Hi Everyone,
Here is an event that I just encountered, I contacted Waveshare support as well, will update it as i gather more info.
I'm using this board
https://www.waveshare.com/wiki/CM4-DUAL-ETH-MINI
with a raspberry pi compute module 4, I'm using the Raspberry Pi OS Lite 32bit 2024-03-15 as operating system. I also have the waveshare heatsink for this product. I initialized the raspberry pi using raspberry pi imager, it flashed the board and I managed to boot and ssh into it. Afterwards i set this parameter:
to config.txt.
here is my config.txt file
when i rebooted with this the board just became so hot that it melted cm4 heatsink plastic spacers, it also drew 15Ws. After this event nothing worked on the CM4 module, I tried turning it on at boot mode, nothing happened. ethernet lights are dimly lit, also the power and the io light is solid, nothing ever happens.
I believe with the new firmware we don't need to add dtoverlay=dwc2, dr_mode=host, if added it might be burning the device? is this possible. If this is the case the wiki must be updated so other people don't burn cm4 modules. Please let me know whether this is normal. I already burned my spare CM4 module, so I can't do more tests with it. I verified that the Waveshare ethernet board is still functioning with another cm4 module.
My questions are:
1) It looks like we don't need to put the dtoverlay=dwc2, dr_mode=host anymore, is this right?
2) Why did my board burn after adding dtoverlay=dwc2, dr_mode=host? maybe that was not the reason?
Here is an event that I just encountered, I contacted Waveshare support as well, will update it as i gather more info.
I'm using this board
https://www.waveshare.com/wiki/CM4-DUAL-ETH-MINI
with a raspberry pi compute module 4, I'm using the Raspberry Pi OS Lite 32bit 2024-03-15 as operating system. I also have the waveshare heatsink for this product. I initialized the raspberry pi using raspberry pi imager, it flashed the board and I managed to boot and ssh into it. Afterwards i set this parameter:
Code:
dtoverlay=dwc2, dr_mode=hosthere is my config.txt file
Code:
# For more options and information see# http://rptl.io/configtxt# Some settings may impact device functionality. See link above for details# Uncomment some or all of these to enable the optional hardware interfaces#dtparam=i2c_arm=on#dtparam=i2s=on#dtparam=spi=on# Enable audio (loads snd_bcm2835)dtparam=audio=on# Additional overlays and parameters are documented# /boot/firmware/overlays/README# Automatically load overlays for detected camerascamera_auto_detect=1# Automatically load overlays for detected DSI displaysdisplay_auto_detect=1# Automatically load initramfs files, if foundauto_initramfs=1# Enable DRM VC4 V3D driverdtoverlay=vc4-kms-v3dmax_framebuffers=2# Don't have the firmware create an initial video= setting in cmdline.txt.# Use the kernel's default instead.disable_fw_kms_setup=1# Disable compensation for displays with overscandisable_overscan=1# Run as fast as firmware / board allowsarm_boost=1[cm4]# Enable host mode on the 2711 built-in XHCI USB controller.# This line should be removed if the legacy DWC2 controller is required# (e.g. for USB device mode) or if USB support is not required.otg_mode=1[all]dtoverlay=dwc2, dr_mode=hostCode:
pi@raspberrypi:~ $ uname -r6.6.20+rpt-rpi-v8when i rebooted with this the board just became so hot that it melted cm4 heatsink plastic spacers, it also drew 15Ws. After this event nothing worked on the CM4 module, I tried turning it on at boot mode, nothing happened. ethernet lights are dimly lit, also the power and the io light is solid, nothing ever happens.
I believe with the new firmware we don't need to add dtoverlay=dwc2, dr_mode=host, if added it might be burning the device? is this possible. If this is the case the wiki must be updated so other people don't burn cm4 modules. Please let me know whether this is normal. I already burned my spare CM4 module, so I can't do more tests with it. I verified that the Waveshare ethernet board is still functioning with another cm4 module.
My questions are:
1) It looks like we don't need to put the dtoverlay=dwc2, dr_mode=host anymore, is this right?
2) Why did my board burn after adding dtoverlay=dwc2, dr_mode=host? maybe that was not the reason?
Statistics: Posted by umbcorp — Mon Jun 24, 2024 4:44 am
