I've got a HX8347I 2.8 TFT LCD that I'm trying to get working. Tried mcufriend - graphictest_kb in a Uno and Mega and both giving a while blank screen.
readreg:
reg(0x0000) 01 01 ID: ILI9320, ILI9325, ILI9335, ...
reg(0x0004) 05 05 05 05 Manufacturer ID
reg(0x0009) 09 09 09 09 09 Status Register
reg(0x000A) 09 09 Get Power Mode
reg(0x000C) 0D 0D Get Pixel Format
reg(0x0061) 61 61 RDID1 HX8347-G
reg(0x0062) 61 61 RDID2 HX8347-G
reg(0x0063) 61 61 RDID3 HX8347-G
reg(0x0064) 65 65 RDID1 HX8347-A
reg(0x0065) 65 65 RDID2 HX8347-A
reg(0x0066) 65 65 RDID3 HX8347-A
reg(0x0067) 65 65 RDID Himax HX8347-A
reg(0x0070) 71 71 Panel Himax HX8347-A
reg(0x00A1) A1 A1 A1 A1 A1 RD_DDB SSD1963
reg(0x00B0) B1 B1 RGB Interface Signal Control
reg(0x00B4) B5 B5 Inversion Control
reg(0x00B6) B5 B5 B5 B5 B5 Display Control
reg(0x00B7) B5 B5 Entry Mode Set
reg(0x00BF) BD BD BD BD BD BD ILI9481, HX8357-B
reg(0x00C0) C1 C1 C1 C1 C1 C1 C1 C1 C1 Panel Control
reg(0x00C8) C9 C9 C9 C9 C9 C9 C9 C9 C9 C9 C9 C9 C9 GAMMA
reg(0x00CC) CD CD Panel Control
reg(0x00D0) D1 D1 D1 Power Control
reg(0x00D2) D1 D1 D1 D1 D1 NVM Read
reg(0x00D3) D1 D1 D1 D1 ILI9341, ILI9488
reg(0x00D4) D5 D5 D5 D5 Novatek ID
reg(0x00DA) D9 D9 RDID1
reg(0x00DB) D9 D9 RDID2
reg(0x00DC) DD DD RDID3
reg(0x00E0) E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 GAMMA-P
reg(0x00E1) E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 E1 GAMMA-N
reg(0x00EF) ED ED ED ED ED ED ILI9327
reg(0x00F2) F1 F1 F1 F1 F1 F1 F1 F1 F1 F1 F1 F1 Adjust Control 2
reg(0x00F6) F5 F5 F5 F5 Interface Control
I've tried 2 displays and they both give the same result. Does these results give any clue?
I've uncommented this line:
#define SUPPORT_8347D //HX8347-D, HX8347-G, HX8347-I, HX8367-A +520 bytes, 0.27s