kiwifruktish
commented
9 years ago I did get better color now when making changes to https://gist.github.com/ont/52c91e4ff090ee805e27 with:
import time
import RPi.GPIO as g
g.setmode(g.BOARD)
pins = [
7, # cs
11, # wr - clock (rising edge)
12, # rs - data/command
15, # d1
16, # d2
18, # d3
19, # d4 (???)
21, # d6 (???)
22, # d5 (???)
23, # d7
24, # d8
26 # rst
]
CSX = 7
DCX = 12
WRX = 11
RES = 26
D = [
15, # d1
16, # d2
18, # d3
19, # d4 (???)
22, # d5 (???)
21, # d6 (???)
23, # d7
24, # d8
]
def init():
# prepare raspberry pins for output
for x in pins:
print x
g.setup(x, g.OUT)
g.output(x, 1)
# hard reset sequence
g.output(RES, 1)
time.sleep(0.005) ## 5 ms
g.output(RES, 0)
time.sleep(0.015) ## 15 ms
g.output(RES, 1)
time.sleep(0.015) ## 15 ms
g.output(CSX, 1)
g.output(WRX, 1)
g.output(CSX, 0)
def send_data(cs, byte):
g.output(DCX, cs)
g.output(WRX, 0)
for i in xrange(8):
g.output( D[i], (byte >> i) & 1 )
g.output(WRX, 1)
def cmd(byte):
send_data(0, byte)
def data(byte):
send_data(1, byte)
init()
#cmd( 0xE9 )
#data( 0x20 )
cmd( 0x11 ) #Exit Sleep
time.sleep( 0.100 )
cmd( 0xD1 ) # VCOM Control
data( 0x00 ) # SEL/VCM
data( 0x0C ) # VCM
data( 0x0F ) # VDV
cmd( 0xD0 ) # Power_Setting
data( 0x07 ) # VC
data( 0x04 ) # BT
data( 0x00 ) # VRH
cmd( 0x36 ) # Set_address_mode
data( 0x48 )
# 0x48 = 0b01001000
# 0 - top to bottom
# 1 - right to left
# 0 - normal mode of columns order
# 0 - refresh top to bottom
# 1 - RGB or BGR (here BGR order)
# 0 - <skip>
# 0 - no hflip
# 0 - no flip
cmd(0xE0)
data(0x00)
data(0x04)
data(0x0E)
data(0x08)
data(0x17)
data(0x0A)
data(0x40)
data(0x79)
data(0x4D)
data(0x07)
data(0x0E)
data(0x0A)
data(0x1A)
data(0x1D)
data(0x0F)
cmd(0xE1)
data(0x00)
data(0x1B)
data(0x1F)
data(0x02)
data(0x10)
data(0x05)
data(0x32)
data(0x34)
data(0x43)
data(0x02)
data(0x0A)
data(0x09)
data(0x33)
data(0x37)
data(0x0F)
cmd(0xB1)
data(0xB0)
cmd(0xB4)
data(0x02)
cmd(0xF7)
data(0xA9)
data(0x51)
data(0x2C)
data(0x82)
cmd(0XB0)
data(0x00)
cmd( 0x3A ) # Set pixel format
data( 0x55 )
cmd( 0xC1 ) # Display timing setting for normal/partial mode
data( 0x41 )
cmd( 0xC0 ) # Set Default Gamma
data( 0x18 )
data( 0x16 )
cmd( 0xC5 ) # Set frame rate
data( 0x00 )
data( 0x1E )
data( 0x80 )
cmd( 0xD2 ) # Power setting
data( 0x01 )
data( 0x44 )
cmd( 0xC8 ) # Set Gamma
data( 0x04 )
data( 0x67 )
data( 0x35 )
data( 0x04 )
data( 0x08 )
data( 0x06 )
data( 0x24 )
data( 0x01 )
data( 0x37 )
data( 0x40 )
data( 0x03 )
data( 0x10 )
data( 0x08 )
data( 0x80 )
data( 0x00 )
cmd( 0x2A )
data( 0x00 )
data( 0x00 )
data( 0x01 )
data( 0x3F )
cmd( 0x2B )
data( 0x00 )
data( 0x00 )
data( 0x01 )
data( 0xDF )
cmd( 0x29 ) #display on
cmd( 0x2C ) #display on
x1 = 100
y1 = 100
x2 = 200
y2 = 200
cmd(0x2a) # Set_column_address
data(x1>>8)
data(x1)
data(x2>>8)
data(x2)
cmd(0x2b) # Set_page_address
data(y1>>8)
data(y1)
data(y2>>8)
data(y2)
cmd(0x2c) # Write_memory_start
# write pixel by pixel
for x in xrange(100):
for y in xrange(100):
data(0xee) ## low part of word
data(0) ## hight part of word
g.output(CSX, 1) ## end command / data session
This is the screen:
This is what happens when you run win32_screem.rar that was for the 3.6 screen:
It seams it shouldn't be that much different to get it running, sure its a cheap screen from aliexpress ;)
toxaq
notro
mwilliams03
bigpaulie
gibo65
sima96
Why with this distribution when I connect my wireless device IRQ32 disable and ext keyb don't work anymore? ;-/
JunkmailVictim
1ucian
susanaemp
iyayan
gicuuu3
thelinkin3000
PaddleStroke
xxxSon1cxxx
cu6apum
And here is some more info:
same as in https://github.com/notro/fbtft/issues/254
So the first part will probebly be if im not wrong: sudo modprobe fbtft_device name=flexpfb rotate=180 fps=70 gpios=dc:18,reset:7,wr:17,cs:4,db00:22,db01:23,db02:24,db03:10,db04:25,db05:9,db06:11,db07:8 But it is the other part im not realy sure how it should be, sudo modprobe flexfb ...
