DLP®︎ 产品论坛 - 最近的话题

DLPLCRC900EVM: DLPLCRC900EVM display issue

刚卢 — Fri, 29 May 2026 07:26:34 GMT

Part Number: DLPLCRC900EVM

Purchase 15 DLPLCR65EVM and 15 DLPLCRC900EVM. After testing, it was found that 10 sets have problems. The phenomenon is that they can display logo and other information, but when connected to a computer through HDMI and USB, there is a flashing screen. The specific screenshot of the flashing screen is as follows.

RE: DLPLCRC900EVM: DLPLCRC900EVM display issue

Tristan Bottone — Tue, 02 Jun 2026 19:47:15 GMT

用户您好，

感谢您联系我们并使用 E2E 论坛！我们团队的专家将尽快查看您的帖子并回复您！

此致，

特里斯坦·博托内

DLPLCRC900EVM: DLPLCRC900EVM

刚卢 — Fri, 29 May 2026 06:50:49 GMT

Part Number: DLPLCRC900EVM

Purchase 15 DLPLCRC900EVMs and 15 DLPLCR65EVM. There are 10 sets showing abnormalities. The specific phenomenon is abnormal display of startup logos, etc. When connected to a computer through HDMI and USB interfaces, the screen flashes. After investigation, it has been determined that 10 DLPLCRC900EVMs have quality issues.
The following image is a screenshot of the flashing screen

DLP3940S-Q1: Inquiry about FPGA necessity and quincunx algorithm source code for DLP3940S-Q1 + DLPC231S-Q1 chipset

Jason Huang — Thu, 28 May 2026 09:53:18 GMT

Part Number: DLP3940S-Q1

Dear TI Support Team,

I am currently evaluating the DLP3940S-Q1 chipset (paired with DLPC231S-Q1 controller) for a puddle light application. I have a few questions regarding the system architecture and the resolution accelerator implementation.

1. Is the external FPGA necessary in the application block diagram?

I understand that in the typical HUD reference design, an FPGA is used as a resolution accelerator to convert the 1920×800 orthogonal display input into a diamond-compatible format (quincunx). However, I also noticed that the DLPC231S-Q1 display frame buffer can natively support up to 1,536,000 pixels, and the FPGA's output (2716×1130/2 ≈ 1,534,540 pixels) fits within this limit.

Could you please clarify whether the FPGA is strictly required for the chipset to function, or if it is optional? If it is optional, could you provide more details about the system architecture without the FPGA?

2. How to implement the quincunx conversion on an SoC instead of FPGA?

I saw in the documentation that "this resolution accelerator routine can be offloaded from the FPGA to be performed as a pre-processing step on a high-bandwidth host processor, thereby bypassing and eliminating the need for the FPGA."

Could you please advise on how to implement this quincunx conversion on a typical automotive SoC? What are the minimum performance requirements (e.g., processing bandwidth, memory, GPU computility) for the host processor to handle this preprocessing in real-time?

3. Where can I obtain the quincunx algorithm source code?

I understand from the documentation that "TI provides source code and a royalty-free license to the quincunx algorithm which can be implemented on the domain controller, HUD processor, or FPGA." Could you please provide guidance on how to access this source code? Is it available for download from the TI website, or do I need to request it through an NDA with TI?

Additionally, are there any application notes or reference designs available that demonstrate the quincunx algorithm implementation on an SoC or GPU?

Thank you for your time and support. I am looking forward to your response.

