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I2C Bootloader Issue - STM32L071KB

Question asked by mkanna94 on Mar 31, 2017
Latest reply on May 31, 2017 by daniel adelsberger


   I have a STM32L071KB Chip Inserted in a  STM32F031K6-Nucleo Development Board.

   I am trying to Get into I2C Bootloader mode by Setting BOOT0 Pin to HIGH.

   But When I Try to detect the I2C Slave Address (0x42), SCL pin is driven low, and timeout error occurs.



Nucleo Board connected with a I2C Master Processor, in this case Tegra TK1

 DSO Probe Image for I2c SCL - (green) and SDA - Yellow; Slave Address - 0x84 (write) 0x85 (Read)



  • I2C1 Bus is Working Normally when I ran the Example Code in "\Examples\I2C\I2C_TwoBoards_ComIT"
  • I also tried UART Bootloader, which is also Not working Similarly, but Works in the Example Code in "\Examples\UART\UART_Printf".