search

nopnop2002 / Raspberry-ili9340spi

ILI9340 SPI TFT Library & XPT2046 Touch Screen Library for Raspberry
MIT License
39 stars 16 forks source link

Unable to open SPI device: No such file or directory #28

Open demenkovms opened 1 year ago

demenkovms commented 1 year ago

Try to use it on Orange Pi Zero with WiringPi.

I connect TFT to OPI zero, to SPI 1 

TFT                                OPI
SDO(MISO)  -------->   SPI1_MISO/PA16
SCK             -------->    SPI1_CLK/PA14
SDI(MOSI)    -------->   SPI1_MOSI/PA15
DC               -------->   PA12
RESET           -------->   PA11
CS                -------->   PA13
VCC, LED     -------->    3.3v
GND            -------->    GND

set in ili9340.c
#define D_C  12
#define RES  11
#define C_S  13

make cc -o demo demo.c fontx.c ili9340.c -lwiringPi -lm -DWPI

in /boot/orangepiEnv.txt add:

overlays=spi-jedec-nor spi-spidev 
param_spidev_spi_bus=0

run ./demo and get:

Your TFT resolution is 240 x 320.
Your TFT offsetx    is 0.
Your TFT offsety    is 0.
Opening device /dev/spidev0.0
Unable to open SPI device: No such file or directory

Please, help: what I did wrong? Thanks!

nopnop2002 commented 1 year ago

Opening device /dev/spidev0.0

Orange Pi Zero's CS is CS1, not CS0.

Add the following two lines to /boot/armbianEnv.txt and reboot

overlays=spi-spidev usbhost2 usbhost3
param_spidev_spi_bus=1
$ ls /dev/spi*
/dev/spidev1.0

Clone latest and build.

$ cc -o demo demo.c fontx.c ili9340.c -lwiringPi -lm -pthread -DWPI -DSPI1
demenkovms commented 1 year ago

Thanks for answer! Not I get изображение

but nothing shows on display - it's white

nopnop2002 commented 1 year ago 
set in ili9340.c
#define D_C  12
#define RES  11
#define C_S  13

There are several WiringPi libraries that can be used with ZERO, and the allocation of GPIO is different for each.

This is the WiringPi library I'm using.

It's probably not the same as you are using.

readall-OPI-ZERO-1

You can check the GPIO number of your library using GPIO command and LED Blinking.

$ gpio -g mode 13 out
$ gpio -g write 13 on
$ gpio -g write 13 off
demenkovms commented 1 year ago

hm... in my изображение

is I need set number by from GPIO or wPi?

nopnop2002 commented 1 year ago

is I need set number by from GPIO or wPi?

probably neither

You should investigate the GPIO pinmap.

Does the following command blink the LED connected to pin number 8?

$ gpio -g mode 198 out
$ gpio -g write 198 on
$ gpio -g write 198 off

On my WiringPi this will flash pin number 8.

$ gpio -g mode 20 out
$ gpio -g write 20 on
$ gpio -g write 20 off

It is very difficult to use WiringPi Library in the OrangePi series.

demenkovms commented 1 year ago

led is not not blink and gpio not made on...

изображение

demenkovms commented 1 year ago

I download this library https://github.com/xpertsavenue/WiringOP-Zero and it works correct with LED.

изображение

then I change in ili9340.c pins for wPi

#define D_C  8 

#define RES  9 

#define C_S  10

recompiled demo, but nothing changed...

nopnop2002 commented 1 year ago

Read this thread.

https://forum.armbian.com/topic/20033-51525-breaks-spi-on-nanopi-neo-and-does-not-create-devspidev00/

demenkovms commented 1 year ago

I need to downgrade kernel to 5.10. Is I correctly understood?

nopnop2002 commented 1 year ago

You are correct, but there is no mention of OPI-ZERO anywhere.

OPI-ZERO is SPI1, so there may be other issues.

demenkovms commented 1 year ago

then, may be it’s possible to change spi in library code?

nopnop2002 commented 1 year ago

I can’t understand your mention.

The WiringPi library is provided in source, so you can modify it as you like.

And since this project is also provided in source, you can modify it to your liking.

demenkovms commented 1 year ago

I mean: in your library used /dev/spi0, and in Opi Zero used /dev/spi1. Can I change spi0 to spi1 in code?

nopnop2002 commented 1 year ago

Can I change spi0 to spi1 in code?

Use compile flag. -DSPI1

demenkovms commented 1 year ago

yes. I compiled with this flag, as you wrote some posts earlier. It’s runs correctly but nothing shows on display

nopnop2002 commented 1 year ago

Using the latest repo, I have verified that it works fine on OrangePiPC.

