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ST7789 tests with Xmega

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prenticedavid
2017-10-29 08:47:36 +00:00
parent 689bd28068
commit 3342a14b4d
1 changed files with 7 additions and 2 deletions
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9
utility/mcufriend_special.h
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@@ -110,13 +110,18 @@
// VPORTs are very fast. CBI, SBI are only one cycle. Hence all those RD_ACTIVEs
// ILI9320 data sheet says tDDR=100ns. We need 218ns to read REGs correctly.
// S6D0154 data sheet says tDDR=250ns. We need ~500ns to read REGs correctly.
// ST7789 data sheet says tRC=450ns. We need ~167ns to read REGs correctly. (10 cycles @ 60MHz )
// ST7789 says tRC=160ns for ID and tRC=450ns for Frame Memory
// ILI9341 says tRC=160ns for ID and tRC=450ns for Frame Memory. They are FASTER
#define WRITE_DELAY { }
#define READ_DELAY { RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; }
#define write_8(x) { VPORT2.OUT = x; }
#define read_8() ( VPORT2.IN )
#define setWriteDir() { PORTCFG.VPCTRLA=0x10; PORTCFG.VPCTRLB=0x32; VPORT2.DIR = 0xFF; }
#define setReadDir() { VPORT2.DIR = 0x00; }
#define write8(x) { write_8(x); WR_STROBE; }
#define write8(x) { write_8(x); WRITE_DELAY; WR_STROBE; }
#define write16(x) { uint8_t h = (x)>>8, l = x; write8(h); write8(l); }
#define READ_8(dst) { RD_STROBE; RD_ACTIVE; RD_ACTIVE; RD_ACTIVE; dst = read_8(); RD_IDLE; }
#define READ_8(dst) { RD_STROBE; READ_DELAY; dst = read_8(); RD_IDLE; }
#define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
#define PIN_LOW(p, b) (p).OUT &= ~(1<<(b))