I am doing a custom board porting an MQX app from the twrk40 and I am stuck.
After MQX initialization I get a default ISR fault when the systick interrupt occurs. I see in the code where the default ISRs are copied to the beginning of RAM in startup.C, followed by setting VTOR appropriately. In MQX I see where the pointer to the systick interrupt is installed in memory allocated by MQX (either sparse or not). But I can't find where either VTOR is modified by MQX or the original vector in RAM is modified by MQX.