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I have some of the early cheap TFT displays, 240 x 320. I have been able to get them up
and running on Arduino, but vastly prefer doing it on a PSOC 4 because of other project
goals. I found the attached project. It used a bootloader, which I deleted off the project
as I am using pioneer type boards, both PSOC 4 and 4M.
In all cases I see a blank display. Tried on both 4 and 4M boards
SCK levels, configed in PSOC project as R Pullup, do not look good at all. Same
true for MOSI coming out of the PSOC. So I set MOSI out of the PSOC as strong
drive, that cleaned it up. There are no other chips sharing MOSI. But of course I cannot do that
to SCK.
So wondering if anyone has gotten this to run on PSOC ? As evidenced by the project
I found on web.
Display controller is ILI9341. See attached pinout.
Regards, Dana.
Solved! Go to Solution.
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PSoC Creator Software
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Hi Dana.
I have several old projects:
TFT240x320_ECG_Simulator.zip here
and a little for PSoC5 here: emWin 5.46 and FlexColor
but I was able to get them to work only for SPIM -> Advanced -> External Clock (2-24 mHz)
And all contacts - Drive mode = Strong drive
Check out the test case below.
But your display has a Parallel 8-bit interface, with 4 control lines.
You need another way to connect (GraphicLCDIntf).
Evgeniy.
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Hi Dana.
I have several old projects:
TFT240x320_ECG_Simulator.zip here
and a little for PSoC5 here: emWin 5.46 and FlexColor
but I was able to get them to work only for SPIM -> Advanced -> External Clock (2-24 mHz)
And all contacts - Drive mode = Strong drive
Check out the test case below.
But your display has a Parallel 8-bit interface, with 4 control lines.
You need another way to connect (GraphicLCDIntf).
Evgeniy.
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Thanks for the reply, I too just discovered its parallel only as the serial capability
is dedicated to the SD Card. Feel like an idiot.
But thanks for posting the projects, Your projects useful when I pick up some
SPI displays. Which I plan on doing in the near future.
So community anyone out there with a parallel 8 bit solution for mcufriend display ?
Regards, Dana.
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I used the parallel interface in the projects S5320.zip and NOKIA_MC2PA8201.zip (Control Reg -> PIN)
and WG240128_5LP.zip (GraphicLCDIntf)
In your case it is enough to use GraphicLCDIntf instead of SPIM
and replace / rewrite commands:
void TFT_SendCMD (uint8_t cmd)
void TFT_WriteData (uint8_t Data)
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Evgeniy, I have ported one of your projects to PSOC 4 and got it to compile, still no display
function, just white screen. I have to admit I was surprised how easy that was per your
instructions.
Using a working Arduino I get this dump, not sure what controller is in part -
diagnose any controller
reg(0x0000) 00 00 ID: ILI9320, ILI9325, ILI9335, ...
reg(0x0004) 00 00 00 00 Manufacturer ID
reg(0x0009) 00 00 61 00 00 Status Register
reg(0x000A) 00 08 Get Power Mode
reg(0x000C) 00 06 Get Pixel Format
reg(0x0030) 00 00 00 00 00 PTLAR
reg(0x0033) 00 00 00 00 00 00 00 VSCRLDEF
reg(0x0061) 00 00 RDID1 HX8347-G
reg(0x0062) 00 00 RDID2 HX8347-G
reg(0x0063) 00 00 RDID3 HX8347-G
reg(0x0064) 00 00 RDID1 HX8347-A
reg(0x0065) 00 00 RDID2 HX8347-A
reg(0x0066) 00 00 RDID3 HX8347-A
reg(0x0067) 00 00 RDID Himax HX8347-A
reg(0x0070) 00 00 Panel Himax HX8347-A
reg(0x00A1) 00 00 00 00 00 RD_DDB SSD1963
reg(0x00B0) 00 00 RGB Interface Signal Control
reg(0x00B3) 00 00 1B 1B 1B Frame Memory
reg(0x00B4) 00 02 Frame Mode
reg(0x00B6) 00 0A 82 27 04 Display Control
reg(0x00B7) 00 06 Entry Mode Set
reg(0x00BF) 00 00 00 00 00 00 ILI9481, HX8357-B
reg(0x00C0) 00 21 00 00 00 00 00 00 00 Panel Control
reg(0x00C1) 00 10 10 10 Display Timing
reg(0x00C5) 00 31 Frame Rate
reg(0x00C8) 00 00 00 00 00 00 00 00 00 00 00 00 00 GAMMA
reg(0x00CC) 00 72 Panel Control
reg(0x00D0) 00 00 00 00 Power Control
reg(0x00D1) 00 00 00 00 VCOM Control
reg(0x00D2) 00 00 00 Power Normal
reg(0x00D3) 00 00 93 41 ILI9341, ILI9488
reg(0x00D4) 00 00 00 00 Novatek
reg(0x00DA) 00 00 RDID1
reg(0x00DB) 00 00 RDID2
reg(0x00DC) 00 00 RDID3
reg(0x00E0) 00 0F 16 14 0A 0D 06 43 75 33 06 0E 00 0C 09 08 GAMMA-P
reg(0x00E1) 00 08 2B 2D 04 10 04 3E 24 4E 04 0F 0E 35 38 0F GAMMA-N
reg(0x00EF) 00 03 80 02 02 02 ILI9327
reg(0x00F2) 00 02 02 02 02 02 02 02 02 02 02 02 Adjust Control 2
reg(0x00F6) 00 01 00 00 Interface Control
I have not done a bus analysis yet on PSOC 4, but all pins seem to look like they are
"talking" properly to display. 8 bit parallel mode.
Any clues would be welcomed.
Regards, Dana.
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Evgeniy, looks like I had a bad display, another seems to be working, running your
Test and EEG waveform plotter.
Can't thank you enough, big help.
Regards, Dana.
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Hi Dana!
I'm glad it worked out.
The files TFT.h and TFT.c must be for a specific display.
Especially the void TFT_Init (uint8_t orient) function
Good luck! Evgeniy.