None: How is send data without lwip func.
Hi; i use lwip tcp/ip raw.. tcp_echoserver.c is running my project.It's working no problem. But i want send data while loop in main.c.. i write; while(1) { mx_lwip_process(); hal_delay(250);...
View ArticleARM: TCP connection cable test (1 Replies)
Hi every one, I developed a embedded system with lpc17xx (Cortex m3) equipted with interface ic KS87Bl for Ethernet communication.there are two LEDs in RJ45 which indicate that the CAT5 cable is...
View ArticleARM: Keyboard and mouse with a single TLC but how about the descriptors?
Hi everyone, I am writing code for handling two HID devices on a single microcontroller (LPC11U24), and I am basically following Tsuneo's advice of handling it using TLCs. My question is: if this is...
View ArticleC51: 8051 Stop Mode — External Interrupt Polling? (1 Replies)
I inherited a physical product that needs to function like this using an 8051 in STOP mode. My user manual is a little light on STOP mode implementation for 8051s. I can't get this to work, does...
View ArticleC51: Software to execute assembly level programe. (1 Replies)
Software to execute assembly level programe.
View ArticleARM: How to make the firmware as a bin file ? (1 Replies)
How to make the firmware as a bin file ? Hi. I'd like to make and upload the firmware file into STM32F103C8 board by using UART. Especially, STM32F103C8 board have boot mode switch and uart connect....
View ArticleARM: ledblink.axf: Error: L6218E: Undefined symbol SystemInit (referred from...
Hi all, i am new to this controller LPC1768 i create new project in keil microversion 4 and try to run the program on that time the ide showing this error ledblink.axf: Error: L6218E: Undefined symbol...
View ArticleARM: RTX Critical Sections (6 Replies)
Hi, I am trying to port a library that is working with FreeRTOS to RTX. The microcontroller is the same: STM32F4. The library uses critical sections. I have tried using the same implementation for the...
View ArticleARM: Configuring interrupts in KL25Z cortex m0+ (1 Replies)
Hello, I am currently working with FRDM KL25Z board. I wish to write a code for object counter using interrupt. I don't know how to program nvic for this purpose. It will be of great help if someone...
View ArticleARM: FRDM-K64F Keil demo not working (1 Replies)
I have purchased 2 nos of FRDM-K64F development kit from freescale. I am trying out example demo code given on keil website for FRDM-K64F development kit....
View ArticleNone: Timer interrupt on stm32f103 (2 Replies)
The weather is fine, so I'm having a little suprise with timer interrupt on update event. I thought that if timer is configured to count up, update event will occure just after the overflow, i.e. when...
View ArticleARM: Debugger not responding (4 Replies)
Hello all, I am using the MDK-Arm Version 5.24a (July 2017) on a Windows 10 Virtual Machine, and whenever I try to go into the debugger (for the second time) the program becomes not responding. The...
View ArticleARM: BUG: fmaf() large magnitude slower than a*b+c, __fmaf_hardfp() bugged
Using arm compiler 6, on a Cortex M7 I found a hard bug using fmaf in some linear interpolation that is iterated in a large 2d image loop. When I change it to simply a*b+c I see the assembler has...
View ArticleC166: Need Help on Flash Programming_C167 (2 Replies)
hi all, I am new one in C167 and keil. I checked some example of C167 and write a small C program of like LED blinking. Now i would like to check this on real environment. i have SAB-C167-LM...
View ArticleNone: Error: Flash Download failed - "Cortex-M4 (9 Replies)
Hello, I'm working with µVision now. I have created a project and I want to load it on my evaluation board MCB4300 (LPC4350). If I click on "Build" I see "0 Error(s), 0 Warning(s)", but if I...
View ArticleC166: Key de-bouncing in 4x4 matrix keypad (5 Replies)
I'm using 4 x 4 keypad to send the output to 2 7-segment LED. problem: key de bouncing problem Summary problem: when I press key, it shows both digit on the left and right. For example, if I first...
View ArticleARM: STM32F7 Discovery RTX UART example (2 Replies)
Hello all, Does anyone knows where i can find a working example UART DMA Rx/Tx under RTX? Or anyone can share one. I intend to use it for communication between XBEE and an STM32F746 Discovery board...
View ArticleC51: ASM CRC (3 Replies)
Hello All, I have this asm crc calculation code: ADDCHECK PUSH ACC ;for 8031 ADD A,CHEKSUM RLC A JC ADCK3 XRL A,#11011101b ;(#0DDh) ADCK3 MOV CHEKSUM,A CLR C ;if CHK >= 244 then CHK= CHK-244...
View ArticleARM: Is there an SDK for direct programming of ULinkPro
Hi, Most of our tests are fully automated and unattended. Our FW verification team occasionally needs to watch state machine behavior while exercising various embedded functionality. They are not...
View ArticleARM: Using ITM retarget with Keil Software Packs (3 Replies)
I recently found out that in Keil 5 I can select different IO retarget modes. So I went and gave it a try. I go to "Manage Run-Time Enviroment" -> Compiler -> I/O and select STDIN equal...
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