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STM32- ST link utility loader problem for external flash download

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venkateshhkmvt

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Hi,
We are using a customized board with stm32l4x MCU and a JTAG connector.
A QSPI flash is connected with MCU.
Trying to program qspi flash using ST Link Utility with External Loader. am able to program the qspi flash.
but the Problem is, if I do a full chip erase of STM32L4x MCU, then we are not able to program the externally connected qspi flash.
below is the error on ST link utility tool:
"Memory-Loader error, Error occurred during erase operation! ".
But if I flash a small application into STM32L4x MCU, then am able to program my external qspi flash using ST Link Utility External Loader.
did anyone have experienced this problem before? please help!

Thankyou!
 

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