From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krystian Lewandowski Content-Type: multipart/alternative; boundary="Apple-Mail=_3E8E5279-2463-478F-A52D-C8D38198F530" Message-Id: <2B36E1F6-4409-49B5-90CC-01CA7988216F@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 8.0 \(1990.1\)) Date: Sun, 2 Nov 2014 12:49:22 +0100 References: <20141013090751.E007DA0112@smtp.hushmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: Subject: Re: [9fans] Raspberry PI - SPI screen Topicbox-Message-UUID: 22a3e8a6-ead9-11e9-9d60-3106f5b1d025 --Apple-Mail=_3E8E5279-2463-478F-A52D-C8D38198F530 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi, with the code from repo below i was able to display something on = Texy=E2=80=99s 2.8 LCD display (from official Raspberry Pi forum). https://www.youtube.com/watch?v=3DGkJqWSuICXo = This is slow because each operation affects only one pixel. Also SPI is = interrupt based. SPI code is in repo for sure. I=E2=80=99m not sure if = sample app is attached though. But shouldn=E2=80=99t be a problem to put = it there. Krystian > Wiadomo=C5=9B=C4=87 napisana przez Skip Tavakkolian = w dniu 13 pa=C5=BA 2014, o godz. 21:32: >=20 > the composite video works and there are several cheap (in all senses = of the word) LCD displays. >=20 > the adafruit device is not supported, but would be interesting for its = form/fit and the touch input. > if you're inclined to do the work, this fork of the 9pi might be a = good start. >=20 > https://github.com/elewarr/plan9-bcm = >=20 >=20 > On Mon, Oct 13, 2014 at 2:07 AM, > wrote: > What cheap screens do you used with raspberry pi? >=20 > Does this PiTFT work? > = https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-touchscreen-di= splay-raspberry-pi = >=20 >=20 >=20 --Apple-Mail=_3E8E5279-2463-478F-A52D-C8D38198F530 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi,

with the code from repo below i was able = to display something on Texy=E2=80=99s 2.8 LCD display (from official = Raspberry Pi forum).

https://www.youtube.com/watch?v=3DGkJqWSuICXo

This is slow because = each operation affects only one pixel. Also SPI is interrupt based. SPI = code is in repo for sure. I=E2=80=99m not sure if sample app is attached = though. But shouldn=E2=80=99t be a problem to put it there.

Krystian

Wiadomo=C5=9B=C4=87 napisana = przez Skip Tavakkolian <skip.tavakkolian@gmail.com> w dniu 13 pa=C5=BA 2014, o = godz. 21:32:

the composite = video works and there are several cheap (in all senses of the word) LCD = displays.

the = adafruit device is not supported, but would be interesting for its = form/fit and the touch input.

if you're inclined to = do the work, this fork of the 9pi might be a good start.

https://github.com/elewarr/plan9-bcm

On Mon, = Oct 13, 2014 at 2:07 AM, <brankush@hushmail.com> wrote:

What cheap screens do = you used with raspberry pi?

Does this PiTFT work?
https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-tou= chscreen-display-raspberry-pi

= --Apple-Mail=_3E8E5279-2463-478F-A52D-C8D38198F530--