Best regards,
Jason

DLP4500: 电脑没办法连上

ZHANG YANDONG — Wed, 27 May 2026 06:12:44 GMT

Part Number: DLP4500

RE: DLPC910: DLPC910固件的需求

Links — Mon, 25 May 2026 10:55:02 GMT

您好，

目前官网暂无该器件的固件可以提供。

DLPC910: DLPC910固件的需求

XUNHUA HUang — Mon, 25 May 2026 09:33:18 GMT

Part Number: DLPC910

我们在中国代理商处购买了DLPC910，但其不提供固件，你们能提供相应的固件给我们？

RE: DLPC910: DLPC910固件的需求

Links — Mon, 25 May 2026 10:54:58 GMT

您好，

目前官网暂无该器件的固件可以提供。

DLPC910: DLPC910固件的需求

XUNHUA HUang — Mon, 25 May 2026 09:30:18 GMT

Part Number: DLPC910

我们在中国代理商处购买了DLPC910，但其不提供固件，你们能提供相应的固件给我吗？

DLPC3479: 如何在不使用评估板电路的情况下将pattern数据写入flash中并正确启动内部图案流模式

zhihao deng — Sat, 23 May 2026 02:55:09 GMT

Part Number: DLPC3479

亲爱的TI工程师

你好！设计的电路采用的是FPGA控制DLPC3470主从控制＋DLPA3005＋DLP4710lc，采用ti的gui生成的pattern.bin文件，转化为coe文件，并采用如下指令 DE -> DD -> E0 -> D0轮询 -> [DF+E1/E2]，将pattern文件正确写入PATN区域。但是后续采用

92 00 00 00 00 00 // 禁用 Trigger Out 1

92 01 00 00 00 00 // 禁用 Trigger Out 2//

90 00 // 禁用 Trigger In，自由运行(不等待外部触发)

94 00 // 禁用 PAT_READY

98 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 重载序列表(24字节,byte0=02h)

05 04 // 进入光控制 - 内部图形流模式

9E 00 FF // Start, RepeatCount=FFh(无限循环)

但是没能正常出图，请问我写入的bin文件是否正确？擦除PATN区域只写入pattern.bin文件中的内容是否正确？是否漏了相关文件？内部图案流的调用是否正确？

此致

敬礼！

邓

2026/5/23

DLPC120: Where could I get the DLPC120 Automotive Control Program (Object) software according to DLPU059

Jason Huang — Mon, 18 May 2026 01:57:14 GMT

Part Number: DLPC120

According to the DLPU059 ：

1. Install Automotive Control Program (ACP).

Click “Access” on DLP Auto HUD Gen 1.5 - DLPC120 Automotive Control Program (Object)

Download the latest version of the Automotive Control Program (ACP) from the Automotive Control

Software Section:

There is no ACP software in my account, where and how could I get the access?

RE: DLPC120: Where could I get the DLPC120 Automotive Control Program (Object) software according to DLPU059

Taylor — Mon, 18 May 2026 02:07:03 GMT

请点击下面链接申请

https://dr-download.ti.com/secure/software-development/software-programming-tool/MD-m5OwO09Onp/01.00.00.00/dlpc106.zip

如果申请没有通过，我们这里并没有审批权限，请联系客服部门说明情况

客户支持中心 | TI.com.cn

RE: DLPC120: Where could I get the DLPC120 Automotive Control Program (Object) software according to DLPU059

Taylor — Mon, 18 May 2026 02:04:22 GMT

您好，

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

DLP3010LC: 寻找 DLP3010LC 的“裸芯片+驱动板”方案（非 EVM）

jiaxuan feng — Sat, 02 May 2026 11:52:21 GMT

Part Number: DLP3010LC

各位 TI 工程师好，

我们正在进行一项基于 DMD 的空间光调制实验，实验需求如下：

1. 光源：使用外部的激光器直接照射 DMD 芯片表面。

2. 图案控制：需要通过电脑方便地加载自定义图案到 DMD 上显示，例如通过 USB 连接和 GUI 软件或 SDK 操作。

3. 硬件形态：我们需要的是一套 “裸 DMD 芯片 + 配套的驱动控制主板”，不需要像标准 EVM 套件中自带的 LED、光机等任何光学引擎部分。

想要请教几个问题：

1. 产品/方案推荐
TI 或 TI 的第三方合作伙伴是否提供可直接购买的、针对 DLP3010LC 芯片组的裸驱动主板？即一块已经集成了 DLPC3478 控制器和 DLPA200x 电源管理、带有 DMD 接口和 USB/PC 通信功能的电路板。如果提供，请告知相关型号或获取途径。

2. 软件支持
上述裸驱动主板方案是否配套提供电脑端的 GUI 软件或 SDK，以便我们无需编写底层固件即可上传并显示自定义的波带片图案？

3. 光源兼容性与安全限制
DLP3010LC 芯片能够承受的最大光功率密度是多少？是否有官方给出的安全阈值？

请注意：我们不希望购买完整的评估套件EVM不在我们的考虑范围内，因为其自带的光学引擎和 LED 光源并非我们所需，且会造成浪费。我们只寻求裸芯片+裸驱动板的解决方案。

