B&B Electronics PCRTC Owner's Manual

13, Documentation Number PCRTC2095 Manual 11 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 C Programming Example #include <conio.h> #include "rtc_api.h" void main() { TimeSave_T *ts = (TimeSave_T *) malloc(sizeof(TimeSave_T)); GetTime_T …

9, Documentation Number PCRTC2095 Manual 7 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 Start_RTC_API Purpose: Initializes API, must be the first PCRTC function called in the program. C: int Start_RTC_API(unsigned int address); Pascal: FUNCTION Star…

8, B&B Electronics PCRTC 6 Documentation Number PCRTC2095 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 The best method of updating the PCRTC time is to use the shareware program Timeset. Note that although this program is included on the PCRTC diskett…

15, Documentation Number PCRTC2095 Manual 13 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 Aging All crystal oscillators have an aging characteristic. The crystal used in the PCRTC uses the coldweld manufacturing technique, which exhibits the lowest ag…

14, 12 Documentation Number PCRTC2095 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 Chapter 4. Calculating Error PPM Terminology The unit ppm (parts per million) provides a number similar to error expressed with percentages, but reduces …

16, 14 Documentation Number PCRTC2095 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 433-5105 Appendix A. Hardware I/O Map I/O Map of XT Class Machines Hex Address Address Function in XT Class Machines 000-00F DMA controller (8237A) 020-021 interru…