for standalone NUCLEO-L073RZ__
 +
 +SB13 and SB14 ON, SB62 and SB63 OFF
 +<code>
 +PA2 USART2_TX ST-LINK RX
 +PA3 USART2_RX ST-LINK TX
 +</code>
 +
 +__Default for NUCLEO-L073RZ with [[lrwan1|I-NUCLEO-LRWAN1]]__
 +
 +SB13 and SB14 OFF, SB62 and SB63 ON
 +<code>
 +PA2 USART2_TX ARD D1 TX
 +PA3 USART2_RX ARD D0 RX
 +</code>
 +
 +===ST-LINK===
 +
 +By removing the two jumpers at CN2, the ST-LINK interface can be used
 +to program another board such as the  [[lrwan1|I-NUCLEO-LRWAN1]] daughterboard.
 +
 +
 +<code>
 +1 VDD TARGET
 +2 SWCLK
 +3 GND
 +4 SWDIO
 +5 NRST
 +6 SWO (RESERVED)
 +</code>
 ===Resources=== ===Resources===
  
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 [[https://www.st.com/resource/en/user_manual/um1724-stm32-nucleo64-boards-mb1136-stmicroelectronics.pdf|User manual]] [[https://www.st.com/resource/en/user_manual/um1724-stm32-nucleo64-boards-mb1136-stmicroelectronics.pdf|User manual]]
 +
 +[[https://www.st.com/resource/en/schematic_pack/mb1136-default-c04_schematic.pdf|Schematic]]
  
 [[https://www.st.com/resource/en/datasheet/stm32l073rz.pdf|MCU data-sheet]] [[https://www.st.com/resource/en/datasheet/stm32l073rz.pdf|MCU data-sheet]]