Microcontroller and CFA633

[typhon62]

I have a CFA633 module and I want to hook it up to a TI MSP430F148 micro controller. I'm not having any luck getting the CFA633 to display something. The CFA633 works fine with the CrystalFontz WinTest program. The MSP430 is working fine also.

For now I'm just trying to clear the display. Here is what I think I should be sending it:

ClearDisplay command: 0x06
Length: 0x00
CRC: 0x5B97

I'm sending it thus:
putchar(0x06);
putchar(0x00);
putchar(0x97);
putchar(0xFB);

This does not work. I got the CRC number from the WinTest program. I've also tried swapping the CRC bytes with no luck.

What am I doing wrong ???

Crystalfontz LCD Blog

Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.

 

[CF Mark]

You say the CRC should be 0x5B97, but your sending 0xFB97.

Or is that a typo?

 

[typhon62]

You say the CRC should be 0x5B97, but your sending 0xFB97.

Or is that a typo?

Woops, typo...

Typo aside, am I sending the packet in the correct sequence ?

putchar(0x06);
putchar(0x00);
putchar(0x97);
putchar(0x5B);

Thanks...

 

[CF Tech]

The C source code in this sample program should be fairly portable to your micro. In fact, the sample code is a port of the CFA-633's code.

 

[typhon62]

The C source code in this sample program should be fairly portable to your micro. In fact, the sample code is a port of the CFA-633's code.

Thanks !!!