请教：关于F429调用高分辨率图片的问题

joemay

各位，下午好，最近调屏遇到如下的问题，请问有谁遇到过类似的问题吗？
使用F429单纯点屏，例程是在野火01. JPEG Display(libjpeg)的基础上改写的，目前，红绿蓝，灰阶，800*600以下图片均OK，现在解决不了1024*600的图片导入，现象就是白屏。[size=13.3333px]修改mgpeg.c中的  数据缓存区域  定义uint8_t  jpegbuf[1024*130]
[size=13.3333px];从100修改到130，可以导入900*500的，程序编译OK。
[size=13.3333px]修改到140就出现空间不足的错误。
[size=13.3333px]Q;请问谁有解决的办法？谢谢

#include <setjmp.h>


FIL jpgFile;            // file objects
FRESULT fres;
UINT fnum;
uint8_t  jpegbuf[1024*140];
uint32_t jbufsize;
/******************** JPEG DECOMPRESSION SAMPLE INTERFACE *******************/

[size=13.3333px]Build target 'STM32F429'
[size=13.3333px]compiling mjpeg.c...
[size=13.3333px]linking...
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching startup_stm32f429_439xx.o(STACK).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.bss).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching fatfs_sd_sdio.o(.bss).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching bsp_lcd.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching fatfs_sd_sdio.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching stm32f4xx_rcc.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching mjpeg.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching ff.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching fatfs_flash_spi.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching stderr.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching stdout.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching mvars.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching mvars.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.data).
[size=13.3333px]..\..\Output\WF-STM32F429.axf: Error: L6407E: Sections of aggregate size 0x3194 bytes could not fit into .ANY selector(s).
[size=13.3333px]Not enough information to list image symbols.
[size=13.3333px]Not enough information to list the image map.
[size=13.3333px]Finished: 2 information, 0 warning and 15 error messages.
[size=13.3333px]"..\..\Output\WF-STM32F429.axf" - 15 Error(s), 0 Warning(s).
[size=13.3333px]Target not created.
[size=13.3333px]Build Time Elapsed:  00:00:09

flyleaf

把那个变量定义到SDRAM，参考SDRAM例程里的定义方法

joemay

flyleaf 发表于 2017-4-13 17:34
把那个变量定义到SDRAM，参考SDRAM例程里的定义方法

谢谢回复
//uint8_t  jpegbuf[1024*100];
uint8_t jpegbuf[1024*2048] __attribute__((at(SDRAM_BANK_ADDR+0x500000)));
做出如上更改后，编译OK，但是依然无法调用图片1024*600，难道这么写不对？
这个和SD卡速度有关联吗？

flyleaf

joemay 发表于 2017-4-14 09:13
谢谢回复
//uint8_t  jpegbuf[1024*100];
uint8_t jpegbuf[1024*2048] __attribute__((at(SDRAM_BANK_ ...

是这样定义的，写的正确