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The Atmel documentation is a bit confusing. The 4 don't care bytes requred after the 24-bit page address in AT45DB081D are the same 32 don't care bits in AT45DB041B. So, my guessing is that you will be able to use half of the chip memory without making any firmware modifications.

I've briefly compared the two datasheets of AT45DB041B and AT45DB081D DataFlash memories. It seems to me that AT45DB081D might work as a replacement for AT45DB041B in current TC51854 configuration. Once you'll get your new xxxxxx081D DataFlash, you can give it a try. If you'll be able to successfull...

Unfortunately, the current TC51854 firmware will not support AT45DB081D DataFlash memory. There are some differences in AC and DC Characteristics between the AT45DBxxx "B" and new "D" DataFlash families. The new AT45DBxxx "D" DataFlash families require a different communication protocol. Therefore, ...

that is correct.

The “3 Steps Guide Book” is provided for TC51320, TC51553 and TC553/852 controllers.

The supporting documentation for TC51854 controller is included on the CD that came with your product and also available for download from our web site.

Hi guytaar, Unfortunately, we don't provide a source code for our controllers. However, you can utilize the "3 Steps Guide Book" that is included on the CD and designed to assist user in writing own firmware to Atmega16 microcontroller. It includes all basic info, in C language that you will need to...

First of all please make sure that you're using the latest Control Panel software. Please check Touch Screen LCD Module Downloads for the software version. Verify that the selected COM port is not used by another program at the same time. You may also try to connect to a different COM port if availa...

Matt,

Follow the link to the 2.8" Resistive Touch Screen Specs: http://www.tvielectronics.com/Documents/g-51.pdf" onclick="window.open(this.href);return false;.

Let me know if I can be of more help.

The code above assumes that all peripherals have been initialized. Below is an example of initialization of the Atmega16 UART and its PORTs. You might need to change the header (include) files according to your compiler. Typically, header files are included via compiler directives at the beginning o...

Below are some code snippets that can be used in order to test your LCD with the TC553/852 controller and Atmega16 micro. Make sure you connect RxD and TxD from TC553/852 controller to TxD and RxD on Atmega16 and use a common ground (GND). For a connection diagram refer to the most up-to-date TC553/...

Dear Erich, The schematic for TC51854 controller is not available for download at TVI Electronics's web site. It's included in the supporting CD-ROM that comes with the TC51854 controller and also available per request. To request the schematic please contact TVI Electronis and provide with your ord...

TVI Electronics has designed a new TC51320 intelligent LCD controller with an integrated touch screen control that supports Optrex F-51320 128x64 Monochrome Graphic LCDs. It is now available for purchase at TVI Electronics Online Store.

In this case it might be a problem with the firmware, it might became corrupted. Try to reprogram the firmware with the latest available from our web site. If reprogramming the firmware won't help, there might be something wrong with your TC553/852 controller. Consider sending it back for evaluation...

It seems like a problem with your power supply. It doesn't supply enough voltage to the controller and it might be the reason the backlight is dim. If the voltages are too low (below 4.7VDC) the microcontroller won't boot up. Please check your module with a working 9VDC 500mA AC Adaptor and make sur...

I'm not familiar with the MSP430. In our TC553/852 controller we utilize the Atmega16 MCU. You need to make sure your VCC for LCD is 5V. Also make sure you use the proper initialization sequence for your display.