Hi,
A general question.
When I won’t to write I should put a “0” behind the address.
Should I do it by hand, or are the words clever enough to do this?
My address => $38 = %0111000
After shifting => %111 = $70
Cheers,
Jan
Op 10 nov. 2018, om 21:23 heeft Tristan Williams
Tristan,
I have tried that. No results. Monday I get an Logic Analyser so I can watch
the I2C bus. Hopefully can I figure out what is wrong.
Cheers,
Jan
> Op 10 nov. 2018, om 21:23 heeft Tristan Williams het
> volgende geschreven:
>
> Jan,
>
>> This device is need only one byte per
Jan,
> This device is need only one byte per command, so I have used i2c.c!.
> Do you ave a clou?
but it might be expecting two single bytes, one immediately after the other.
Try
Number digit 2 7SEG i2c.n!
Best wishes,
Tristan
On 10Nov18 17:27, Jan Kromhout via Amforth-devel wrote:
>
Hello Jan,
> The i2c scanner is seeing $38, should i still shift to $70?
Don't be afraid of just trying this. There is nothing that
breaks, if you happen to use a different i2c address.
So I dont' think so, but let me check
> | $ ls -l /dev/ttyUSB0
> | crw-rw 1 root dialout 188, 0
Tristan,
This is my simple code.
The address of the SA1064 is $38
I have checked with the arduino for save playing the frequency of the bus
should be less than 100 kHz.
When I translate the simple code of the arduino to amForth I get this, but no
results.
Even no results with deleting the
Jan,
Have a look at the source your-amforth/common/lib/hardware/i2c.frt
and the comments at the top of the file.
i2c.c! i2c.c@ i2c.n! i2c.n@ i2c.m!n@ already have the i2c.begin and
i2c.end within the respective word. I don't know the Gravitech shield
but if you are sending multiple bytes i2c.n!
Hello Erich,
The i2c scanner is seeing $38, should i still shift to $70?
Cheers
Jan
Verstuurd vanaf mijn iPad
> Op 9 nov. 2018 om 22:30 heeft Jan Kromhout via Amforth-devel
> het volgende geschreven:
>
> Thanks Erich,
>
> Do I need this to start every time I use I2C
>
>
Thanks Erich,
Do I need this to start every time I use I2C
i2c.init.default
Cheers,
Jan
> Op 9 nov. 2018, om 20:56 heeft Erich Wälde het volgende
> geschreven:
>
> Hello Jan,
>
> your i2c address: "$38", is this the 7bit address? You might
> need to shift it by one position to "$70".
>
Hello Jan,
your i2c address: "$38", is this the 7bit address? You might
need to shift it by one position to "$70".
Just an idea.
Cheers,
Erich
Jan Kromhout writes:
> Hi,
>
> This is my first step on the I2C road.
> I have a Gravitech shield for the Arduino, that work well.
> The code is very
