RTC Board User Manual
Contents
1. RTC Board All Mikroelektronika s development systems feature a large number of peripheral modules expanding microcontroller s range of application and making the process of program testing easier In addition to these modules it is also possible to use numerous additional modules linked to the development system through the I O port connectors Some of these additional modules can operate as stand alone devices without being connected to the microcontroller EdMikroElektronika SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD waking ib sigle RTC Real Time Clock A real time clock is used to keep the real time and date generate interrupt and provide timer and alarm functions Due to a battery cell the operation of the real time clock is enabled even when the microcontroller s power supply goes off The real time clock is linked to a development system via a 2x5 female connector provided on the RTC board and a 2x5 male connector provided on the I O port of the development system The real time clock communicates with the microcontroller using 12C serial communication DIP switch SWA is used to select a development system to connect the RTC board to Figure 1 RTC board DIP switch SW1 is used to select a development system to connect the RTC additional board to This switch also enables connection between the SDA SCL and INT RTC pins provided on the RTC board and a serial I2C module built into the microcontroller Fig2. em MikroElektronika UJOO 80JyIUJ D JO je sn j9ejuoo 0 ejejseu jou op sjesodoJud sseuisnd JO S USWILUOD suonsenb Aue 9 eu nof yi 5 poddns ue woo sou MMM o bd WO aoi MM JE 9JISq9A JNO YSIA oseo d sionpoud baud 6100 uJEe9 op tem nof JI CO IdOM AdaAddJAWA YOJ SNOILNA TOS JIVMAJVH ANY JHAVMLAOS E L1 E i ms
3. ure 3 shows the pinout of the DIP switch SW1 B3 P MEE ga nj eS m f Ja haf 2x5 female connector enables the additional board d ar c Tel to be connected to a development system jp Figure 2 RTC board s bottom view The function of pins provided on the PCF8583P circuit that is used for connection with the microcontroller INT Open drain interrupt output SCL Serial clock line SDA Serial data line The function of pins provided on the 2x5 female connector CN1 PO SCL pin for EasyAVR and BIGAVR development systems P1 SDA pin for EasyAVR and BIGAVR development systems F2 SCL pin for BIGdsPIC dsPICPRO LV32MX and LV24 33 development systems It is also used as an interrupt pin P3 SDA pin for BIGdsPIC dsPICPRO LV32MX and LV24 33 development systems and SCL pin for EasyPIC BIGPIC LV18FJ and EasyLV18 development systems P4 SDA pin for EasyPIC BIGPIC LV18FJ and EasyLV18 development systems P5 Interrupt pin MikroElektronika a 3 EasyAVR BIGAVR 4 BIGdsPIC dsPICPRO LV32MX LV24 33 EasyPIC BIGPIC LV18FJ EasyLV18 EasyAVR BIGAVR 4 BIGdsPIC dsPICPRO LV32MX LV24 33 4 EasyPIC BIGPIC LV18FJ EasyLV18 z Lan C1 100nF 3V 230mA l SCL Y INT RTC C per X1 INTE INT RTC 32 768KHz on CONI scil S Kel MA PCF8583P BLOSVTECL 3 NO LI BS 8 9S8v 2l s L SR Dou E2 REI Figure 4 RTC board connected to a development syst
Download Pdf Manuals
Related Search