90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/* -----------------------------------------------------------------
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* -- _____ ______ _____ -
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* -- |_ _| | ____|/ ____| -
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* -- | | _ __ | |__ | (___ Institute of Embedded Systems -
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* -- | | | '_ \| __| \___ \ Zurich University of -
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* -- _| |_| | | | |____ ____) | Applied Sciences -
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* -- |_____|_| |_|______|_____/ 8401 Winterthur, Switzerland -
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* ------------------------------------------------------------------
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* --
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* -- main.c
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* --
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* -- main for Computer Engineering "Bit Manipulations"
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* --
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* -- $Id: main.c 744 2014-09-24 07:48:46Z ruan $
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* ------------------------------------------------------------------
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*/
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//#include <reg_ctboard.h>
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#include "utils_ctboard.h"
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#define ADDR_DIP_SWITCH_31_0 0x60000200
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#define ADDR_DIP_SWITCH_7_0 0x60000200
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#define ADDR_LED_31_24 0x60000103
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#define ADDR_LED_23_16 0x60000102
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#define ADDR_LED_15_8 0x60000101
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#define ADDR_LED_7_0 0x60000100
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#define ADDR_BUTTONS 0x60000210
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// define your own macros for bitmasks below (#define)
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/// STUDENTS: To be programmed
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#define BRIGHT_MASK 0xC0
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#define DARK_MASK 0xCF
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#define BUTTON_MASK 0x0F
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#define T0_MASK 0x01
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/// END: To be programmed
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int main(void)
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{
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uint8_t led_value = 0;
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// add variables below
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/// STUDENTS: To be programmed
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uint8_t button_value = 0;
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uint8_t button_counter = 0;
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int counted = 0;
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/// END: To be programmed
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while (1) {
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// ---------- Task 3.1 ----------
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led_value = read_byte(ADDR_DIP_SWITCH_7_0);
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/// STUDENTS: To be programmed
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led_value = (led_value | BRIGHT_MASK);
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led_value = (led_value & DARK_MASK);
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button_value = read_byte(ADDR_BUTTONS);
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button_value = button_value & BUTTON_MASK;
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if((button_value & T0_MASK) > 0) {
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if(counted == 0) {
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button_counter = button_counter + 1;
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counted = 1;
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}
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} else {
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counted = 0;
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}
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write_byte(ADDR_LED_15_8, button_counter);
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/// END: To be programmed
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write_byte(ADDR_LED_7_0, led_value);
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// ---------- Task 3.2 and 3.3 ----------
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/// STUDENTS: To be programmed
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/// END: To be programmed
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}
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}
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