Diff: main.cpp

Revision:

0:944015c441cb

Child:

1:71ea5acdee1b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Nov 25 06:59:09 2010 +0000
@@ -0,0 +1,403 @@
+#include <string>
+
+#include "24LCxx_I2C.h"
+
+/*
+ * Declare functions
+ */
+
+void AvailableIndicator();
+char DisplayMenuAndGetChoice(); // Display and get the user choice
+void RunStateMachine_WithStdStringValue(); // Write and read a string
+void RunStateMachine_WithByteValue(); // Write and read a byte
+void RunStateMachine_WithShortValue(C2424LCXX_I2C::Mode p_mode); // Write and read a short
+void RunStateMachine_WithIntegerValue(C2424LCXX_I2C::Mode p_mode); // Write and read an integer
+void RunStateMachine_WithStdVectorOfByteValue(); // Write and read a buffer of bytes
+void RunStateMachine_WithLengthPlusStdVectorOfByteValue(); // Write and read a buffer of bytes
+
+/*
+ * Declare statics
+ */
+enum States {
+    Idle,
+    Write,
+    Written,
+    Read
+};
+States g_state; // Process states for memory operations
+
+DigitalOut g_availableLed(LED1); // To verify if program in running
+Ticker g_available; // LED1 will flash with a period of 2s
+
+C2424LCXX_I2C g_myEEPROM(p28, p27, 0x01, p5, 400000); // Create an instance of the class C2424LCXX_I2C, p28: SDA, p29:SDL, p5: wired to WP input of 24LCxx, address: A3=0,A2=0,A=1, on 3.3V I2C bus
+
+int main() {
+
+    wait(1); // Needed after startup
+   
+    // Launch available indocator
+    g_available.attach(&AvailableIndicator, 2.0);
+    
+    g_myEEPROM.WriteProtect(false); // Disabe WP (pin 7) - See DS21203M - Clause 2.4 Write-Protect (WP)
+    
+    while (true) { // Interrupt driven processing
+        g_state = Idle;
+        switch (DisplayMenuAndGetChoice()) {
+            case 'a':
+                do {
+                    RunStateMachine_WithStdStringValue();
+                } while (g_state != Idle);
+                break;
+            case 'b':
+                do {
+                    RunStateMachine_WithByteValue();
+                } while (g_state != Idle);
+                break;
+            case 'c':
+                do {
+                    RunStateMachine_WithShortValue(C2424LCXX_I2C::BigEndian);
+                } while (g_state != Idle);
+                break;
+            case 'd':
+                do {
+                    RunStateMachine_WithShortValue(C2424LCXX_I2C::LittleEndian);
+                } while (g_state != Idle);
+                break;
+            case 'e':
+                do {
+                    RunStateMachine_WithIntegerValue(C2424LCXX_I2C::BigEndian);
+                } while (g_state != Idle);
+                break;
+            case 'f':
+                do {
+                    RunStateMachine_WithIntegerValue(C2424LCXX_I2C::LittleEndian);
+                } while (g_state != Idle);
+                break;
+            case 'g':
+                do {
+                    RunStateMachine_WithStdVectorOfByteValue();
+                } while (g_state != Idle);
+                break;
+            case 'h':
+                do {
+                    RunStateMachine_WithLengthPlusStdVectorOfByteValue();
+                } while (g_state != Idle);
+                break;
+            default:
+                printf("Invalid user choice\r\n");
+                break;
+         } // End of 'switch' statement
+    } // End of 'while' statement
+} // End of program - nerver reached
+
+void AvailableIndicator()
+{
+    g_availableLed = !g_availableLed;
+} // End of AvailableIndicator
+
+char DisplayMenuAndGetChoice()
+{
+    printf("\r\n\r\n24LCxx_I2C v0.1\r\n");
+    printf("\tWrite/Read with std::string:\t\t\ta\r\n");
+    printf("\tWrite/Read with a byte:\t\t\t\tb\r\n");
+    printf("\tWrite/Read with a short (Big Endian):\t\tc\r\n");
+    printf("\tWrite/Read with a short (Little Endian):\td\r\n");
+    printf("\tWrite/Read with an integer (Big Endian):\te\r\n");
+    printf("\tWrite/Read with an integer (Little Endian):\tf\r\n");
+    printf("\tWrite/Read with std::vector<byte>:\t\tg\r\n");
+    printf("\tWrite/Read with std::vector<byte> + length:\th\r\n");
+    printf("Enter your choice:\r\n");
+    return getchar();
+}
+
+void RunStateMachine_WithStdStringValue()
+{
+    DEBUG_ENTER("RunStateMachine_WithStdStringValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write: {
+                DEBUG("Writing data...");
+                time_t ctTime;
