Sign in
Search lpc2000
Subscribe to lpc2000
lpc2000 by Keywords
2106 | ADC | ARM7 | Atmel | Bootloader | CAN | CrossStudio | CrossWorks | DDS | ECos | Ethernet | ETM | FIFO | FLASH | FPGA | GCC | GDB | GNU | GNUARM | GPIO | I2C | IAP | IAR | JTAG | Kickstart | LCD | Linux | LPC | LPC-E2294 | LPC2000 | LPC2100 | LPC2104 | Lpc2106 | Lpc210x | LPC2114 | LPC2119 | LPC2124 | LPC2129 | Lpc2138 | LPC213x | LPC21xx | LPC2210 | LPC2212 | LPC2214 | LPC2292 | LPC2294 | LPC2xxx | LPC3128 | MCB2100 | Olimex | Philips | PWM | Rowley | RTC | RTOS | SPI | SSP | UART | UART0 | UART1 | ULINK | USB | Watchdog | Wiggler
Ads
Discussion Groups
See Also
Discussion Groups | LPC2000 | Low frame rate video on LPC2478
Discussion group dedicated to the Philips LPC2000 family of ARM MCUs
Low frame rate video on LPC2478 - "Joe G (Home)" - Oct 31 1:09:07 2009
LPC ARM GroupHi All,
Has anyone see any examples of low frame rate video on an LPC2478 driving
small TFT.
Any examples or idea's would be appreciated.
Joe
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
Has anyone see any examples of low frame rate video on an LPC2478 driving
small TFT.
Any examples or idea's would be appreciated.
Joe
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
Re: Low frame rate video on LPC2478 - "Felipe de Andrade Neves L." - Oct 31 1:39:27 2009
Well..
The better choice is to use double buffer video, while one frame is being
displayed the next is being writen on other place of the memory.
On the user manual you can find information about guiding double buffering
with interruptions, when a memory read reaches the end of the LCD page, a
interruption is launched, so the program can change the memory page
displaying the next frame.
2009/10/31 Joe G (Home)
> LPC ARM GroupHi All,
>
> Has anyone see any examples of low frame rate video on an LPC2478 driving
> small TFT.
>
> Any examples or idea's would be appreciated.
>
> Joe
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
The better choice is to use double buffer video, while one frame is being
displayed the next is being writen on other place of the memory.
On the user manual you can find information about guiding double buffering
with interruptions, when a memory read reaches the end of the LCD page, a
interruption is launched, so the program can change the memory page
displaying the next frame.
2009/10/31 Joe G (Home)
> LPC ARM GroupHi All,
>
> Has anyone see any examples of low frame rate video on an LPC2478 driving
> small TFT.
>
> Any examples or idea's would be appreciated.
>
> Joe
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
Re: Low frame rate video on LPC2478 - Vladimir Ljaschko - Oct 31 9:54:35 2009
Hi,
The better choice is to place all memory by pictures and look nice video
just changing video page pointer every 20 ms :) With 7" display it will run
2 seconds!
If seriously, my explorations show that LPC2478 just for static pictures.
Just take a look on your pixel frequency - you need to get video stream
approx. with the same frequency. What is a source of your video data? SD
card? Just compare two frequencies.
Regards
Vladimir
----- Original Message -----
From: "Felipe de Andrade Neves L."
To:
Sent: Saturday, October 31, 2009 7:39 AM
Subject: Re: [lpc2000] Low frame rate video on LPC2478
> Well..
>
> The better choice is to use double buffer video, while one frame is being
> displayed the next is being writen on other place of the memory.
>
> On the user manual you can find information about guiding double buffering
> with interruptions, when a memory read reaches the end of the LCD page, a
> interruption is launched, so the program can change the memory page
> displaying the next frame.
>
> 2009/10/31 Joe G (Home)> LPC ARM GroupHi All,
>>
>> Has anyone see any examples of low frame rate video on an LPC2478 driving
>> small TFT.
>>
>> Any examples or idea's would be appreciated.
>>
>> Joe
>>
>> [Non-text portions of this message have been removed]
>>
> [Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )
The better choice is to place all memory by pictures and look nice video
just changing video page pointer every 20 ms :) With 7" display it will run
2 seconds!
If seriously, my explorations show that LPC2478 just for static pictures.
Just take a look on your pixel frequency - you need to get video stream
approx. with the same frequency. What is a source of your video data? SD
card? Just compare two frequencies.
Regards
Vladimir
----- Original Message -----
From: "Felipe de Andrade Neves L."
To:
Sent: Saturday, October 31, 2009 7:39 AM
Subject: Re: [lpc2000] Low frame rate video on LPC2478
> Well..
>
> The better choice is to use double buffer video, while one frame is being
> displayed the next is being writen on other place of the memory.
>
> On the user manual you can find information about guiding double buffering
> with interruptions, when a memory read reaches the end of the LCD page, a
> interruption is launched, so the program can change the memory page
> displaying the next frame.
>
> 2009/10/31 Joe G (Home)
>>
>> Has anyone see any examples of low frame rate video on an LPC2478 driving
>> small TFT.
>>
>> Any examples or idea's would be appreciated.
>>
>> Joe
>>
>> [Non-text portions of this message have been removed]
>>
> [Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of lpc2000 -- send a blank email to lpc2000-subscribe@yahoogroups.com )