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The 2024 Embedded Online Conference

Join in to discuss Yagarto, a free but powerful tool chain for ARM7, combining GNU and Eclipse

Started by Anonymous in comp.arch.embedded16 years ago 4 replies

Hi, just started a new group http://tech.groups.yahoo.com/group/yagarto/ to discuss any subjects around the tool chain Yagarto. This...

Hi, just started a new group http://tech.groups.yahoo.com/group/yagarto/ to discuss any subjects around the tool chain Yagarto. This nice package is non-commercial and supported only by the community of users. Nevertheless, it achieved a certain maturity over the last couple years and for certain, the interface is much more intuitive than just using GDB. There are also some "how to's" that...


Regarding dhcp client problem

Started by jaekkay in comp.arch.embedded19 years ago 5 replies

I am working on a handheld device which consits of ARM7+DSP dual core[TI (TMS 470) board]. I am using modified version of Kiwiknet TCP/IP...

I am working on a handheld device which consits of ARM7+DSP dual core[TI (TMS 470) board]. I am using modified version of Kiwiknet TCP/IP networking stack which contains dhcp client. The device can be configured with static and dhcp ip modes. In dhcp mode the device is not getting ip address through the WLAN. I am using 2003 server as dhcp server. I am able to detect the request from d...


WOW, 32-bit ARM flash controller for $1.47 from Philips

Started by An Schwob in the USA in comp.arch.embedded19 years ago 5 replies

Hi everybody, The LPC2000 forum on Yahoo http://groups.yahoo.com/group/lpc2000/ had a posting today that I consider a huge step towards having...

Hi everybody, The LPC2000 forum on Yahoo http://groups.yahoo.com/group/lpc2000/ had a posting today that I consider a huge step towards having 32-bit micros in almost all applications. An ARM7 device running a stunning 70 MHz starting at $1.47! It has strong communication features such as two 16550 compatible UARTS, 1 SPI, 1 SSP, 2 I2C, 8-channel 10-bit ADC and a Real Time Clock that can b...


Embest offers SBCs with flexible design

Started by Anonymous in comp.arch.embedded17 years ago 2 replies

Embest now offers a series of single board computers with low cost and flexible design. The boards are based on ARM7 or ARM9 CPU like S3C44B0,...

Embest now offers a series of single board computers with low cost and flexible design. The boards are based on ARM7 or ARM9 CPU like S3C44B0, S3C2410, LPC2000, etc. And features with Ethernet, bluetooth, USB, IDE and so on. Special ODM/OEM service can be also provided. More information can be found at: http://www.armkits.com/Product/sbc2410II.asp


SD Card FAT support issues (dosfs, fatfs,fatlib)

Started by Peter Dickerson in comp.arch.embedded18 years ago 49 replies

OK, firstly I should say that I'm aware there has been recent discussion of embedded FAT here. I have looked at Lewin Edwards' DOSFS 1.01, FatFS...

OK, firstly I should say that I'm aware there has been recent discussion of embedded FAT here. I have looked at Lewin Edwards' DOSFS 1.01, FatFS R0.02a and Sham's Fatlib v2.0. I have an ARM7 based instrument that already is in production but would like to a support for external memory cards to store measurement data and configuration. The system only has 128K RAM and 4 MByte Flash internall...


ARM: JTAG problem on developed ARM board

Started by Mad I.D. in comp.arch.embedded15 years ago 4 replies

Hi. I designed an ARM7 board with LPC2478 MCU. Unfortunately, JTAG doesn't work like one would expect. I can download code to FLASH, I can...

Hi. I designed an ARM7 board with LPC2478 MCU. Unfortunately, JTAG doesn't work like one would expect. I can download code to FLASH, I can start debugging, BUT every time it comes to the first STR instruction I get "Could not stop device" ERROR. When I don't step the code it goes to some garbage address. I have ONLY ONE physical pull-up/down resistor on my JTAG 2x10 connector (device is...