+                ctTime = time(NULL);  
+                std::string str("Current time is: ");
+                str += ctime(&ctTime);
+                str += " UTC";
+                printf("RunStateMachine_WithStdStringValue: Write '%s'\r\n", str.c_str());
+                if (!g_myEEPROM.Write(256, str)) { // Write the string, including the length indicator
+                    DEBUG_FATAL("RunStateMachine_WithStdStringValue: write failed at address 256")
+                    g_state = Idle;
+                } else {
+                    g_state = Written;
+                }
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...");
+                std::string readtext;
+                if (!g_myEEPROM.Read(256, readtext)) { // Read the string, including the length indicator
+#ifdef __DEBUG
+                    DEBUG_FATAL("RunStateMachine_WithStdStringValue: write failed at address 256")
+#else // __DEBUG
+                    printf("RunStateMachine_WithStdStringValue: write failed at address 256\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithStdStringValue: Read:'%s'\r\n", readtext.c_str());
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithStdStringValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithStdStringValue")
+}
+
+void RunStateMachine_WithByteValue() {
+    DEBUG_ENTER("RunStateMachine_WithByteValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write:
+            DEBUG("Writing data...")
+            printf("RunStateMachine_WithByteValue: Write 0xaa\r\n");
+            if (!g_myEEPROM.Write(128, (unsigned char)0xaa)) {
+#ifdef __DEBUG
+                DEBUG_FATAL("RunStateMachine_WithByteValue: write failed at address 128")
+#else // __DEBUG
+                printf("RunStateMachine_WithByteValue: write failed at address 128\r\n");
+#endif // __DEBUG
+                g_state = Idle;
+            } else {
+                g_state = Written;
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...")
+                unsigned char value = 0x00;
+                if (!g_myEEPROM.Read(128, &value)) {
+#ifdef __DEBUG
+                    DEBUG_FATAL("RunStateMachine_WithByteValue: Read operation failed at address 128")
+#else // __DEBUG
+                    printf("RunStateMachine_WithByteValue: Read operation failed at address 128\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithByteValue: Read '0x%02x'\r\n", value);
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithByteValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithByteValue")
+}
+
+void RunStateMachine_WithShortValue(C2424LCXX_I2C::Mode p_mode) {
+    DEBUG_ENTER("RunStateMachine_WithShortValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write:
+            DEBUG("Writing data...")
+            printf("RunStateMachine_WithShortValue: Write 0xbeef\r\n");
+            if (!g_myEEPROM.Write(64, (short)0xbeef, p_mode)) { // See http://en.wikipedia.org/wiki/Hexspeak for more ideas on hexadecimal wording!!!
+                DEBUG_FATAL("RunStateMachine_WithShortValue: write failed at address 64")
+                g_state = Idle;
+            } else {
+                g_state = Written;
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...");
+                short value = 0;
+                if (!g_myEEPROM.Read(64, &value, p_mode)) {
+#ifdef __DEBUG
+                DEBUG_FATAL("RunStateMachine_WithShortValue: write failed at address 64")
+#else // __DEBUG
+                printf("RunStateMachine_WithShortValue: write failed at address 64\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithShortValue: Read '0x%04x' / '%hu'\r\n", value, (unsigned short)value);
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithShortValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithShortValue")
+}
+
+void RunStateMachine_WithIntegerValue(C2424LCXX_I2C::Mode p_mode) {
+    DEBUG_ENTER("RunStateMachine_WithIntegerValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write:
+            DEBUG("Writing data...")
+            printf("RunStateMachine_WithIntegerValue: Write 0xdeaddead\r\n");
+            if (!g_myEEPROM.Write(32, (int)0xdeaddead, p_mode)) {
+                DEBUG_FATAL("RunStateMachine_WithIntegerValue: write failed at address 32")
+                g_state = Idle;
+            } else {
+                g_state = Written;
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...")
