Diff: main.cpp

Revision:

0:9140ec6aa604

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jul 28 14:19:12 2017 +0000
@@ -0,0 +1,142 @@
+#include "mbed.h"
+#include "DMBoard.h"
+#include "lpc_swim.h"
+#include "lpc_swim_font.h"
+
+#include "GuiLib.h"
+#include "GuiDisplay.h"
+
+/*
+    Bodge so GuiDisplay.c ('easyGUIFixed' file) can call Thread::wait 
+    (giving it an accurate millisecond timer)
+*/
+extern "C" {
+    void EasyGUIWaitMs(GuiConst_INT32U msec)
+    {
+        Thread::wait(msec);
+    }
+}
+
+// Defined in GuiDisplay.c - set the display frame address at runtime
+extern "C" {
+    void GuiDisplay_SetFrameAddress(void *newFrameAddress);
+}
+
+/*
+    Displays the specified easyGUI 'structure' (or page, to use a more easily understood term).
+    
+    Args are: the index of the structure to be displayed,
+              
+    No return code.
+*/
+void DisplayEasyGuiStructure(int structureIndex)
+{
+    GuiLib_Clear(); // Don't need this if we have drawn the background bitmap - it covers the entire screen
+
+    GuiLib_ShowScreen(structureIndex, GuiLib_NO_CURSOR, GuiLib_RESET_AUTO_REDRAW);
+                        
+    GuiLib_Refresh();
+
+} // End of "DisplayEasyGUIStructure"
+
+/*
+    Sets up the easyGUI user interface in an acceptable initial state.
+
+    No return code.
+*/
+void InitEasyGUIDisplay(int initialEasyGUIPage)
+{
+    // easyGUI stuff - note function calls require 'extern "C"' in relevant header
+    
+    GuiDisplay_Lock();
+    
+    GuiLib_Init();
+  
+    DisplayEasyGuiStructure(initialEasyGUIPage);
+    
+//    GuiLib_ShowBitmap(GuiStruct_Bitmap_DSC_1836Reduced, 40, 0, -1);
+  
+    GuiDisplay_Unlock();
+}
+
+
+void InitialiseLPC4088(DMBoard* board, void **frameBufferAddress1, void **frameBufferAddress2)
+{
+    RtosLog* log = board->logger();
+    Display* disp = board->display();
+  
+    DMBoard::BoardError err;
+
+    do {
+        err = board->init();
+        if (err != DMBoard::Ok) {
+            log->printf("Failed to initialize the board, got error %d\r\n", err);
+            break;
+        }
+       
+
+#define COLOR_FLICKERING_FIX_1
+#ifdef COLOR_FLICKERING_FIX_1
+        // Possible fix for display flickering on LPC4088
+        uint32_t* reg = ((uint32_t*)0x400fc188);
+        *reg |= (3<<10);
+#undef COLOR_FLICKERING_FIX_1
+#endif
+        log->printf("\n\nHello World!\n\n");
+    
+        void* fb = disp->allocateFramebuffer();
+        if (fb == NULL) {
+            log->printf("Failed to allocate memory for a frame buffer\r\n");
+            err = DMBoard::MemoryError;
+            break;
+        }
+    
+        *frameBufferAddress1 = fb;
+
+        // Allocate a second frame buffer - what will its address be?
+        void* fb2 = disp->allocateFramebuffer();
+        *frameBufferAddress2 = fb2;
+                
+        Display::DisplayError disperr;
+//      disperr = disp->powerUp(fb, Display::Resolution_24bit_rgb888);
+        // Start display in default mode (16-bit) (24-bit uses too much memory)
+#define COLOR_FLICKERING_FIX_2
+#ifdef COLOR_FLICKERING_FIX_2
+        // Second possible fix for colour flickering problem,
+        // suggested by Embedded Artists - specify low frame rate
+        disp->powerDown();
+        disperr = disp->powerUp(fb, Display::Resolution_16bit_rgb565, FrameRate_Low);
+#undef COLOR_FLICKERING_FIX_2
+#else
+        disperr = disp->powerUp(fb);
+#endif
+        if (disperr != Display::DisplayError_Ok) {
+            log->printf("Failed to initialize the display, got error %d\r\n", disperr);
+            break;
+        }
+        
+    } while(false);
+
+    if (err != DMBoard::Ok) {
+        log->printf("\nTERMINATING\n");
+        wait_ms(2000); // allow RtosLog to flush messages
+        mbed_die();
+    }  
+}
+
+int main()
+{
+    DMBoard* board = &DMBoard::instance();
+    RtosLog* log = board->logger();
+    Display* disp = board->display();
+
+    void *frameBuffer1;
+    void *frameBuffer2;
+    InitialiseLPC4088(board, &frameBuffer1, &frameBuffer2);
+    GuiDisplay_SetFrameAddress(frameBuffer1);
+  
+    InitEasyGUIDisplay(GuiStruct_Demo_0);
+    
+    while(true) {
+    }   
+}