DLPC7540EVM: LED PWM RED signal output is not output

Hello Sasaoka,

Looking at the GUI, does the checkbox below the "Red LED" and associated line happen to be checked or not?

Can you perform a "Get" down at the bottom to see the status?

Best,

Aaron

Hello Aarron,

The checkbox under "Red LED" and its associated line in the GUI is checked. I checked the status by running "Get" at the bottom.

Are there any jumpers to set on the EVM board when operating the LED? Or is there any software I need to download?

Hello Aaron,

At first, I shorted J505 with a jumper between 1 and 2 according to your instructions. As shown in the photo.

However, the RED PWM signal is not output. (Check No,1 pin of connector J97)

Is there no other setting required?

The duty of the G and B PWM output waveforms will change when we change the GUI LED current value, but RED will not change.

It's always ’’Low’’.

Best regards,

Sasaoka

Hello Sasaoka,

This is suspicious and I'll have to reach out to the software side of my team to comment on this.

As I am reaching out to them, it would be helpful to include a debug log from J102 RS232 port while the device is being powered and while the GUI settings are being manipulated.

Thank you,

Aaron

Hello Aaron,

I got the debug logs from the J102 RS232 port when the EVM is powered on.

Also, during GUI operations, we confirmed that no matter what operations are performed within [DynamicBlack], nothing is displayed in the log.

Among GUI operations, it appears in the log when you press 'Switch to external Video' in [Video and Color] and when you operate in [Pattern and Images].

Do I also need that log?

This time, I will send the log that is displayed when the power is turned on. It is below.

************************************　log　*******************************************************

Debug opened on URT0
I2C Port 1 initialized as Master port
I2C Port 2 initialized as Master port
I2C Port 0 initialized as Slave port
eeprom: Content validated
Cal data block CWLamp not in EEPROM : Using data from flash
Cal data block SSI present in EEPROM. Data version = 0
Cal data block ADC not in EEPROM : Using data from flash
Cal data block WpcSensor present in EEPROM. Data version = 4
Cal data block WpcBrightness present in EEPROM. Data version = 4
Cal data block XPR present in EEPROM. Data version = 4
Cal data block XPRWaveform not in EEPROM : Using data from flash
Cal data block EdgeBlend not in EEPROM : Using data from flash
Cal data block SurfaceCorrection won't fit in EEPROM : Using data from flash
Cal data block SurfaceCorrection not in EEPROM : Using data from flash
Cal data block BlendMap won't fit in EEPROM : Using data from flash
Cal data block BlendMap not in EEPROM : Using data from flash
API version: 4.5.0.0.0.0
App version: 4.5.0.0.0.0
sysmon: URT Cmd Handlerfailed to start
pca9539: Error - iox failure. APIcc = -7
IT6807 - Configuring IT680x...
digcontrol: Cfg complete
digcontrol: Decoder 2 powerStandby complete
digcontrol: Decoder 5 powerStandby complete
datapath: PowerStandby Complete..
sysmon: DLPA100 not present

illumination: Starting SSI Initialization...
Configured SSI Driver Type = 0.
Configuring sensor failed : -6.
Initializing WPC configuration...
SSI initialization failed.
Sysmon: Transition to normal operating mode
Initializing WPC Failed: -6
Initializing WPC calibration data Passed...
Initializing WPC Brightness Table Failed: 0
datapath: autolock initialization passed
digcontrol.c : line - 194 : digcontrol_powerNormal()
iox_edid_init() failed
digcontrol: powerNormal failed
digcontrol.c : line - 194 : digcontrol_powerNormal()
iox_edid_init() failed
digcontrol: powerNormal failed
digcontrol: powerNormal complete
datapath: dig, adc, dec powerNormal
source: SetUserSFGColor = 1
9
dispfmt_CalculateDisplayArea: X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 1, dispSrc = 1
source: SPLASH address: 0x10522d7c
source: DisplaySplash size = 3840 x 2160
Blank screen is set to splash
dispfmt_CalculateDisplayArea: X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt: minPan, pan, maxPan:0, 0, 0
data = { 3840, 0, 3840 }
dispfmt: minScan, scan, maxScan:0, 0, 0
data = { 2160, 0, 2160 }
dispfmt_CalculateCroppedArea: X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 2, dispSrc = 2

datapath: Transition to IDLING on Vx1(ITE0)
dispfmt_ConfigManualWarp(): LensCorrection enabled = 0
Actuator EEPROM size - 6 (where 0 = 0.125k,1 = 0.25k,2 = 0.5k,3 = 1k,4 = 2k,5 = 4k,6 = 8k)

