Re: OT: 126x64 serial interface graphics modules
2005-05-10 by jamesasteres
I ve designed-in custom displays with this resolution. If the P/S line is brought out, then serial interface is available. (Serial is also limited compared
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Re: [lpc2000] SSEL1 functionally
2005-05-10 by Jane Highland
Barry, There are already a few postings on this already. SSEL1 needs to be pulled up or tied high, and the pin configuration needs to be set as SSEL1
Re: OT: 126x64 serial interface graphics modules
2005-05-10 by acbraun
... module ... Are you looking for synchronous or async serial? If it s the synchronous link the KS07xx part provides, then you can look at the units from
SSEL1 functionally
2005-05-10 by javida13
The manual states that for the SSEL0 signal, that when SPI is setup as a Master, this signal can be used as GPIO. This statement is not in the description of
Re: SSP Clock Rate
2005-05-10 by javida13
... clock ... = ... I found the problem!! CPSDVSR defaults to 256 with a value of zero
Re: [lpc2000] OT: 126x64 serial interface graphics modules
2005-05-10 by Robert Adsett
Kent Displays recently announced an 1/8 VGA size (240x160) SPI interfaced module. I haven t managed to get any more information than that out of them though.
RTCX pins when RTC is unused
2005-05-10 by digtax
RTC: In my App. I dont use the RTC. How should the pin (RTXC1/2) be left in that case ? And could there be any problem in just Vbat to 3.3V? GTZ
Doubt on IAP in LPC2138
2005-05-10 by balakumar chinuswamy
When i try to do the IAP in LPC2138. I am getting a prefetch abort . please let me know if any solutions. regards Bala [Non-text portions of this message
Re: LPC2132 as DSP processor
2005-05-10 by brendanmurphy37
I d agree: speed of the multiply is only part of the issue. We ve been implementing DSP-type code on 32-bit RISC for a few years now (and on the LPC2000 series
Re: OT: 126x64 serial interface graphics modules
2005-05-10 by roger_lynx
Hi, maybe this pointer below might work for you? --roger http://www.tianma.com/graphic_displays/product_table/tm12864n-g.htm
SSP Clock Rate
2005-05-10 by javida13
I m using the SSP port as an SPI and verifing operation by using the Keil uVision3. Pclk is set to 15Mhz and with this I m seeing a clock of 58,593 out of
Re: PLL Setup problems
2005-05-10 by wildhorsemusic
... 0xAA; ... 0x55; ... 30Mhz ... You need to make sure you are using the correct data size, ie: 8bit (0xAA), 16bit (0x00FF), etc. I think you may be
Re: SD card problem!
2005-05-10 by Sunil Jha
Thanks Clyde for your valuable feedback. It would be further great help to me if you can please let me know.. After Initializing in SPI Mode through CMD0 what
Re: [lpc2000] Re: SD card problem!
2005-05-10 by Clyde Stubbs
... The clock line idle state is high, data is latched on the second (rising) edge. Note that when the card is first accessed, the data output is open drain
Re: OT: 126x64 serial interface graphics modules
2005-05-09 by kevinblackmore_nz
I ve controlled a display from Displaytech with SPI. It was the 12864COG. Their website is www.displaytech.com.hk I m sure your aware of this but you need a
Re: [lpc2000] OT: 126x64 serial interface graphics modules
2005-05-09 by Marko Pavlin (home)
... Check em-marin. They have a controller and complete LCD module with serial interface (I2C): http://www.emmarin.ch/Products.asp?IdProduct=221 But it s not
RE: [lpc2000] Re: OT: 126x64 serial interface graphics modules
2005-05-09 by Greg Deuerling
... Thanks for the link! Those are all char. Displays, not graphic. I need a 128x64 graphics module that has a serial interface. I d prefer synchronous over
Re: OT: 126x64 serial interface graphics modules
2005-05-09 by grantpbt
... module ... I m not sure this is what you are looking for, but try Matrix Orbital and/or Scott Edwards:
OT: 126x64 serial interface graphics modules
2005-05-09 by gregdeuerling
Hello, Does any one know of someone who manufactures a 128x64 graphics module with a serial interface? I ve looked around for an hour or so and have only
Re: FW: [lpc2000] Digest Number 591
2005-05-09 by Peter Maloy
... Agreed! Whenever I optimise DSP-like code, I concentrate on managing the data movement; try to use LDM and STM instructions rather than LDR and STR,
Re: [lpc2000] Re: EINT0 on LPC2106
2005-05-09 by Brett Delmage
... Indeed. Could you please share your solution with the list, if you think others may benefit from it (i.e. avoid the same issue in the future)? A list works
Re: [lpc2000] Re: EINT0 on LPC2106
2005-05-09 by Richard Duits
Please download the User Manual for the device you are using and take a look at the chapter named System Control Block section External Interrupt Inputs .
Capture Inputs on MCB2130
2005-05-09 by drb5599
Hello All, I am using the Keil tools and the MCB2130 eval board until my proto hardware gets built. I have compiled and run just about all the example programs
Re: EINT0 on LPC2106
2005-05-09 by frumbub
Is there any way of chosing on what level the interrupt should trigger (logic 1 or 0)? As it is now it triggers on 0. ... but my
RE: [lpc2000] LPC2132 as DSP processor
2005-05-09 by James Dabbs
... I believe it s 2-5 cycles to execute the MUL instruction. Compared to dedicated DSP s, I ve found the bigger limitation to be ARM s lack of circular buffer
Re: EINT0 on LPC2106
2005-05-09 by frumbub
Problem solved! Thanks for the help. (sometimes it helps just to write down the problems ;) ) ... a led ...