TO ULF SAMUELSSON: Why "sigh" at uCLinux?

Started by C. J. Clegg in comp.arch.embedded16 years ago 4 replies

Good afternoon, Ulf. Back in November of 2007, in comp.arch.embedded, you wrote: "I see as many ARM9 users as ARM7 users today and neither...

Good afternoon, Ulf. Back in November of 2007, in comp.arch.embedded, you wrote: "I see as many ARM9 users as ARM7 users today and neither the CM3 or the uC3k will meet the performance of the ARM9 and neither will run Linux/WinCE. - uCLinux? ...sigh!" I've only started reading about uCLinux over the last couple of days but I was wondering why you "sigh" at it. I'm told that the...


Should I really increase OS_MUTEXCNT to exit forever loop?

Started by janii in comp.arch.embedded11 years ago 1 reply

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static...

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static U32 nr_mutex; int _mutex_initialize (OS_ID *mutex) { /* Allocate and initialize a system mutex. */ if (nr_mutex > = OS_MUTEXCNT) { /* If you are here, you need to increase the number OS_MUTEXCNT. */ for (;;); } *mutex = &std_libmutex[nr


Should I really increase OS_MUTEXCNT to exit forever loop?

Started by janii in comp.arch.embedded11 years ago 7 replies

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static...

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static U32 nr_mutex; int _mutex_initialize (OS_ID *mutex) { /* Allocate and initialize a system mutex. */ if (nr_mutex > = OS_MUTEXCNT) { /* If you are here, you need to increase the number OS_MUTEXCNT. */ for (;;); } *mutex = &std_libmutex[nr


Should I really increase OS_MUTEXCNT to exit forever loop?

Started by janii in comp.arch.embedded11 years ago 1 reply

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static...

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static U32 nr_mutex; int _mutex_initialize (OS_ID *mutex) { /* Allocate and initialize a system mutex. */ if (nr_mutex > = OS_MUTEXCNT) { /* If you are here, you need to increase the number OS_MUTEXCNT. */ for (;;); } *mutex = &std_libmutex[nr


Should I really increase OS_MUTEXCNT to exit forever loop?

Started by janii in comp.arch.embedded11 years ago 1 reply

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static...

Our embedded target board is ARM7 based Microcontroller. We used Keil tools, which include Keil RTX-RTOS. /* Filename: RTX_lib.c */ static U32 nr_mutex; int _mutex_initialize (OS_ID *mutex) { /* Allocate and initialize a system mutex. */ if (nr_mutex > = OS_MUTEXCNT) { /* If you are here, you need to increase the number OS_MUTEXCNT. */ for (;;); } *mutex = &std_libmutex[nr


New STR750 ARM7 Family from STMicroelectronics has LOTS of Flash & Peripherals

Started by Bill Giovino in comp.arch.embedded18 years ago 5 replies

http://microcontroller.com/news/STR750_stmicroelectronics.asp Up to 256MBytes Flash and more coming, lots of peripherals, and runs out of the...

http://microcontroller.com/news/STR750_stmicroelectronics.asp Up to 256MBytes Flash and more coming, lots of peripherals, and runs out of the internal Flash at 60MHz. With everything turned the max run current is 90mA @ 60MHz - that comes to 1.5mA/MHz. Regards, Bill Giovino Executive Editor http://Microcontroller.com


PCMCIA interface with LPC2214

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

Dear Friends... For my project I am working with philips ARM7 based LPC2214 microcontroller and now I have to interface PCMCIA GSM modem with...

Dear Friends... For my project I am working with philips ARM7 based LPC2214 microcontroller and now I have to interface PCMCIA GSM modem with the circuit. I need to transmit some data by this modem because of its low cost and I need to go for near about 20,000 boards so interfacing PCMCIA is very benificial cost wise. The problem I am facing I don't know how to interface this modem with LPC2...


