| 7segment | This sample demonstrates programming of the RTC Display Board. When
the program is executed, the character '8' is displayed on all the
digits.
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| adc | This sample demonstrates ADC interfacing. When the program is
executed, the voltage on ADC channel 1 is displayed on the LCD. When
the POT connected to channel 1 is adjusted, the LCD is updated
accordingly.
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| buzzer | This sample demonstrates piezo electric buzzer interfacing. When the
program is executed a 100Hz buzzing sound is produced
continuously. Ensure switch 1 of INTR/BUZZ DIP switch is in ON
position.
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| dac | This sample demonstrates DAC interfacing. When the program is
executed, a 5Hz 4V peak-to-peak square wave appears on the `AOUT`
pin. The output can be seen on an oscilloscope.
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| interrupt | The sample demonstrates interrupt programming. The LEDs toggle
alternately on an INTR key press. Ensure that switch 3 of INTR/BUZZ
DIP switch is in ON position.
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| keypad | This sample demonstrates 4x4 matrix keypad (add-on) access. When the
program is executed, keypad is scanned and the key pressed is
displayed on the LCD.
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| keys | The sample demonstrates access of keys KEY1-KEY4. When the program is
executed, the keys are scanned and the key pressed is displayed on the
LCD.
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| lcd | This sample demonstrates LCD interfacing. When the program is executed
the string "Zilogic Systems" is displayed on the LCD, and after a
delay of 1 second, the string "Explore ZKit-51" is displayed a
character at a time, in a typewriter fashion.
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| led | This sample demonstrates LED programming. When the program is
executed, the LEDs are blinked alternatively.
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| rtc | The sample reads and writes to RTC (PCF8563). Ensure that the RTC data
is backed up before running this sample as it overwrites the RTC time
registers. The Low Voltage indicator flag is also overlooked for the
sake of simplicity.
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| serial | This sample demonstrates UART communication. When the program is
executed, a string is transmitted through the serial interface, and
can be seen using a serial terminal program like Hyperterminal or
Minicom. The serial terminal program should be configured with the
following parameters: 9600 baudrate, 8 data bits, no parity, 1 stop
bit. Also note that while using a serial terminal program, the USBSIO
DIP switches 3 & 4 should be in OFF position.
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| spi | This sample demonstrates SPI EEPROM access. When the program is
executed the number of reboots occurred is displayed on the LCD. The
reboot count is incremented when the board is reset or
power-cycled. Since on power off or reset data in RAM is lost, the
reboot count is stored in the SPI EEPROM.
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| timer | This sample demonstrates hardware delays using 8051 timers. When the
program is executed the LEDs are blinked alternatively with a time
period of 1 second.
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