Using a custom board that uses a CC2541. I am using the simpleBLE peripheral example and have my own application tasks running as well.
When the system goes to sleep, I stop all the application tasks and the sleep current drops to ~15 uA as expected (has UART module initialized).
But when I disable the uart module i.e. when UART is not initialized - When the system goes to sleep, I stop all the application tasks but the sleep current stays at 2.5 mA in this case. Not sure why disbaling UART causes this issue. I have verified the UART related I/O pins are set to pull down.
Please let me know what could be the issue