DLPC3479: 关于内部图案流模式帧率的提问

zhihao deng — Tue, 28 Apr 2026 13:32:18 GMT

Part Number: DLPC3479

亲爱的ti工程师

你好！我在查看DLPC3479的相关信息时，了解到在外部图案流模式下，由于像素时钟的限制，1bit单色图案最大的帧率是1440Hz，因为像素时钟最大为155MHz，但是在查看内部图案流模式下，没有发现相关说明。查阅DLPC3479 固件 v8.4.0 发布说明发行说明，发现最短的照明前时间+照明时间+照明后时间 = 200us+171us+31us =402us，也就是大约2487Hz的帧率，与DLP4710LC 数据表、产品信息和支持 | 德州仪器 TI.com.cn 中的2487Hz相吻合。当然，DLPC3479 固件 v8.4.0 发布说明下的外部图案流模式的最短时间限制也是402us。请问DLP4710+DLPC3470+DLPA3005这套芯片组合在内部图案流模式的最大帧率可以到2000Hz吗，还是和外部图案流模式一样只支持1440Hz呢？

此致

敬礼

deng

2026年4月28日

DLPC120-Q1: DLPC120配置文件中默认Effective Output = 75 %

nkz — Thu, 23 Apr 2026 07:27:15 GMT

Part Number: DLPC120-Q1

尊敬的TI工程师你好！

请教一下如果我将DLPC120亮度拉到最大65535或者说RGB占空比给到最大59000，按照配置文件CFG_EVM_RevC_2C653471_20180111_COR_MP_v3.cfg 中的描述，

<Data>
<LDCIndex>0</LDCIndex>
<SEQIndex>0</SEQIndex>
<Mode>CM</Mode>
<Pulses>0</Pulses>
<Attenuation>100</Attenuation>
<Comments>Effective Output = 75 %</Comments>
</Data>

我的实际有效输出是不是只有我设置的亮度值的75%？如果是的话，我能不能将有效输出给到100%呢，我直接在这个配置文件中修改为100%可以吗？我想输出100%该怎么做？

期待您的答复，谢谢！！

DLPC120-Q1: DLPC120 RGB pwm值设置问题

nkz — Wed, 22 Apr 2026 11:32:29 GMT

Part Number: DLPC120-Q1

TI的工程师您好！
在调试DLPC120时，使用DLPC120 ACP软件将DLPC120设置为校准模式，默认RGB 的PWM值和current limit 值分别为31252、45073、34706、59000。
此时如果我再将RGB的PWM值加大的话，发现RGB灯板亮度与灯板电流没变化。将RGB的PWM值调小的话有效果，调大无效。这是什么原因呢？求解一下，谢谢！

DLPC120-Q1: dlpc120背光RGB占空比控制问题

nkz — Wed, 22 Apr 2026 11:30:06 GMT

Part Number: DLPC120-Q1

DLP7000: DMD有三行微镜无法控制，疑似为软排线老化断裂导致，请教一下微镜无法控制有无其他原因，软排线的型号以及TI公司能否提供维修服务

Chen Jiehao — Tue, 14 Apr 2026 09:33:06 GMT

Part Number: DLP7000

DLPC230S-Q1: DLPC230S通过WritePwmControl函数控制三路pwm，显示报错240：command not available for this preduct type

fly fly — Fri, 10 Apr 2026 01:31:53 GMT

Part Number: DLPC230S-Q1

DLPC230S通过WritePwmControl函数控制三路pwm，显示报错240：command not available for this preduct type，这是为什么，DLPC230S这款芯片不支持该函数功能吗

DLP4710LC: cz3479无法初始化

ming yao — Fri, 03 Apr 2026 05:24:34 GMT

Part Number: DLP4710LC

CZ3479+DLP4710可烧录固件，也可以PIN能通物理地址，但无法初始化

DLP4710EVM-LC: DLP4710EVM-LC How to solve Failed to write to I2C port via Cypress USB-Serial adapter.

w w — Wed, 01 Apr 2026 08:35:19 GMT

Part Number: DLP4710EVM-LC

When I was burning the stripes, I clicked on projection before he finished burning, which caused this problem. How can I fix it?

