initial commit

bit_manipulations/app/main.c

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

bit_manipulations/app/utils_ctboard.c

@@ -0,0 +1,103 @@
+/* ----------------------------------------------------------------------------
+ * --  _____       ______  _____                                              -
+ * -- |_   _|     |  ____|/ ____|                                             -
+ * --   | |  _ __ | |__  | (___    Institute of Embedded Systems              -
+ * --   | | | '_ \|  __|  \___ \   Zurich University of                       -
+ * --  _| |_| | | | |____ ____) |  Applied Sciences                           -
+ * -- |_____|_| |_|______|_____/   8401 Winterthur, Switzerland               -
+ * ----------------------------------------------------------------------------
+ * --
+ * -- Project     : CT Board - Cortex M4
+ * -- Description : Utilities for ct board.
+ * --
+ * -- $Id: utils_ctboard.c 2160 2015-06-08 12:28:00Z feur $
+ * ------------------------------------------------------------------------- */
+
+#include <stdint.h>
+#include "utils_ctboard.h"
+
+/* ----------------------------------------------------------------------------
+ * -- Functions
+ * ----------------------------------------------------------------------------
+ */
+
+/*
+ * See header file
+ */
+uint8_t read_byte(uint32_t address)
+{
+    uint8_t *pointer;
+    pointer = (uint8_t *)address;
+    return *pointer;
+}
+
+/*
+ * See header file
+ */
+uint16_t read_halfword(uint32_t address)
+{
+    uint16_t *pointer;
+    pointer = (uint16_t *)address;
+    return *pointer;
+}
+
+/*
+ * See header file
+ */
+uint32_t read_word(uint32_t address)
+{
+    uint32_t *pointer;
+    pointer = (uint32_t *)address;
+    return *pointer;
+}
+
+/*
+ * See header file
+ */
+uint64_t read_doubleword(uint32_t address)
+{
+    uint64_t *pointer;
+    pointer = (uint64_t *)address;
+    return *pointer;
+}
+
+
+/*
+ * See header file
+ */
+void write_byte(uint32_t address, uint8_t data)
+{
+    uint8_t *pointer;
+    pointer = (uint8_t *)address;
+    *pointer = data;
+}
+
+/*
+ * See header file
+ */
+void write_halfword(uint32_t address, uint16_t data)
+{
+    uint16_t *pointer;
+    pointer = (uint16_t *)address;
+    *pointer = data;
+}
+
+/*
+ * See header file
+ */
+void write_word(uint32_t address, uint32_t data)
+{
+    uint32_t *pointer;
+    pointer = (uint32_t *)address;
+    *pointer = data;
+}
+
+/*
+ * See header file
+ */
+void write_doubleword(uint32_t address, uint64_t data)
+{
+    uint64_t *pointer;
+    pointer = (uint64_t *)address;
+    *pointer = data;
+}

bit_manipulations/app/utils_ctboard.h

@@ -0,0 +1,52 @@
+/* ----------------------------------------------------------------------------
+ * --  _____       ______  _____                                              -
+ * -- |_   _|     |  ____|/ ____|                                             -
+ * --   | |  _ __ | |__  | (___    Institute of Embedded Systems              -
+ * --   | | | '_ \|  __|  \___ \   Zurich University of                       -
+ * --  _| |_| | | | |____ ____) |  Applied Sciences                           -
+ * -- |_____|_| |_|______|_____/   8401 Winterthur, Switzerland               -
+ * ----------------------------------------------------------------------------
+ * --
+ * -- Module      : ctboard_utils
+ * -- Description : Interface for module.
+ * --
+ * -- $Id: utils_ctboard.h 1122 2015-01-06 13:57:04Z feur $
+ * ------------------------------------------------------------------------- */
+#ifndef _UTILS_CTBOARD
+#define _UTILS_CTBOARD
+
+#include <stdint.h>
+
+/* ----------------------------------------------------------------------------
+ * -- Function prototypes
+ * ----------------------------------------------------------------------------
+ */
+
+/*
+ * Functions to read either a byte, halfword, word or
+ * doubleword from an arbitrary address.
+ * @param   address: address to read from (32 bit)
+ * @retval  data @ address
+ */
+uint8_t  read_byte(uint32_t address);
+uint16_t read_halfword(uint32_t address);
+uint32_t read_word(uint32_t address);
+uint64_t read_doubleword(uint32_t address);
+
+
+/*
+ * Functions to write either a byte, halfword, word or
+ * doubleword to an arbitrary address.
+ * @param   address: address to write to (32 bit)
+ *          data: data to write @ address
+ */
+void write_byte(uint32_t address, uint8_t data);
+void write_halfword(uint32_t address, uint16_t data);
+void write_word(uint32_t address, uint32_t data);
+void write_doubleword(uint32_t address, uint64_t data);
+
+/* ----------------------------------------------------------------------------
+ * -- Header file end
+ * ----------------------------------------------------------------------------
+ */
+#endif