I want to suspend all interrupts and FreeRTOS events etc, and run some bare-metal code to move bytes from one place in flash to another...

The "target" location is the "firmware" (A FreeRTOS build of MicroPython) - aka 0x1000 (sector 1) for a length of 1737664 bytes.

The "source" for the move is ...

where it says that ESPNOW is not compatible with BLE.....

no it doesn't (it's a confusing table, but read the fine-print at the bottom) - it says espnow and ble and wifi (STA mode only) can all co-exist and are stable.

So much confusion in all the above!!!

This should help everyone sort stuff out:
/* Constructor for the RTC on the logging shield. */
DFRobot_DS1307 DS1307;
char daynames[]="SUN\0MON\0TUE\0WED\0THU\0FRI\0SAT\0";

// Set the ESP32 time from the RTC.
bool StartRTC() { // See http://www ...