Re: EINT0 on LPC2106
2005-05-09 by frumbub
Yes that stops th infinite loop, but another problem remains. It seems that the ISR dont returns. The system freezes. Any ideas? ... infinite loop.
Re: EINT0 on LPC2106
2005-05-09 by frumbub
... loop. ... Forgot these... /* Constants to setup and access the VIC. */ #define ringCLEAR_VIC_INTERRUPT ( ( unsigned portLONG ) 0 ) #define RING_VIC_CHANNEL
Re: [lpc2000] EINT0 on LPC2106
2005-05-09 by Richard Duits
You need to clear the external interrupt (even with level sensitive interrupts) with like in the following code: void eint_ISR( void ) { vParTestToggleLED( 0
EINT0 on LPC2106
2005-05-09 by frumbub
Hello I am having problems with the EINT0 interrupt. I have searched the posts and tried all suggested sollutions, but my problem persists. The problem is that
Re: SD card problem!
2005-05-09 by Gus
We never tried miniSD but I am assuming it is the same as SD!! and for that I gave you the SPI settings that we have been using for 2 years! By the way, I am
Re: [lpc2000] On KEILs Dhrystone benchmarks --again
2005-05-09 by Michael Anburaj
sorry I mistook Dhrystone/seconds (on your results) for DMIPS. My results are after dividing it by 1757. Then it looks like I have seen better numbers using
Re: [lpc2000] On KEILs Dhrystone benchmarks --again
2005-05-09 by Michael Anburaj
Hi Thiadmer, I am curious about your results. I ran Dhrystone 2.1 on LPC2106 board a year ago. Results:
PLL Setup problems
2005-05-09 by jase_ko
Hi, when I try to set up my PLL config with the following code, the program crashes. Is this the correct use of the registers? thanks. void InitPLL(void) {
Re: Capture pin issues.
2005-05-08 by jase_ko
Should I provide more information?
Re: LPC2132 as DSP processor
2005-05-08 by Karl Olsen
... soren_t_hansen@y... ... The ARM7TDMI has a 8x32 hardware multiplier (the M in TDMI), and the number of cycles the MUL instruction takes depends on the
Re: LPC2132 as DSP processor
2005-05-08 by Karl Olsen
... soren_t_hansen@y... ... The ARM7TDMI has a 8x32 hardware multiplier (the M in TDMI), and the number of cycles the MUL instruction takes depends on the
Re: SD card problem!
2005-05-08 by Sunil Jha
Hi Gus, Actually setting S0SPCCR = 8 makes SPI clock rate = 1.875 MHz (Xtal=12 MHz, PLL MSEL=5 PSEL=2, VPBDIV=2). Can you let me know which speed will be fine
Re: SD card problem!
2005-05-08 by Gus
change these in your code S0SPCCR=8; S0SPCR=0x30; Make sure the hardware CS pin of SPI is connected to VCC look at the schematics on our website
LPC2132 as DSP processor
2005-05-08 by soren_t_hansen
I m making an application on a LPC2132, that must performe a number of DSP operations. To find out how many operations I can perform, I need to know how many
Re: SD card problem!
2005-05-08 by Sunil Jha
Hi Gus, What should be the polarity and phase for SD memory card? thanks, Sunil ... and ... problem.
Re: SD card problem!
2005-05-08 by Sunil Jha
Hi Atanas, I am trying to initialize my Mini SD memory card in SPI mode using LPC2129, but after lots of effort not able to do so. The SPI bus is working with
Clock issue
2005-05-08 by ashermantec
Hello This is my ARM Based work : 1. Act as an I2C PROM via the I2C channel. 2. Receive configuration orders from the I2C channel. 3. Read HW configuration via
Re: [lpc2000] Re: 3.5 logic to 5.0
2005-05-07 by Marko Pavlin (home)
I designed one automatic-test circuit with 3-5V preipheral (device tested). The MCU was LPC932. I used GTL2000 for level shifting. It worked fine, even for
Re: External Reset vs Power Up
2005-05-07 by michael_rubinstein_sar
Bob, You are absolutely right. The Errata has a note on it. Jim E. of Philips was very helpful in pointing this out also. So the moral of the story is: P0.31
Re: New to ARM - Question on GNU Tool Chain and Keil ULINK JTAG
2005-05-07 by Thiadmer Riemersma (ITB CompuPhase)
Welcome John, I can only answer a few of your questions. For the GNU tool chain, I would recommend www.gnuarm.org. That site, under the page Resources lists
LPC2106
2005-05-07 by Amir Sherman
Pl s see below my customer summery of the LPC2106 requirements : 1. Act as an I2C PROM via the I2C channel. 2. Receive configuration orders from the I2C
Re: [lpc2000] Re: 3.5 logic to 5.0
2005-05-07 by Richard Duits
You can also use a pull up resistor to 5 volt, and switch the gpio between low output and input. This works because the GPIOs are 5 volt tolerant (don t do
Re: On KEILs Dhrystone benchmarks --again
2005-05-07 by Thiadmer Riemersma (ITB CompuPhase)
Hello Roger, ... Good point. Based on the claim that the KEIL simulator is cycle accurate and the LPC2294 and LPC2106 using the same ARM7TDMI core, I
Re: On KEILs Dhrystone benchmarks --again
2005-05-07 by Thiadmer Riemersma (ITB CompuPhase)
Hello Rod Moffitt, ... That said, benchmarks followed by analysis can improve your understanding of the system. For example, I have been developing software