Pironman5 IO HAT+ problems

General
1

Greetings. Recently bought Pironman5 case and everything works out-of-box except RGB LEDs and OLED screen.
After I’ve wasted a whole week trying to boot screen up I finally discovered something wrong with SCL line. What can I do now? I would be glad to get some advice/solution.

config.txt 
# 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=i2c0=on
dtparam=i2c1=on
dtparam=i2c_arm=on,i2c_arm_baudrate=100000
#dtparam=i2c_vc=on
#dtparam=i2s=on
dtparam=spi=on
#dtparam=sd_poll_once

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

# Additional overlays and parameters are documented
# /boot/firmware/overlays/README

# Automatically load overlays for detected cameras
camera_auto_detect=1

# Automatically load overlays for detected DSI displays
display_auto_detect=1

# Automatically load initramfs files, if found
auto_initramfs=1

# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_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

# Run in 64-bit mode
arm_64bit=1

# Disable compensation for displays with overscan
disable_overscan=1

# Run as fast as firmware / board allows
arm_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

[cm5]
dtoverlay=dwc2,dr_mode=host

[all]
#dtoverlay=w1-gpio
#dtparam=pciex1_gen=3

#dtoverlay=ssd1306
#dtparam=inverted

dtoverlay=sunfounder-pironman5
dtparam=ir=on

#dtoverlay=i2c-gpio
#dtparam=i2c_gpio_sda=2
#dtparam=i2c_gpio_scl=3
#dtparam=i2c_gpio_delay_us=2
#dtparam=bus=0

Also, I tried to connect oscilloscope to the both i2c lines and they works. I don’t understand what to do next.

imgur

2

After more investigation, it appears LEDs may be powered by insufficient signal (2.7v) but I see some signal peaks after executing pironman5 -re true. Maybe something broken deeper…

photo_2024-12-15_21-10-01
photo_2024-12-15_21-10-01720×1280 120 KB

All DIs from LEDs have ~15.08k Ohm up to MOSI, VCC has quite stable 5.11v and all of them has 0.6M Ohm between VCC and GND pins.

pinctrl output:

9: a0    pn | lo // GPIO9 = SPI0_MISO
10: a0    pn | lo // GPIO10 = SPI0_MOSI
11: a0    pn | lo // GPIO11 = SPI0_SCLK
3

Tried disable sound module and that made no sense at all. Later I will try to check board i2c lines again

4

Please refer to this manual: FAQ — SunFounder Pironman 5 documentation

5

I did that many times, including fresh new installation on SD card - nothing changed

6

Please contact us at service@sunfounder.com.We will send you a IO replacement.

1 Like
7

Finally got free replacement of extension io board from manufacturer and it works!

1000005506
10000055061080×1440 346 KB

1 Like