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Re: [TODO] The New STM32F429/F439
Posted: Sat Aug 31, 2013 9:17 pm
by Abhishek
There are 128 pins broken out on headers available.
Clearly, this time they used a 144-pin device, so lesser pin conflicts it seems.
But the question is: are they still bundling an audio codec this time? And what is the big black thing below the ST logo? [looks like some sensor]
Accelerometer is there, it seems, just above the LCD.
Re: [TODO] The New STM32F429/F439
Posted: Sat Aug 31, 2013 10:11 pm
by Giovanni
That black thing could be the transformer for the LCD backlight.
Giovanni
Re: [TODO] The New STM32F429/F439
Posted: Sun Sep 01, 2013 9:43 am
by Tectu
The mysterious black thing is not a transformer at all but a connector. It's used on other ST boards as well to hook up some antennas for their wireless eeprom stuff. you can simply plug in a 2.54mm pin header:
http://abload.de/img/img_00000317b1aj7.jpghttp://abload.de/img/img_000003187pliq.jpghttp://abload.de/img/img_00000319zglei.jpghttp://abload.de/img/img_000003231slzf.jpghttp://abload.de/img/img_000003207tyct.jpg~ Tectu
Re: [TODO] The New STM32F429/F439
Posted: Tue Sep 03, 2013 4:41 pm
by russian
digikey Ship Date Estimate - 10/4/2013
I am ordering myself one for $42
Re: [TODO] The New STM32F429/F439
Posted: Tue Sep 03, 2013 4:46 pm
by Tectu
resset, can you write a GDISP driver ASAP? It's an ILI9340 on there, we already have a some ILI93xx drivers so there shouldn't be much to change beside display resolution and stuff like that.
~ Tectu
Re: [TODO] The New STM32F429/F439
Posted: Mon Sep 09, 2013 9:45 pm
by resset
Tectu, maybe I could, but I have no hardware to test code on. Also, I am not going to be able to order this board in very short time
Re: [TODO] The New STM32F429/F439
Posted: Wed Sep 11, 2013 11:13 pm
by tronicgr
Its official!!
http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/PF259090
- stm32f429i-discovery.jpg (161.57 KiB) Viewed 9368 times
Its interesting that the ST site mentions Unit Price only $24 !!
Thanos
Re: [TODO] The New STM32F429/F439
Posted: Thu Sep 12, 2013 9:40 am
by mobyfab
Finally!
From the manual:
TFT LCD (Thin-film-transistor liquid-crystal display)
The TFT LCD is a 2.41" display of 262 K colors. Its definition is QVGA (240 x 320 dots) and
is directly driven by the STM32F429ZIT6 using the RGB protocol. It includes the ILI9341
LCD controller and can operate with a 2.8 ±0.3 V voltage.
64-Mbit SDRAM (1Mbit x 16-bit x 4-bank)
The 64-Mbit SDRAM is a high speed CMOS, dynamic random-access memory designed to
operate in 3.3 V memory systems containing 67,108,864 bits. it is internally configured as a
quad-bank DRAM with a synchronous interface. Each 16,777,216-bit bank is organized as
4,096 rows by 256 columns by 16 bits. The 64-Mbit SDRAM includes an AUTO REFRESH
MODE, and a power-saving, power-down mode. All signals are registered on the positive
edge of the clock signal, CLK.
The STM32F429ZIT6 MCU reads and writes data at 80 MHz.
This should give a lot of freedom to play with the LCD and load apps from an SD card to run them in the SDRAM.
Re: [TODO] The New STM32F429/F439
Posted: Thu Sep 12, 2013 10:05 am
by Giovanni
It is nice to have lots of RAM but probably executing code from there would hurt performance. I think it is meant mainly as buffer for advanced graphics.
Giovanni
Re: [TODO] The New STM32F429/F439
Posted: Thu Sep 12, 2013 4:12 pm
by Tectu
Hmm... Giovanni, probably we should put out some bounty for the first one who delivers full ChibiOS/RT + µGFX support
~ Tectu