DLPC900: Question about DLPC900 J26 external parallel video input

Nuoyi Ye — Wed, 01 Apr 2026 05:56:28 GMT

Part Number: DLPC900

Hello TI team,

I am working with the DLPC900 EVM and would like to ask about the J26 external parallel video input interface.

I mainly have two questions:

Is there any existing TI or TI-partner hardware solution that can directly mate with J26 and provide the required parallel RGB video input?
I would like to know whether there is any already-developed source-side board or module, so that I do not need to design the whole interface from scratch.
If there is no ready-made solution, what is the recommended way to design the source side?
For example:

which document should be the main reference for the J26 parallel RGB input timing,
whether an FPGA is the recommended approach,
and whether there is any reference design or example for generating the required parallel RGB video source.

My goal is to use a high-speed parallel RGB video source for DLPC900, so I would appreciate any guidance on whether there is an existing solution or how to design one properly.

Thank you very much for your help. I apologize if my questions are too basic, and I would greatly appreciate any guidance you can provide.

DLPC900: Regarding the hardware design issues of DLPC900

Diao shucheng — Sun, 29 Mar 2026 16:31:09 GMT

Part Number: DLPC900

Hi,Ti Team:
Recently, we have been using two DLPC900 devices to drive DLP9000.

The application scenarios are as follows:
1. Use a single DLPC900 with dual ports to simultaneously input image data from the FPGA side.
2. Use the video pattern mode, with single-color light usage, and trigger the camera to take pictures when the single-color light is exposed.

The questions are as follows:
1.Currently, only 8-bit image data is input, and only the blue LED is used. Is it feasible in the hardware design to connect only one channel to the RGB input pins of the DLPC900 (using a single DLPC900 with two RGB channels connected to 1 8-bit signal each), and leave the RG channels unconnected or grounded?Or is there another better design?
2.Can the firmware provide for us? Does the firmware distinguish between single-color light firmware and RGB firmware?
3.Will this affect the final brightness of the LED?

DLPC900: 关于DLPC900芯片硬件设计相关问题

Diao shucheng — Sun, 29 Mar 2026 05:05:46 GMT

Part Number: DLPC900

hello，各位大佬们，下午好：

近期我们在使用2颗DLPC900驱动DLP9000，应用场景如下：
1、使用单个DLPC900 双port同时从FPGA端输入图像数据。
2、使用video pattern mode，单色光使用，单色光曝光时触发相机拍照。
问题：
1）目前使用仅输入8位图像数据，实际仅使用蓝色LED，请问在硬件设计上，DLPC900的RGB输入引脚，是否可以只接一路通道（单个DLPC900，两个RGB通道分别接1路8位信号），RG通道悬空或者接地，是否可行？或者是别的更好的设计？
2）固件是否能够提供一下？固件是否区分单色光固件还是RGB固件？
3）上述设计是否会影响LED的最终亮度？

期待大佬们的早日恢复，谢谢。

Arabic	Hebrew	Polish
Bulgarian	Hindi	Portuguese
Catalan	Hmong Daw	Romanian
Chinese Simplified	Hungarian	Russian
Chinese Traditional	Indonesian	Slovak
Czech	Italian	Slovenian
Danish	Japanese	Spanish
Dutch	Klingon	Swedish
English	Korean	Thai
Estonian	Latvian	Turkish
Finnish	Lithuanian	Ukrainian
French	Malay	Urdu
German	Maltese	Vietnamese
Greek	Norwegian	Welsh
Haitian Creole	Persian

Arabic	Hebrew	Polish
Bulgarian	Hindi	Portuguese
Catalan	Hmong Daw	Romanian
Chinese Simplified	Hungarian	Russian
Chinese Traditional	Indonesian	Slovak
Czech	Italian	Slovenian
Danish	Japanese	Spanish
Dutch	Klingon	Swedish
English	Korean	Thai
Estonian	Latvian	Turkish
Finnish	Lithuanian	Ukrainian
French	Malay	Urdu
German	Maltese	Vietnamese
Greek	Norwegian	Welsh
Haitian Creole	Persian