+                int value = 0;
+                if (!g_myEEPROM.Read(32, &value, p_mode)) {
+#ifdef __DEBUG
+                    DEBUG_FATAL("RunStateMachine_WithIntegerValue: write failed at address 32")
+#else // __DEBUG
+                    printf("RunStateMachine_WithIntegerValue: write failed at address 32\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithIntegerValue: Read '0x%08x' / '%d'\r\n", value, (unsigned int)value);
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithIntegerValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithIntegerValue")
+}
+
+void RunStateMachine_WithStdVectorOfByteValue() {
+    DEBUG_ENTER("RunStateMachine_WithStdVectorOfByteValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write: {
+                std::vector<unsigned char> datas;
+                datas.push_back(0xfe);
+                datas.push_back(0xed);
+                datas.push_back(0xfa);
+                datas.push_back(0xce);
+                DEBUG("Writing data...")
+                printf("RunStateMachine_WithStdVectorOfByteValue: Write {0xfe, 0xed, 0xfa, 0xce}\r\n");
+                if (!g_myEEPROM.Write(16, datas, false)) { // Write the full buffer, not including the length indication
+                    DEBUG_FATAL("RunStateMachine_WithStdVectorOfByteValue: write failed at address 16")
+                    g_state = Idle;
+                } else {
+                    g_state = Written;
+                }
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...")
+                std::vector<unsigned char> datas(4);
+                if (!g_myEEPROM.Read(16, datas, false)) { // Read bytes, without the lenght indication, buffer size shall be set before the call
+#ifdef __DEBUG
+                    DEBUG_FATAL("RunStateMachine_WithStdVectorOfByteValue: write failed at address 16")
+#else // __DEBUG
+                    printf("RunStateMachine_WithStdVectorOfByteValue: write failed at address 16\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithStdVectorOfByteValue: Read {%02x, %02x, %02x, %02x}\r\n", datas[0], datas[1], datas[2], datas[3]);
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithStdVectorOfByteValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithStdVectorOfByteValue")
+}
+
+void RunStateMachine_WithLengthPlusStdVectorOfByteValue() {
+    DEBUG_ENTER("RunStateMachine_WithLengthPlusStdVectorOfByteValue")
+    
+    switch (g_state) {
+        case Idle:
+            g_state = Write;
+            break;
+        case Write: {
+                DEBUG("Writing data...")
+                std::vector<unsigned char> datas;
+                datas.push_back(0xde);
+                datas.push_back(0x5e);
+                datas.push_back(0xa5);
+                datas.push_back(0xed);
+                printf("RunStateMachine_WithLengthPlusStdVectorOfByteValue: Write {0xde, 0x5e, 0xa5, 0xed}\r\n");
+                if (!g_myEEPROM.Write(8, datas)) { // Write the full buffer, including the length indication
+                    DEBUG_FATAL("RunStateMachine_WithLengthPlusStdVectorOfByteValue: write failed at address 8")
+                    g_state = Idle;
+                } else {
+                    g_state = Written;
+                }
+            }
+            break;
+        case Written:
+            g_state = Read;
+            break;
+        case Read: {
+                DEBUG("Reading datas...")
+                std::vector<unsigned char> datas;
+                if (!g_myEEPROM.Read(8, datas)) { // Read bytes, including the lenght indication, buffer size is not set before the call
+#ifdef __DEBUG
+                    DEBUG_FATAL("RunStateMachine_WithStdVectorOfByteValue: write failed at address 8")
+#else // __DEBUG
+                    printf("RunStateMachine_WithStdVectorOfByteValue: write failed at address 8\r\n");
+#endif // __DEBUG
+                } else {
+                    printf("RunStateMachine_WithLengthPlusStdVectorOfByteValue: Read bytes: ");
+                    vector<unsigned char>::iterator it;
+                    for (it = datas.begin() ; it < datas.end(); it++) {
+                        printf("0x%02x ", *it);
+                    }
+                    printf("\r\n");
+                }
+            }
+            g_state = Idle;
+            break;
+        default:
+            printf("RunStateMachine_WithLengthPlusStdVectorOfByteValue: Default!\r\n");
+            g_state = Idle;
+            break;
+    }
+
+    DEBUG_LEAVE("RunStateMachine_WithLengthPlusStdVectorOfByteValue")
+}