Defining the endianness for arm7 MCU

Started by Daniel in comp.arch.embedded19 years ago 2 replies

Hi there, I am struggling with a problem on my lh75411 MCU (arm7) which concerns the endianness. I observed that the endianness changes...

Hi there, I am struggling with a problem on my lh75411 MCU (arm7) which concerns the endianness. I observed that the endianness changes sometimes when uploading a srec file after reset to the MCU. I am using the following script for the M*craigor OCD tool: conn endian little CPSR = 0x13 r13 = 0x2100 r14 = 0x2200 byte 0xfffe2008 = 0x01 word 0xfffe5000 = 0x00005B3F wor...


Macraigor on xp: download problem

Started by jerome in comp.arch.embedded18 years ago 3 replies

Hi, I am using Macraigor tools to try a download into a microcontroller board. I mean I am trying to!!! I type this command under cygwin,...

Hi, I am using Macraigor tools to try a download into a microcontroller board. I mean I am trying to!!! I type this command under cygwin, on XP home: OcdLibRemote -c ARM7 -d WIGGLER and I get the following message: JTAG SDO


Reliable freeware (RTOS and TCP/IP) for ARM7

Started by in comp.arch.embedded16 years ago 10 replies

Hello all, We are looking for very reliable freeware for the ARM7 microcontroller (NXP). The target application is for proffesional use which...

Hello all, We are looking for very reliable freeware for the ARM7 microcontroller (NXP). The target application is for proffesional use which sets high requirements for reliability. The product is very cost-sensitive which has made us looking for freeware alternatives to the commercial/proffessional RTOS and TCP/IP stacks. We are currently considering: http://www.sics.se/~adam/uip...


ARM7 development environment for uClinux

Started by abdul in comp.arch.embedded17 years ago 6 replies

Hi All, I would like to start a small project to woork on uClinux. I am searching for a board of ARM7 core and the full development...

Hi All, I would like to start a small project to woork on uClinux. I am searching for a board of ARM7 core and the full development environment. So please suggest me which board i have to purchase, JTAG emulator and development environment with debugger. As i am doing it on my own, i want to have all these things at the lowest cost possible. Even i m ready to rig up the circuits if the schemat...


ARM7 selection question

Started by Johnny in comp.arch.embedded19 years ago 3 replies

I am looking for the an ARM7 system with the following features: * 256kB on-chip SRAM. * Ethernet MAC (Could be external) * USB Device...

I am looking for the an ARM7 system with the following features: * 256kB on-chip SRAM. * Ethernet MAC (Could be external) * USB Device interface (Could be external) * External interface for several MB of flash memory. My application: * No more than about 10 MIPS processing speed, plus any extra for servicing Ethernet and USB. * Cost sensitive. * Planned to stay in production for 5 year...


ARM7-based AutoCAD slide viewer demo

Started by Chris Burrows in comp.arch.embedded14 years ago

A vector graphics processing demo program written using Oberon-07 can be seen on YouTube: http://www.youtube.com/watch?v=fQcMvLxUmVU The...

A vector graphics processing demo program written using Oberon-07 can be seen on YouTube: http://www.youtube.com/watch?v=fQcMvLxUmVU The hardware used in this example is the ThaiEasyElec 'BlueScreen' board - a self-contained 320 * 240 touch-panel LCD unit driven by an NXP LPC2378 ARM7 microcontroller. The first two images are processed in real time, the second two have built-in de...


Small ARM7 with realtime debug memory access?

Started by Oliver Betz in comp.arch.embedded16 years ago 15 replies

Hello All, are there really still no small (e.g. 128K Flash, 100 Pins) ARM7 derivatives with non-intrusive realtime memory access? As far...

Hello All, are there really still no small (e.g. 128K Flash, 100 Pins) ARM7 derivatives with non-intrusive realtime memory access? As far as I see, they all need an interrupt routine to send information to the host. Maybe I didn't search hard enough? Oliver -- Oliver Betz, Munich despammed.com might be broken, use Reply-To:


Simple/Fast Algorithm for binary logarithm in C (on ARM7)

Started by Tilmann Reh in comp.arch.embedded16 years ago 28 replies

Hello all, in a current ARM7 project I need to do some calculations which include a logarithm. All other math is done with integers (i.e....

Hello all, in a current ARM7 project I need to do some calculations which include a logarithm. All other math is done with integers (i.e. fixed point arithmetic), and I would like to calculate the log fast and with little code - so I don't prefer using FP conversion and the standard math libraries. Can anyone point to fixed-point logarithmic routines I could use (resp. tailor to my need...


Speed problems with ARM7, more detailed post..

Started by webwraith067 in comp.arch.embedded19 years ago 17 replies

I have built a fully functional ARM7 prototype board based on the Atmel AT91R40008 processor. Everything works fine, but the performance...

I have built a fully functional ARM7 prototype board based on the Atmel AT91R40008 processor. Everything works fine, but the performance of the processor is approximately 1/10th what it should be. In a simple in SRAM memory write test, I first copy my code to SRAM, and then run out of SRAM and write blocks of 32 bytes to consequetive locations in an unrolled loop for a total of 9600 byte...


Standard PLC functions in ARM7 ?

Started by lars odlen in comp.arch.embedded14 years ago 3 replies

We need to design a specific I/O unit with on board Boolean logic. Would be good to use industry standard PC based PLC programming tools (because...

We need to design a specific I/O unit with on board Boolean logic. Would be good to use industry standard PC based PLC programming tools (because they are known and existing). Is there ready firmware for the ARM7 that holds the PC communication, the Boolean logic, debugger and the other standard PLC functions? Thankfully Lars.odlen@safeline.eu


Automated Test Solution for Arm7 and Nucleus C?