Documentation can be found at https://www.lpcware.com/system/files/ILI9488_Preliminary_DS_V090.pdf
I tested https://gist.github.com/ont/52c91e4ff090ee805e27 and it did work but i dont think the color is 100% right but it works.
When runing: fbtft_device name=flexpfb rotate=180 fps=70 gpios=dc:18,reset:7,wr:17,cs:4,db00:22,db01:23,db02:24,db03:10,db04:25,db05:9,db06:11,db07:8 flexfb width=320 height=480 buswidth=8 init=-1,0xE9,0x20,-1,0x11,-2,100,-1,0x3A,0x55,-1,0xD1,0x00,0x6B,0x19,-1,0xD0,0x07,0x07,0x80,-1,0x36,0x48,-1,0xC1,0x10,0x10,0x02,0x02,-1,0xC0,0x00,0x35,0x00,0x00,0x01,0x02,-1,0xC5,0x01,-1,0xD2,0x01,0x22,-1,0xC8,0x01,0x52,0x37,0x10,0x0D,0x01,0x04,0x51,0x77,0x01,0x01,0x0d,0x08,0x80,0x00,-1,0xEA,0x80,-1,0x29,-3
i have the fallowing info in dmesg: [ 11.796719] fbtft: module is from the staging directory, the quality is unknown, you have been warned. [ 11.823613] fbtft_device: module is from the staging directory, the quality is unknown, you have been warned. [ 11.841446] fbtft_device: SPI devices registered: [ 11.846408] fbtft_device: spidev spi0.0 500kHz 8 bits mode=0x00 [ 11.859142] fbtft_device: spidev spi0.1 500kHz 8 bits mode=0x00 [ 11.865906] fbtft_device: 'fb' Platform devices registered: [ 11.871856] fbtft_device: soc:fb id=-1 pdata? no [ 11.880554] fbtft_device: GPIOS used by 'flexpfb': [ 11.885527] fbtft_device: 'dc' = GPIO18 [ 11.889726] fbtft_device: 'reset' = GPIO7 [ 11.910401] fbtft_device: 'wr' = GPIO17 [ 11.914643] fbtft_device: 'cs' = GPIO4 [ 11.918726] fbtft_device: 'db00' = GPIO22 [ 11.924882] fbtft_device: 'db01' = GPIO23 [ 11.929237] fbtft_device: 'db02' = GPIO24 [ 11.933886] fbtft_device: 'db03' = GPIO10 [ 11.938259] fbtft_device: 'db04' = GPIO25 [ 11.942750] fbtft_device: 'db05' = GPIO9 [ 11.947021] fbtft_device: 'db06' = GPIO11 [ 11.951531] fbtft_device: 'db07' = GPIO8 [ 11.955834] fbtft_device: 'fb' Platform devices registered: [ 11.961746] fbtft_device: soc:fb id=-1 pdata? no [ 11.966941] fbtft_device: flexpfb id=0 pdata? yes [ 12.053062] flexfb: module is from the staging directory, the quality is unknown, you have been warned. [ 12.745963] Console: switching to colour frame buffer device 40x60 [ 12.770403] graphics fb1: flexfb frame buffer, 320x480, 300 KiB video memory, 4 KiB DMA buffer memory, fps=100
But still no picture when adding: fbcon=map:10 fbcon=font:VGA8x8 fbcon=rotate:3 to cmd before rootwait.