When the XSPI2 frequency of STM32H7R7L8H6H exceeds 133MHz, the external NOR flash gets stuck due to timeout

[g_da01]

STM32H7R7L8H6H XSPI2 is mounted with MX25UM25645GXDI00, and the frequency setting exceeds 133Mhz. The Boot program fails to run and gets stuck in the "XSPI_WaitFlagStateUntilTimeout" function.

Please help me!XSPI2 ConfigurationClock Tree ConfigurationEXTMEM_MANAGER Config 1EXTMEM_MANAGER Config 2Stuck here

[g_da01 · Accepted solution]

The issue has been resolved. Simply open HSLV in STM32CubeProgrammer and enable the high-speed mode