Low cost, readily available ARM development / demo kit

Started by Mark Aren in comp.arch.embedded20 years ago 7 replies

Hi all, I am looking for a low cost (

Hi all, I am looking for a low cost (


OS or RTOS Porting

Started by ramumadival in comp.arch.embedded15 years ago 10 replies

Dear All, I am going to work on RTOS porting (or even we call OSAL porting) from Qualcomm chipset to VIA chipset. Here Qualcomm chipset runs on...

Dear All, I am going to work on RTOS porting (or even we call OSAL porting) from Qualcomm chipset to VIA chipset. Here Qualcomm chipset runs on REX RTOS but we wanted to completely replace to Nucleus RTOS on VIA chipset. Assumptions: source code is in C, ARM7 processor, JTAG debugger, open ICE as IDE, Hardware is mobile phone So, to do above...I am really requesting inputs with u all ex...


Philips LPC UART & CAN baud rates with 1 XTAL

Started by StanV in comp.arch.embedded18 years ago 2 replies

Hi all, Anyone some advice or experience on calculating the Xtal freq for a LPC22xx ARM7. I just don't find a correct value to generate...

Hi all, Anyone some advice or experience on calculating the Xtal freq for a LPC22xx ARM7. I just don't find a correct value to generate stnadard UART baudrates (9600, 19200, 38400..) and standard CAN-bus speeds (125,250,500,1000) At this moment i have a 17.456MHz Xtal and this is working fine for the UART. For the CAN-bus, a multiple of 8Mhz should work fine. I tried to get to a...


USB OTG on ARM7 based MCU

Started by Mad I.D. in comp.arch.embedded15 years ago 18 replies

Hello all. I'm designing a system running on (ex Sharp) LH79520 NXP MCU with ARM720T core. I'm currently adding USB OTG function but there...

Hello all. I'm designing a system running on (ex Sharp) LH79520 NXP MCU with ARM720T core. I'm currently adding USB OTG function but there is something bothering me. By now, my system already has x32 SDRAM and x16 FLASH memory. I've done a lot of research about OTG controllers available on the market and picked NXP ISP1362 "Single-chip Universal Serial Bus On-The-Go Controller". It's a mem...


why does the lcd display so lag.

Started by Archer in comp.arch.embedded18 years ago 6 replies

we are using H7202 an Arm7 chip(70MHz) to run linux. When we use X with LCD whose resolution is 640*480 and 8 bit depth, it is too lag to...

we are using H7202 an Arm7 chip(70MHz) to run linux. When we use X with LCD whose resolution is 640*480 and 8 bit depth, it is too lag to run smoothly. would it be better when we use 320*240 resolution? how would i change the resolution? i used fbset to set xres and yres to 320 and 240 seperately, a quarter of display is working. that's not what i wanted. Any help would ...


TFT LCD controller

Started by news.tin.it in comp.arch.embedded15 years ago 29 replies

I need some idea to realize a structure like this: MCU LCD CONTROLLER TFT LCD I'm using a 32 bit MCU (ARM7 or Cortex-M3), supposed...

I need some idea to realize a structure like this: MCU LCD CONTROLLER TFT LCD I'm using a 32 bit MCU (ARM7 or Cortex-M3), supposed to drive external FLASH and SRAM. The TFT LCD has to be a QVGA-sized panel with no internal dedicated controller, has the company does not want to be be tied to a specific display model. We have this model to try with: http://www.data-modul.co


Arm dev-tools for linux ?

Started by Adib Taraben in comp.arch.embedded17 years ago 6 replies

Hello, I am new to ARM. Looking around the embedded specialists (IAR, KEIL) provide Windows tools only. Can someone recommend a Linux based...

Hello, I am new to ARM. Looking around the embedded specialists (IAR, KEIL) provide Windows tools only. Can someone recommend a Linux based tool chain: - IDE with code-editor, compiler, debugger based on JTAG and/or mini Debugger server on target - simulator (do not know if that exists) Is there an ARM7 dev board or device that has an ARM and CPLD connected for a "one fits all" usa...



The 2024 Embedded Online Conference