DMA based FillRect works

App/mainloop.cpp

@@ -0,0 +1,57 @@
+/*
+ * mainloop.cpp
+ *
+ *  Created on: Sep 11, 2019
+ *      Author: abody
+ */
+
+#include <ili9341.h>
+#include "main.h"
+#include <mainloop.h>
+#include <initializer_list>
+
+#define LCD_REG	0x60000000     /* DC = 0 */
+#define LCD_RAM	0x60080000     /* DC = 1 */
+#define BORDER 60
+#define BARWIDTH 2
+
+void MainLoop()
+{
+	uint16_t colors[] = {
+			ILI9341_RED, ILI9341_ORANGE, ILI9341_YELLOW, ILI9341_GREENYELLOW,
+			ILI9341_GREEN, ILI9341_CYAN, ILI9341_BLUE, ILI9341_MAGENTA
+	};
+	static uint16_t const colorCount = sizeof(colors)/sizeof(colors[0]);
+	uint32_t lastTick = 0;
+	uint32_t tmpTick;
+	uint32_t lastDiff;
+
+	//LL_SYSTICK_EnableIT();
+
+	Ili9341Fsmc &lcd(Ili9341Fsmc::Instance((volatile unsigned short *) LCD_REG, (volatile unsigned short *) LCD_RAM, DMA2, LL_DMA_STREAM_4, true));
+
+	lcd.FillRect(ILI9341_WHITE);
+	lcd.FillRect(BORDER, BORDER, lcd.Width()- BORDER * 2, lcd.Height()-BORDER * 2, ILI9341_BLACK);
+	uint16_t offset = 0;
+	uint16_t maxidx = (lcd.Width() - BARWIDTH) / BARWIDTH;
+	for(;;) {
+		uint16_t idx = 0;
+		while(idx <= maxidx ) {
+			lcd.FillRect(idx * BARWIDTH, 0, BARWIDTH, lcd.Height(), colors[(idx+offset) % colorCount]);
+			++idx;
+		}
+		offset = (offset+1)%colorCount;
+		tmpTick = HAL_GetTick();
+		lastDiff = tmpTick - lastTick;
+		do tmpTick = HAL_GetTick(); while(tmpTick - lastTick < 20);
+		lastTick = tmpTick;
+//		LL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
+//		LL_GPIO_TogglePin(LED2_GPIO_Port, LED2_Pin);
+//		LL_mDelay(25);
+	}
+}
+
+MainLoop::MainLoop()
+{
+
+}