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Part Number: DLPDLCR2000EVM
We purchased a BeagleBone Black and LightCrafter DLPDLCR2000EVM and followed instructions in "DLPDLCR2000EVM: Quick-Start Tutorial" https://e2e.ti.com/support/dlp__mems_micro-electro-mechanical_systems/video_and_data_display/f/947/t/621466
PROBLEM: The DLP does nothing when we try "Step 10: As a test, you can bring up the BeagleBone Desktop on the projector with the following [i2cset] commands". (Same as Figure 8 in "LightCrafter Display 2000 EVM User's Guide".)
Likewise, the example /opt/scripts/device/bone/capes/DLPDLCR2000/MplayerTest.py fails to play video.
However, example /opt/scripts/device/bone/capes/DLPDLCR2000/Look.py *does* seem to work -- it displays Checker Box pattern (stored in EEPROM if I understand correctly). Also the DLP does show its splash screen after it's booted.
It seems that the BeagleBone can't access the RGB inputs to the DLPC2607.
Could the problem be related to "panel: probe of panel failed with error -22" entry in dmesg?
debian@beaglebone:~$ dmesg...[ 2.839431] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,000C,1716BBBG1301'[ 2.839461] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4[ 2.864626] bone_capemgr bone_capemgr: slot #0: No cape found[ 2.895614] bone_capemgr bone_capemgr: slot #1: No cape found[ 2.928269] bone_capemgr bone_capemgr: slot #2: No cape found[ 2.958115] bone_capemgr bone_capemgr: slot #3: 'DLPDLCR2000,00A0,TI,DLPDLCR2000'[ 2.966053] bone_capemgr bone_capemgr: initialized OK.[ 2.968695] PM: bootloader does not support rtc-only![ 2.982180] pinctrl-single 44e10800.pinmux: pin PIN40 already requested by 0-0070; cannot claim for panel[ 2.999933] pinctrl-single 44e10800.pinmux: pin-40 (panel) status -22[ 3.012726] pinctrl-single 44e10800.pinmux: could not request pin 40 (PIN40) from group pinmux_bb_lcd_lcd_pins on device pinctrl-single[ 3.036879] panel panel: Error applying setting, reverse things back[ 3.049778] panel: probe of panel failed with error -22[ 3.051925] bone_capemgr bone_capemgr: slot #3: dtbo 'DLPDLCR2000-00A0.dtbo' loaded; overlay id #0
Can you suggest next troubleshooting steps?
Regards, Eric Bakeman
In reply to Eric Bakeman:
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