i'm not sure if numBytesToRead is correct... i don't really know what to
expect. the following code:
while(1)
{
// write
numBytesToSend = 0;
output_buff[numBytesToSend++]=0x6E;
output_buff[numBytesToSend++]=0x01;
output_buff[numBytesToSend++]=0x80;
output_buff[numBytesToSend++]=0x6E;
output_buff[numBytesToSend++]=0x01;
output_buff[numBytesToSend++]=0x00;
numBytesSent = ftdi_write_data(&ftdic, output_buff, numBytesToSend);
//read
numBytesToRead = 5;
int i;
for(i=0;i<10;i++)
{
input_buff[i]=0x00;
}
numBytesRead = ftdi_read_data(&ftdic, input_buff, numBytesToRead);
}
returns: input_buff = [0xcc, 0x33, 0x0, 0x0, 0x0 ...]
i don't understand what this means. is there any doc regarding return codes?
i hooked up a scope to TDI and i'm getting what i expected, sort of... it a
square wave with 25% duty cycle, i expected 50%...
thanks!
On Mon, Feb 7, 2011 at 5:12 PM, Michael Plante <[email protected]>wrote:
> Michael Plante wrote:
> >> These do not appear to be MPSSE commands. Have you looked at AN108? I
> am admittedly
> >> looking at a year-old version. Also, if you're sure your commands are
> right, you might
> >> try printing some of your variables to the console and telling us the
> output, particularly
> >> for numBytesToRead and numBytesRead. I suspect you are not setting
> numBytesToRead correctly, by the way.
>
> Sorry, disregard the part about not being valid commands; I was looking at
> the wrong section. But I still think you're choosing the numBytesToRead
> incorrectly.
>
> Michael
>
>
> --
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>
>
--
Rodrigo.
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