Controller/processor with MIPI DSI - Page 1
Forum section: electronics / general

author: davorin
author_rank: Unknown
timestamp: June 16, 2015, 06:02:56 am
content: Does anyone know which CPU/controller has a built-in MIPI DSI interface for connecting a small TFT?I know that the Broadcom CPUs used on the Raspberry Pi have DSI, but there is still no driver available after all these years...It should be able to run a Linux system as I would like to build a small clock like mini computer with BT and WLAN...The other option is to hook my round TFT to a FPGA which connects to a small Intel Edison module.

author: nctnico
author_rank: Super Contributor
timestamp: June 16, 2015, 07:05:36 am
content: Freescale iMX6

author: Ribster
author_rank: Frequent Contributor
timestamp: June 16, 2015, 07:21:52 am
content: ST is coming out at the end of the year with a MIPI DSI MCU.http://www.st.com/web/en/press/en/p3678?s_searchtype=keywordhttp://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN1876?icmp=ln1876_pron_press-release-oem_apr2015&sc=stm32f479-pr

author: Scrts
author_rank: Frequent Contributor
timestamp: June 16, 2015, 09:31:13 am
content: You can find RGB to MIPI DSI chips fairly cheap.

author: davorin
author_rank: Unknown
timestamp: June 16, 2015, 08:18:45 pm
content: Hmm..i.MX6 is a little overkill with its graphic capabilities for a small 320x320 round TFT display (o;STM32F4 series looks nice...as I already have a board running a Linux distro....Another option would be to use a Cyclone V SoC FPGA, as their hard wired core has a really good performance...and DSI interface could be integrated in same chip as well....First I need to do a small PCB for interfacing the small 0.4mm Mezzanine connector of the display to my Cyclone V SoC board and start experimenting with the timing and the capacitive touch controller...

author: Ribster
author_rank: Frequent Contributor
timestamp: June 18, 2015, 07:33:41 pm
content: hey davorin,I'm quite interested in your implementation of the MIPI DSI.Over at mike's electronic stuff, you can find a reverse engineeringeffortsuccesof an ipod LCD.That uses the same MIPI-DSI interface, and can come in handy.You can also take a look here. There is code posted on his github as well.https://hackaday.io/project/364-mipi-dsi-display-shieldhdmi-adapterAs i said, i'm interested in doing the same thing in the future.. So feel free to post an update somewhere

author: Yansi
author_rank: Super Contributor
timestamp: June 18, 2015, 08:11:42 pm
content: ST also has new STM32F7 series MCUs, these are Cortex M7, should run 200MHz, has MIPI.

author: Scrts
author_rank: Frequent Contributor
timestamp: June 19, 2015, 12:52:16 pm
content: Quote from: Yansi on June 18, 2015, 08:11:42 pmWhich particular device? Is it going to be CSI and DSI?

author: Yansi
author_rank: Super Contributor
timestamp: June 19, 2015, 04:42:45 pm
content: Isn't the manual available on ST pages? (I don't know, I have access to internal stuff :-) )I can't tell now, bcs I don't know. I haven't toyed much with F7 yet, last time I toy with L4 mostly.And I think that the new F469 should also have the MIPI and the DS and RM should be available on the web.//EDIT: Saidly, no manuals available for public, only NDA. But it is MIPI DSI. Both F479 and F746. (these two should share the same peripherals).

author: davorin
author_rank: Unknown
timestamp: June 19, 2015, 04:50:49 pm
content: Does this mean the STM32F7 manuals will never be publicly available because it contains a display interface normally used for mobile devices?

author: Yansi
author_rank: Super Contributor
timestamp: June 19, 2015, 08:43:44 pm
content: Ofcourse not, sorry if it wasn't clear. But with our company policy it's quite not sure "when or where". I tried to ask, but even internal people couldn't give me any specific answer about that. We must only wait. And wait... The F7's are imho still in test-production.

author: Scrts
author_rank: Frequent Contributor
timestamp: June 21, 2015, 01:57:52 pm
content: Quote from: Yansi on June 19, 2015, 08:43:44 pmDo you know if any of F7 will be automotive qualified?

author: Yansi
author_rank: Super Contributor
timestamp: June 21, 2015, 02:12:01 pm
content: Dont know anything about that, but possibly not. No STM32 has automotive certificate as I know. But I can ask tommorow.