Vdip1

[mackrackit]

I have never used FIFO mode...

In UART mode I have the jumper as stated above, the two grounds going to ground, 5 Volt pin connected, CTS(pin 10) to ground, RTS(pin 9) to the PIC for flow control, TXD(pin 6) and RXD (pin 8) going to the PIC for data transfer. all other pins are floating.

MCU 8051is not a serial level converter. To connect the VDIP to a PC you will to invert the signal... MAX232 or similar.

[sky071022]

Any PIC that you would recommend to us?
We were planning to use PIC16F688 or PIC16F560. Would that be a good choice?
RTS of VDIP1 is to be connected to which pin of PIC? Any pin of the port?

[mackrackit]

Any PIC that you would recommend to us?
We were planning to use PIC16F688 or PIC16F560. Would that be a good choice?

I think the main thing to consider (in your case) when picking a PIC is to find one that has enough code space ram and I/Os for the application. The smallest PIC I have used with the VDIP1 is a 16F88. As the project progressed I found that I was scrambling for pins. But that happens with a lot of projects.

RTS of VDIP1 is to be connected to which pin of PIC? Any pin of the port?

RTS can be connected to most any pin, just consider ADC and comparators may be on the same pin and need to be shut off.

[sky071022]

Should I include in the program to make PIC to send data to VDIP1 only when RTS is low? Does RTS function in such way?

For the programming part, does it work by just simply sending command through TXD to VDIP1? Any delays to be considered?

Can I have an example of PIC code to make VDIP1 perform data backup of flash drives to another flash drive? We have added an external USB port for VDIP1, but we are just having problems with the programming. We've tried many codes that we wrote ourselves but most fails..

[mackrackit]

Should I include in the program to make PIC to send data to VDIP1 only when RTS is low? Does RTS function in such way?

The link given up in post#3 tells all about writing data to the VDIP1.

For the programming part, does it work by just simply sending command through TXD to VDIP1? Any delays to be considered?

Do you mean for upgrading the VDIP1 firmware? Like I said before, the easy way is to have the new firmware on a flash drive. When the VDIP1 starts the firmware will be updated.

Can I have an example of PIC code to make VDIP1 perform data backup of flash drives to another flash drive?

Nope, I do not have such code.

We have added an external USB port for VDIP1, but we are just having problems with the programming. We've tried many codes that we wrote ourselves but most fails..

If you post your code we might be able to help you figure out what is wrong.

[sky071022]

Do we have to send just the command "210D" to VDIP1 to make it fetch data automatically from host Flash drive to slave Flash drive?

[mackrackit]

6 days left...
for what?