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boards:wio-e5 [2022/12/29 12:55]
darron [Clock] 		boards:wio-e5 [2022/12/31 19:18] (current)
darron [STM32WLE5JC]
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 The MCU does not contain a FPU, only the mandatory DSP for m4 The MCU does not contain a FPU, only the mandatory DSP for m4
 cores, but it does have an embedded radio, it appears to be an SX1262. cores, but it does have an embedded radio, it appears to be an SX1262.
 +
  
 ===STM32WLE5JC=== ===STM32WLE5JC===
Line 25: Line 26:
 LoRa LoRa
 </code> </code>
 +
 +There is a warning in the reference manual on page 185 of RM0461 Rev 5:
 +
 +"The SMPS needs a clock to be functional. If for any reason this clock stops,
 +the device may be destroyed."
 +
 +I probably would not have bothered with this board had I read the above warning beforehand.
 +Who designs a MCU that can self destruct if a bit doesn't get set in error?
 +
  
 ===Test=== ===Test===
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 [[https://www.st.com/resource/en/application_note/an5457-rf-matching-network-design-guide-for-stm32wl-series-stmicroelectronics.pdf|MCU RF design guide]] [[https://www.st.com/resource/en/application_note/an5457-rf-matching-network-design-guide-for-stm32wl-series-stmicroelectronics.pdf|MCU RF design guide]]
  
 +[[https://www.farnell.com/datasheets/2829356.pdf|SX1262 datasheet]]