mimxrt/boards/MIMXRT1170_EVK: Use sdram for display.

Signed-off-by: Andrew Leech <[email protected]>

Author: pi-anl

ports/mimxrt/boards/MIMXRT1170_EVK/display_support.h

@@ -77,7 +77,8 @@
 #endif
 
 #define DEMO_BUFFER_WIDTH  DEMO_PANEL_WIDTH
-#define DEMO_BUFFER_HEIGHT (DEMO_PANEL_HEIGHT / 10)
+// #define DEMO_BUFFER_HEIGHT (DEMO_PANEL_HEIGHT / 10)
+#define DEMO_BUFFER_HEIGHT (DEMO_PANEL_HEIGHT)
 
 /* Where the frame buffer is shown in the screen. */
 #define DEMO_BUFFER_START_X 0U

ports/mimxrt/boards/MIMXRT1170_EVK/lvgl_support.c

@@ -121,9 +121,9 @@ static void DEMO_WaitBufferSwitchOff(void);
 /*******************************************************************************
  * Variables
  ******************************************************************************/
-SDK_ALIGN(static uint8_t __attribute__((section(".heap"))) s_frameBuffer[2][DEMO_FB_SIZE], DEMO_FB_ALIGN);
+SDK_ALIGN(static uint8_t __attribute__((section(".sdram"))) s_frameBuffer[2][DEMO_FB_SIZE], DEMO_FB_ALIGN);
 #if DEMO_USE_ROTATE
-SDK_ALIGN(static uint8_t __attribute__((section(".heap"))) s_lvglBuffer[1][DEMO_FB_SIZE], DEMO_FB_ALIGN);
+SDK_ALIGN(static uint8_t __attribute__((section(".sdram"))) s_lvglBuffer[1][DEMO_FB_SIZE], DEMO_FB_ALIGN);
 #endif
 
 #if defined(SDK_OS_FREE_RTOS)

ports/mimxrt/boards/MIMXRT1176.ld

@@ -49,7 +49,7 @@ __stack_size__ = 0x8000;
 _estack = __StackTop;
 _sstack = __StackLimit;
 
-#if MICROPY_HW_SDRAM_AVAIL
+#if 0 /* MICROPY_HW_SDRAM_AVAIL */
 _gc_heap_start = ORIGIN(m_sdram);
 _gc_heap_end = ORIGIN(m_sdram) + LENGTH(m_sdram);
 #else

ports/mimxrt/boards/common.ld

@@ -250,31 +250,36 @@ SECTIONS
   .heap :
   {
     . = ALIGN(8);
-    *(.heap);
     __end__ = .;
     PROVIDE(end = .);
     __HeapBase = .;
     . += HEAP_SIZE;
     __HeapLimit = .;
     __heap_limit = .; /* Add for _sbrk */
-  } > m_ocrm
+  } > m_dtcm
 
   .stack :
   {
     . = ALIGN(8);
     . += STACK_SIZE;
-  } > m_ocrm
+  } > m_dtcm
+
+  .sdram :
+  {
+    . = ALIGN(8);
+    *(.sdram);
+  } > m_sdram
 
   _flashimagelen = __FLASH_DATA_END - flash_start;
 
   /* Initializes stack on the end of block */
-  __StackTop   = ORIGIN(m_ocrm) + LENGTH(m_ocrm);
+  __StackTop   = ORIGIN(m_dtcm) + LENGTH(m_dtcm);
   __StackLimit = __StackTop - STACK_SIZE;
   _vStackTop = __StackTop;
   PROVIDE(__stack = __StackTop);
 
   .ARM.attributes 0 : { *(.ARM.attributes) }
 
-  ASSERT(__StackLimit >= __HeapLimit, "region m_ocrm overflowed with stack and heap")
+  ASSERT(__StackLimit >= __HeapLimit, "region m_dtcm overflowed with stack and heap")
 }