7c80 no communication between rpspi 4

I tried
enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on

everything is working now.
i download linuxcnc_2.9.3_amd64.deb for raspberry pi 4 and they are working. thanks!!

thanks guys for your help!!




Thanks all you guys for your help.

Just for completeness what actual file did you edit to enable the spi interfaces ?

Was it:

/boot/firmware/config.txt <-This should not exist on the Linuxcnc image, neither directory or file. Unless the user creates it.
or
/boot/broadcom/config.txt <--This should be the file

Mr_rookie wrote:

I tried ...

everything is working now.
i download linuxcnc_2.9.3_amd64.deb for raspberry pi 4 and they are working. thanks!!

AMD64 and Raspberry Pi 4??

everything is working now ....

I really think it's a miracle!!!

www.linuxcnc.org/dists/bookworm/2.9-uspa...pace_2.9.2_arm64.deb
arm64.

yes, but if you are looking get access remotely you may have slow UI.
systemctl disable lightdm that work in my case works perfectly.

arm_64bit=1
initramfs initrd.gz followkernel

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

# camera
#start_x=1
#gpu_mem=128

# automatically load overlays for detected cameras
#camera_auto_detect=1

# automatically load overlays for detected DSI displays
#display_auto_detect=1

# uncomment to overclock: www.tomshardware.com/how-to/overclock-any-raspberry-pi
#arm_freq=
#gpu_freq=
#core_freq=
#over_voltage=
#force_turbo=1

# uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on

# uncomment this to enable infrared communication.
dtoverlay=gpio-ir,gpio_pin=17
dtoverlay=gpio-ir-tx,gpio_pin=18

# additional overlays and parameters are documented /boot/overlays/README

# enable audio (loads snd_bcm2835)
dtparam=audio=on

# enable uart
enable_uart=0

# disable wifi and bluetooth
#dtoverlay=disable-wifi
#dtoverlay=disable-bt
#dtoverlay=pi3-disable-wifi
#dtoverlay=pi3-disable-bt
#dtoverlay=disable-wifi-pi5
#dtoverlay=disable-bt-pi5

# remove test rainbow
disable_splash=1

# disables the warning overlays
avoid_warnings=1

# gpio fan (headers)
#dtoverlay=gpio-fan,gpiopin=12,temp=55000,hyst=2000

[cm4]
otg_mode=1

[pi4]
dtoverlay=vc4-kms-v3d,cma-512
#dtoverlay=vc4-kms-v3d-pi4
#dtoverlay=vc4-fkms-v3d
max_framebuffers=2
arm_boost=1
#disable_fw_kms_setup=1

[pi5]
dtoverlay=vc4-kms-v3d,cma-512
#dtoverlay=vc4-kms-v3d-pi5
#dtoverlay=vc4-fkms-v3d
max_framebuffers=0
arm_boost=1
usb_max_current_enable=1
disable_fw_kms_setup=1

# pwm fan
#dtparam=fan_temp0=50000
#dtparam=fan_temp0_hyst=2000
#dtparam=fan_temp0_speed=75
#dtparam=fan_temp1=55000
#dtparam=fan_temp1_hyst=2000
#dtparam=fan_temp1_speed=125
#dtparam=fan_temp2=60000
#dtparam=fan_temp2_hyst=3000
#dtparam=fan_temp2_speed=175
#dtparam=fan_temp3=65000
#dtparam=fan_temp3_hyst=3000
#dtparam=fan_temp3_speed=250



I remove the # to activate this line
# uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on