FT800

mototest2 · Joined: 24 Dec 2006 Posts: 53

Button start_stop work good, but also work when I prees dial gauge, tried it ?
other buttons work normally in this configuration .
the problem is of a different type

mototest2 · Joined: 24 Dec 2006 Posts: 53

Now I resolved problem:)
Always before every created element on display have to be TAG xx even before text , number etc.
now work all correctly

Thanks for helps

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

I see now what you mean with the Dial.

The use of TAG can cause problems if not used correctly, if you don't assign a TAG
to an Object it will be assigned the previous TAG used.

When you assign(a TAG) and draw the Start/Stop button and then draw
the Dial without assigning a TAG, the Dial will have the same TAG value
as the Start/Stop button meaning if you press on the Dial you will get the
same value as the Start/Stop button (like 2 buttons on the keyboard having
the same ASC value).

Some solutions:
Possibly use a constant for the unused Objects like constant not_used = 1
TAG not_used
OR
use TagMask 0 to disable the Tag Mask Buffer so no TAG writes are made.

BTW is this an Automotive project ?, is the dial RPM (possibly Diesel engine if the dial is only 2000).

mototest2 · Joined: 24 Dec 2006 Posts: 53

Now I understand how it use Smile

Yes, this is automotive project, and gauge is for reading RMP from diesel pump
Thanks for help

Bob.

mototest2 · Joined: 24 Dec 2006 Posts: 53

I have two qeestion yet for you, can I read coordinates x,y for pressed point on display ? because this is easy for deploy graphic elements on the display
and second question, in demo4 is screensaver , it don't work correctly with my board, I don't see bitmap "Lenaraw.bin" I see only noise in the square, where is problem ?

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

mototest2 · Joined: 24 Dec 2006 Posts: 53

ok, thank you
yes I read CAN messages, but this is commercial project and I don't want speak about details on forum Smile

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

Ok, np problem, when you said you wanted to read the x/y coordinates I was not sure
if there was a easier way to do what you want without making it complicated.

mototest2 · Joined: 24 Dec 2006 Posts: 53

I have question, is possible use ISP SOFT for FT800 ? because I have one board without wires to SPI, I have only wires to JTAG ,maybe possible is connecting soft spi to jtag pins ?

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

Using Software SPI it works well, but as for the other hardware issue I can't answer
as I am not familiar.

mototest2 · Joined: 24 Dec 2006 Posts: 53

I ask, because my m128can don't work, maybe I have bad config spi ?
For test I use the same pins as hardware spi, but spi I config SOFT
I have :

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

PeterM · Joined: 09 Jun 2008 Posts: 118

mototest2

mototest2 · Joined: 24 Dec 2006 Posts: 53

In your example is hard spi, HARD works well, can you show me your working example with SOFT SPI ?

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

FT800 only works with HW SPI ! ( i must add , when using config ft800 , your original files i used do work with soft spi)
It did not make any sense to me to use slow bit bang mode.
But if you want it you can alter the lib and add some code to use soft spi.