Is DDR required for K-70 LCDC?

mehmetoksan — Tue, 27 Dec 2016 13:25:04 GMT

Hello friends,

I am working with MK70FN1M0VMJ12 UC. I don't use TWR-K70-RGB LCD module. I want to control a TFT with MK70FN1M0VMJ12k without an external chip (SSD1963 or ILI.....) and I am using "eGUI". I tried to export an image with "eGUI" (size : 800x600, bit depth: 24, format : jpg)

const LWord Aeshnid-ovipositing-800x600_data[] // array size:480000, 1875KB

But SRAM and LCD-RAM are as follows.

#define __EXTERNAL_MRAM_ROM_BASE 0xA0000000
#define __EXTERNAL_MRAM_ROM_SIZE 0x00000000
#define __EXTERNAL_MRAM_RAM_BASE 0xA0000000
#define __EXTERNAL_MRAM_RAM_SIZE 0x00080000
#define __EXTERNAL_DDR2_RAM_BASE 0x70000000
#define __EXTERNAL_DDR2_RAM_SIZE 0x08000000
#define __EXTERNAL_LCD_BASE 0xA0010000
#define __EXTERNAL_LCD_SIZE 0x0001FFFF//127KB
#define __EXTERNAL_LCD_DC_BASE 0xA0000000

#define __INTERNAL_SRAM_BASE 0x1FFF0000
#define __INTERNAL_SRAM_SIZE 0x00020000//128KB

So, Do I have to use DDR for LCDC? or Can I compress this image via "eGUI"?

Best Regards

Mehmet Okşan

Original Attachment has been moved to: 800_600_jpg.h.zip

Original Attachment has been moved to: 800_600_jpg.c.zip

Re: Is DDR required for K-70 LCDC?

Hui_Ma — Thu, 29 Dec 2016 05:18:40 GMT

Yes, customer can place picture at Flexbus connected MRAM memory.

It need to initialize Flexbus module during the system initialization phase (sysinit() at <start.c> file).

Wish it helps.

Have a great day,
Ma Hui
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topic Is DDR required for K-70 LCDC? in Kinetis Microcontrollers

Is DDR required for K-70 LCDC?

Re: Is DDR required for K-70 LCDC?