Pb in spi mode with VDIP1 of FTDI

Minos

HI

I have a problem when I use the SPI mode

In fact when I use the USART Mode , it's OK , the Leds LED1 and LED2 blink alternate 2 second

When I insert in the connector USB my USB key, no problem, the key is enumerated by the vinculum.
And the LED2 is On. ( LED1 off )
And if i connect the vinculum to Hyperterminal, there is a message displayed :
Device connected P2

But now if I use the SPI mode, the Leds LED1 and LED2 blink but when I connect a device ( my usb key)
there is'nt no enumerate. And The Led2 is off ( and Led1 off ).

I don't understand.

DogP

The SPI mode of the VNC1L is dumb... I'm not sure why they even call it SPI (it's similar, but no true SPI solution that I know of won't work with it). Luckily, the prop is all software controlled, so you can make it work... have you seen this object: http://obex.parallax.com/objects/305/ ? I personally use the UART mode any time I want to use that chip, but I assume that "SPI" driver works.

DogP

Minos

I 'm obliged to use spi because i want read file in my key usb whitch have height 3Mo.
And by rs232 (uart mode) it's slow
by spi mode (clk=10MHz) it's much quick
And i 'm go into the site http://obex.parallax.com/objects/305/
but the download is : Vinculum_1_1.spin

what is the extension "spin" ?
I don't know this extension and the logiciel whitch understand this file or witch open this file

DogP

I assumed since you posted in the Propeller forum that you're using the Parallax Propeller microcontroller to talk to the VDIP1. If so, .spin is the source code for the program, which you should be able to compile and run using the Propeller Tool. If you're using a different microcontroller (which one?), that file may be useful as an example, but you'll need to write your own code in the correct language, or find an example somewhere for your hardware.

DogP