ili9341: Add simple test application

tests/driver_ili9341/Makefile

@@ -0,0 +1,15 @@
+BOARD ?= stm32f429i-disc1
+include ../Makefile.tests_common
+
+USEMODULE += ili9341
+USEMODULE += xtimer
+
+CFLAGS += -DILI9341_LE_MODE
+
+include $(RIOTBASE)/Makefile.include
+
+# The AVR architecture stores the image in the RAM, this usually doesn't fit.
+# This flag excludes the image from the test
+ifneq (,$(filter arch_avr8,$(FEATURES_USED)))
+  CFLAGS += -DNO_RIOT_IMAGE
+endif

tests/driver_ili9341/Makefile.ci

@@ -0,0 +1,3 @@
+BOARD_INSUFFICIENT_MEMORY := \
+    stm32f030f4-demo \
+    #

tests/driver_ili9341/main.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018 Koen Zandberg <koen@bergzand.net>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Test application for the ili9431 tft display
+ *
+ * @author      Koen Zandberg <koen@bergzand.net>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+#include "xtimer.h"
+#include "ili9341.h"
+#include "ili9341_params.h"
+
+#include "riot_logo.h"
+
+int main(void)
+{
+    ili9341_t dev;
+
+    puts("ili9341 TFT display test application");
+
+    /* initialize the sensor */
+    printf("Initializing display...");
+
+    if (ili9341_init(&dev, &ili9341_params[0]) == 0) {
+        puts("[OK]");
+    }
+    else {
+        puts("[Failed]");
+        return 1;
+    }
+
+    puts("ili9341 TFT display filling map");
+    ili9341_fill(&dev, 0, 319, 0, 239, 0x0000);
+    puts("ili9341 TFT display map filled");
+
+    /* Fill square with blue */
+    puts("Drawing blue rectangle");
+    ili9341_fill(&dev, 10, 59, 10, 109, 0x001F);
+    xtimer_sleep(1);
+
+    puts("Drawing green rectangle");
+    ili9341_fill(&dev, 10, 59, 10, 109, 0x07E0);
+    xtimer_sleep(1);
+
+    puts("Drawing red rectangle");
+    ili9341_fill(&dev, 10, 59, 10, 109, 0xf800);
+    xtimer_sleep(1);
+
+    ili9341_invert_on(&dev);
+    puts("ili9341 TFT display inverted");
+    xtimer_sleep(1);
+    ili9341_invert_off(&dev);
+    puts("ili9341 TFT display normal");
+
+    /* Make the same square black again */
+    ili9341_fill(&dev, 10, 59, 10, 109, 0x0000);
+
+#ifndef NO_RIOT_IMAGE
+    /* Approximate middle of the display */
+    ili9341_pixmap(&dev, 95, 222, 85, 153, (const uint16_t *)picture);
+#endif
+    while (1) {
+    }
+
+    return 0;
+}