CONFIG_COMPILER_DUMP_RTL_FILES=y
CONFIG_UART_ISR_IN_IRAM=y
CONFIG_COMPILER_OPTIMIZATION_NONE=y
# place non-ISR FreeRTOS functions in Flash
CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH=y
# silent the error check, as the error string are stored in rodata, causing RTL check failure
CONFIG_COMPILER_OPTIMIZATION_CHECKS_SILENT=y
CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT=y