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Reset LPC43XX M4 to boot from SRAM, skipping boot ROM

Question asked by gert vierman on Oct 13, 2017
Latest reply on Oct 23, 2017 by Bernhard Fink

For our product we would like to be able to put the M4 core to sleep, have the M0 load new code from flash to RAM, and then reset the M4 to run the new code from RAM.


The LPC43xx manual states that the M4MEMMAP is default set to the boot rom at 0x1040 000; Is this default value only set at system reset, or also when the M4 is reset with M4_RST in LPC_RGU->RESET_CTR?