Hi,

The FT2232H Mini Module allows configuration with both USB Bus-powered and USB Self-powered designs. Can I ask you to double check that you having properly configured the module for your design. Have a look at page 7 of the Datasheet for assistance:

http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_FT2232H_Mini_Module.pdf

Regards,
FTDI Community

Hello,

Ft_Gpu_Hal_Wr8() - will immediately perform a direct SPI write to the desired register.

Ft_Gpu_CoCmd_MemWrite() - places the command into the co-processor list which the API will package into an SPI transfer.

The overheard of waiting on the API to perform the SPI write, versus manually performing the SPI write with Ft_Gpu_Hal_Wr8() is likely the cause of the issue.

Best Regards,
FTDI Community

Hi Jack,

Yes, Vertex2F can handle the full range of coordinates so that you can use the full width of the 800x480 screen.

You can use VERTEX_TRANSLATE_X and _Y to add an offset to Vertex2II too which normally goes up to 511. If you call the VERTEX_TRANSLATE_X command as shown below, it will add an offset of 250 to any following VERTEX2II commands. You can call VERTEX_TRANSLATE_X again after this to set a different offset or to set the offset back to 0 as shown below.

VERTEX_TRANSLATE_X(250*16);
VERTEX2II(500,100,30,0x43); // Letter C from font 30 at ((500+250),100)
VERTEX_TRANSLATE_X(0*16);
VERTEX2II(500,200,30,0x45); // Letter E at (500,200)

Vertex2F can be used in most cases but if you wanted to use bitmap cells then you would use VERTEX2II and the VERTEX_TRANSLATE might come in handy.

Best Regards,
FTDI Community

 

Hello,

In General the wr8s function would do the following:

• Bring CS low
• Write the Address
• Burst write the data buffer
• Bring CS high when the data has been written

Best Regards,
FTDI Community

Hi,

If you have a look at section 4.2 and 4.3 of the FT601 Datasheet you will get more detailed information on the FT245 (Synchronous FIFO mode Protocol) and FT600 (Multi-Channel FIFO Mode Protocol): http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT600Q-FT601Q%20IC%20Datasheet.pdf

If you want to contact support1@ftdichip.com I can assist you further over email.

Regards,
FTDI Community

Hello,

There is no benchmark data available on this however we could contact R&D to request more information on this if it's critical to your needs.

Please contact us at support1@ftdichip.com.

Best Regards,
FTDI Community

Hi,

Yes, you require an EEPROM to communicate in RS485 mode because, as you have discovered, adding an external EEPROM allows selecting the TXDEN for RS485 mode.

When used without an external EEPROM the FT4232H defaults to a quad USB to an asynchronous serial port device. If no EEPROM is connected (or the EEPROM is blank), the FT4232H will default to serial ports.

Adding an external EEPROM allows customization of USB VID, PID, Serial Number, Product Description Strings and Power Descriptor value of the FT4232H. Other parameters controlled by the EEPROM include Remote Wake Up, Soft Pull Down on Power-Off and I/O pin drive strength. Note that the EEPROM contents have no effect on the selected mode with the exception of selecting the TXDEN for RS485 mode when asynchronous serial interface has been selected in software.

I hope this helps.

Regards,
FTDI Community