$ uname -a
Linux orangepipc 5.10.60-sunxi #21.08.1 SMP Wed Aug 25 18:19:32 UTC 2021 armv7l GNU/Linux

$ cat /boot/armbianEnv.txt
verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun8i-h3
rootdev=UUID=8724794f-4966-4eeb-9e56-4eab78d3c318
rootfstype=ext4
overlays=spi-spidev
param_spidev_spi_bus=0
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

$ ls /dev/spi*
/dev/spidev0.0

RES-->Pin#5 DC-->Pin#3

git clone https://github.com/nopnop2002/Raspberry-ili9340spi
cd Raspberry-ili9340spi
cc -o demo demo.c fontx.c ili9340.c -lwiringPi -lm -pthread -DWPI
sudo ./demo

IMG_3601

Try latest, and with -DSPI1.

nopnop2002 commented 1 year ago

OrangePi ONE works fine.

However, it doesn't work properly with OrangePi ZERO.

It's probably a problem with ZERO's SPI driver.

IMG_3604

demenkovms commented 1 year ago

I really can not understand what is wrong...

I reinstall Armbial for early version:

uname -a
Linux orangepizero 5.10.12-sunxi #21.02.1 SMP Wed Feb 3 20:39:30 CET 2021 armv7l GNU/Linux

edit /boot/armbianEnv.txt

verbosity=1
bootlogo=false
console=serial
disp_mode=1920x1080p60
overlay_prefix=sun8i-h3
overlays=usbhost2 usbhost3
rootdev=UUID=13a6830e-cee9-4001-83ce-6b4e7542699c
rootfstype=ext4
overlays=spi-spidev
param_spidev_spi_bus=0
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

and now I have SPI0: изображение

gpio readall return:

изображение

Try to blink LED:

gpio mode 6 OUT
gpio write 6 on
gpio write 6 off

all work correctly - led was blink

check connection:

TFT OPI SDO(MISO) --------> SPI1_MISO/PA16 (gpio 16 - wPi 12 - pin 21) SCK --------> SPI1_CLK/PA14 (gpio 14 - wPi 14 - pin 23) SDI(MOSI) --------> SPI1_MOSI/PA15 (gpio15 - wPi 11 - pin 19) DC --------> PA12 (gpio 12 - wPi 0 - pin 3) RESET --------> PA11 (gpio 11 - wPi 1 - pin 5) CS --------> PA13 (gpio 13 - wPi 16 - pin 26) VCC, LED --------> 3.3v GND --------> GND

download new repo, make

cc -o demo demo.c fontx.c ili9340.c -lwiringPi -lm -pthread -DWPI

on run ./demo get output: изображение

but the display is white...

nopnop2002 commented 1 year ago

change and try

It will blink pin#3

gpio mode 0 OUT
gpio write 0 on
gpio write 0 off

It will blink pin#5

gpio mode 1 OUT
gpio write 1 on
gpio write 1 off

param_spidev_spi_bus=0 ---> param_spidev_spi_bus=1

DC --------> PA12 (gpio 12 - wPi 0 - pin 3) --> #define D_C 0 // wPi IO0=Pin#3

RESET --------> PA11 (gpio 11 - wPi 1 - pin 5) --> #define RES 1 // wPi IO1=Pin#5

cc -o demo demo.c fontx.c ili9340.c -lwiringPi -lm -pthread -DWPI -DSPI1

nopnop2002 commented 1 year ago

I tried this and it doesn't work.

$ dmesg | grep spi
[    4.488718] spidev spi1.0: probing from DT

$ ls /dev/spi*
/dev/spidev1.0

$ uname -a
Linux orangepizero 5.10.34-sunxi #21.05.1 SMP Thu May 6 20:13:21 UTC 2021 armv7l GNU/Linux

$ cat /boot/armbianEnv.txt
verbosity=1
bootlogo=false
console=serial
disp_mode=1920x1080p60
overlay_prefix=sun8i-h3
overlays=usbhost2 usbhost3
rootdev=UUID=93502503-5a81-4c0c-b76e-fabcad07a82b
rootfstype=ext4
overlays=spi-spidev
param_spidev_spi_bus=1
param_spidev_spi_cs=0
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
nopnop2002 commented 1 year ago

Hardware SPI doesn't work properly on ZERO.

So we supported software SPI. Very slow but work.

I used this library.

https://github.com/xpertsavenue/WiringOP-Zero

$ uname -a
Linux orangepizero 5.15.93-sunxi #23.02.2 SMP Fri Feb 17 23:49:46 UTC 2023 armv7l GNU/Linux

IMG_3608