[Actuator Type]: 128 [AWC WG Auto-Offset]: 0

Actuator Type: 128 Unipolar: 0
XPR Param in EEPROM: MAtch Signature
XPR 4 Way Orientation number: 22
XPR: Act subframe order: 0 3 1 2
XPR_4WAY_TIActGetActuatorData(): Read from EEPROM failed
XPR_4WAY_TIActGetActuatorData(): Read from actuator failed!!!
datapathf: XPR_4WAY_Init Failed
SUCCESS: Product Configuration Valid, System Unlocked
Controller Info: Id = 0x01030059, Name = DLPC7540
DMD Info: DeviceId = 0x600D0096, FuseId = 0x00070008, FuseBitString = 00010000111111111, Name = DLP650TE_ECD_p65_UHD
illumination: Enabling SSI Driver...
sysmon: Transition to normal mode complete
sysmon: Completed _sysReset
sysmon: Init Complete
Startup Logo display time completed - 5097 milliseconds. Starting connector scan

------------------- SCANNING CONNECTOR : Vx1(ITE0) ----------------
Warning: No AFE1000/HW communcation found while attempting to place stand-by (However connector table seem to have a VGA entry)
IT6807 - iteState is ITE_POWERUP
digcontrol: Decoder 5 powerStandby complete

datapath: Transition to SCANNING on Vx1(ITE0)
digcontrol: ConfigureForSearch complete
Event: Source Change Detected on channel
Event: DSM Locked on channel
digcontrol: FillSourceConfig - srcConfig:
TotalArea.PixelsPerLine - 4400,
TotalArea.LinesPerFrame - 2250,
ActiveArea.FirstPixel - 384,
ActiveArea.FirstLine - 82,
ActiveArea.PixelsPerLine - 3840,
ActiveArea.LinesPerFrame - 2160,
PixelClockFreqInkHz - 594000,
inputFrameRate - 59,
srcColorType - RGB.
srcConfig->IsInterlaced - FALSE,
digcontrol: FillSourceConfig complete
Is3D = FALSE
dispfmt: DEI Disabled, Field Scaling Disabled
dispfmt: Input frame rate is 59Hz
dispfmt: input resolution: 3840 x 2160
dispfmt_CalculateDisplayArea: X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt: minPan, pan, maxPan:0, 0, 0
data = { 3840, 0, 3840 }
dispfmt: minScan, scan, maxScan:0, 0, 0
data = { 2160, 0, 2160 }
dispfmt_CalculateCroppedArea: X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 0, dispSrc = 0
******* Try to set Color Profile 0 *******
pictcont: Active Display is 0
pictcont: Set White Peaking: 0
pictcont: Set gamma 0
pictcont: Sharpness 16
pictcont: cscIndex 0
pictcont: tableIndex 0

datapath: Transition to MONITORING on Vx1(ITE0)
gui: ccode 5 receiving GUI message

******************************************************************************************

I have a request.

Is it possible for your company to prepare the same board environment and check that LED RED PWM is not output?

I think it is very important to check whether the same phenomenon occurs in the same environment.

Yours sincerely, 

Sasaoka

Hello Sasaoka,

Could you put a probe to pin 2 of J505? This connects to GPIO 59 and this should be putting out a PWM signal equal to that of GPIO 60  and GPIO 61 of the DLPC7540.

In my lab evaluation, the enable line was always high (pin 1 of J97) this went low when the red was disabled via the GUI.

Please advise if this is different from your board.

I'll get a member of my team familiar with the software to respond to the GUI errors - this might stem from the same issue.

Best,

Aaron

Hello Aaron,

I attached a probe to pin 2 of J505.

Then, when the power was turned on, the RED PWM signal was output.

Furthermore, we confirmed that when changing the RED Current on the GUI, the PWM duty of the probed signal changed correctly.

Good job Aaron！！

Is it possible to output RED PWM from pin 1 of connector J97?

Best,

Sasaoka

Hi Aaron,

The problem is not resolved yet.
The problem can be solved by outputting RED PWM from pin 1 of connector J97 as shown in the circuit diagram.

Until this fix is made, your board will still have a bug.

Please fix this bug.

We manufacture lighting systems based on circuit diagrams.

The lighting system only works when RGB PWM is output from this J97. Support is required until we can fix the EVM firmware, install the corrected version on our board, and get it fully operational.

What I don't know is how to install that modified firmware on our EVM. Please tell me that.

Yours sincerely, 

Sasaoka

As for information,

In Japan there is a holiday called Golden Week, and tomorrow, April 27th to 29th and May 3rd to 6th, are holidays.

Please forgive me for not being able to respond at that time.

Best,

Sasaoka