Hello, I am not able to persuade my RTC to generate periodic interrupts more frequent than 2Hz (that works just fine). In theory, the device should support 2, 16, 128 and 1024 Hz. When I run my program on the simulator, and I select any frequency above 2 Hz, the setting jumps back to "reserved". Did you ever encounter this problem? I still haven't tested this on the target - only the simulator.
David, Sorry, I did not answer you question. I found this detail in Hitex's insiders guide for the STR9 - download it from http://www.st.com.