Procedure of Replacing Battery
NOTE: FW>=183, The calibration registers are stored in Flash Memory instead of RTC Backup domain. They will be not lost after the Battery replacement procedure. Steps 1&9 can be skipped.
- if you calibrated clock previouly and modified default values, read them using s4t_info.tos program, make a note of them as they are going to be lost,
- Open the SD4ST case,
- replace CD2032 3V battery, use te toothpick to remove old one and place new. Use good quality recognisable brand battery,
- Close the SD4ST case,
- Put your SDCard, plug SD4ST device to Atari, plug power to SD4ST & Boot Atari,
- Run s4t_cal2.tos program and put it back your calibratd values. Skip this step if you are using default cal values,
- Run us_setcl.prg and set new date and time as they going to be lost.
NOTE: the procedure has been written and valid for @ FW.179 or above