Started by Anonymous in comp.arch.embedded17 years ago 1 reply

All, A co-worker asked me to do research on automated testing solutions. I am not an embedded systems guy, but I was nonetheless asked to do...

All, A co-worker asked me to do research on automated testing solutions. I am not an embedded systems guy, but I was nonetheless asked to do some research on it. I know we use ARM7 and the Nucleus C compiler. I'm trying to find an automated test solution or two. While I've found basic debugger applications, I am really looking for automated test tools. I've got no idea where to start looki...


Trace32 problem

Started by JY Kim in comp.arch.embedded16 years ago 9 replies

Currently my trace32 has curious problem. Flash download is fine, but when I have set breakpoint, T32 doesn't stop there. I have confirmed code...

Currently my trace32 has curious problem. Flash download is fine, but when I have set breakpoint, T32 doesn't stop there. I have confirmed code works fine, but trace32 doesn't stop. I have two pod(?) for ARM7/9, 9. both has same problem on ARM7 and ARM9 board. And for external memory CPU, instruction is not displayed correctly after running board once. 1st and 2nd byte is same and 3rd and 4...


flash access for arm7

Started by julvr in comp.arch.embedded14 years ago 8 replies

I'm having a problem accessing flash on my arm7 processor, and I can't figure out what I'm doing wrong. I have the following code: ...

I'm having a problem accessing flash on my arm7 processor, and I can't figure out what I'm doing wrong. I have the following code: OUT1("FEEPRO ", GETREG32(FEEPRO)); OUT1("FEEHIDE ", GETREG32(FEEHIDE)); //SETREG32(FEEHIDE, 0xFFFFFFFF); //SETREG32(FEEPRO, 0xFFFFFFFF); // trying single erase: SETREG16(FEEADR, 0x800); SETREG8(FEECON, 0x05); while (((result = GE...


ELF compiler for ARM7 based Real-time embedded OS VxWorks 5.5

Started by Rohan in comp.arch.embedded16 years ago 9 replies

Hi All, I have a hand held Meter Reading Instrument which has the following specifications CPU: Powerful embedded 32-Bit ARM7 microcomputer...

Hi All, I have a hand held Meter Reading Instrument which has the following specifications CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz Operating System: Real-time embedded OS VxWorks 5.5 I have a set of library files and include files etc which came with the device. It needs an elf file instead of the regular exe as executable. which compiler should I used to genera...


Development Board for ARM7 & ARM9

Started by Mike_rod in comp.arch.embedded14 years ago 3 replies

I require a development board with the folowing features: ARM7 or ARM9 chip. 2MB or higher NAND flash 2 MB or higher external SRAM (or...

I require a development board with the folowing features: ARM7 or ARM9 chip. 2MB or higher NAND flash 2 MB or higher external SRAM (or SDRAM) TFT LCD interface (and if possible an LCD module also) of 3.5 inch and higher phy dimensions, resolution 320(RGB) x 240, 16 bit color. onchip LCD controller (e.g. the ARM9 chips) will be preferred I am open to ICs of any make, (ATMEL, TI, NXP, et...


Does free RTOS Object file can fit in ARM7 (Philips 2106) microcontroller?.

Started by Anonymous in comp.arch.embedded18 years ago 7 replies

ARM7 Microcontroller has 128K Flash and 64K RAM, does free RTOS object file can fit in that flash?. Thanks.

ARM7 Microcontroller has 128K Flash and 64K RAM, does free RTOS object file can fit in that flash?. Thanks.


Low power LCD driver

Started by ghazanhaider in comp.arch.embedded17 years ago 3 replies

I am trying to drive a 320x240 LCD using an ARM microcontoller and some SRAM, all for an average of less than 1mA. I cant find an ARM7 MCU...

I am trying to drive a 320x240 LCD using an ARM microcontoller and some SRAM, all for an average of less than 1mA. I cant find an ARM7 MCU with a 320x240 driver (bw, 1-bitter STN, slow refresh). Where can I find an external LCD driver that can do all this for 40uA or lower? Or better is there an ARM7 mcu with a built in LCD driver to match this lcd? The MCU must have an external memory inte...


Searching for JTAG Flash Programmer for ARM7 and AT29c040a

Started by Daniel in comp.arch.embedded19 years ago 10 replies

Hi there! Does anybody has a software which I may use for programming my flash device (AT29c040a) through the MCU's JTAG port? The MCU is...

Hi there! Does anybody has a software which I may use for programming my flash device (AT29c040a) through the MCU's JTAG port? The MCU is LH75411 from Sharp which has a ARM7-TDMI core. I have a wiggler and the macraigor's free OCD programmer in place. Both are working fine for programming the internal RAM of the MCU. For programming the flash device, the OCD programmer is obviously not...


ARM7

Started by achadya in comp.arch.embedded13 years ago 3 replies

Does anyone use the LPC2478 board for development. What resources should be used and what experience will you share. I am looking at it closely...

Does anyone use the LPC2478 board for development. What resources should be used and what experience will you share. I am looking at it closely now but have found that they have a bait and switch going in their organization. --------------------------------------- Posted through http://www.EmbeddedRelated.com


regarding IAP

Started by santhosh-e in comp.arch.embedded11 years ago 1 reply

hi, i am new to arm7 processor want to write to the flash memories .can anybody send API for accessing these sectors regards santhosh babu...

hi, i am new to arm7 processor want to write to the flash memories .can anybody send API for accessing these sectors regards santhosh babu el --------------------------------------- Posted through http://www.EmbeddedRelated.com