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Accelerate your design success with complimentary MQX RTOS, TCP/IP and USB stacks.

Welcome to the open community of MQX developers and users with the common interest of transforming applications into practically anything imaginable.

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The links below provide useful design resources for MQX Software Solutions product developers.

Products	Latest Releases and Patches	Announcements & Information	Training
MQX Classic	MQX v4.2.0.2 Patch	The specified item was not found.	MQX RTOS Training Space
MQX v5	The specified item was not found.	General MQX FAQs	MQX Essentials - Training Videos
	CyaSSL for MQX RTOS	MQX Roadmap

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vines in MQX Software Solutions1 week ago (Show more Show less)

UART-RS485 introduce unnecessary delays

Hi, I hope somebody can help me with my current issue. First, I will give a brief introduction to what I am using. MCU: K60 RTOS: MQX 4.0 Compiler: cw10 ( I cannot convert to KDS or Expresso with gcc as I time won't allow me to port over) Serial Used: UART4 with a medium priority interrupt System: Master and Multiple Slave (Polling… (Show more Show less)

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vines (to Daniel Chen) 2 days ago (Show more Show less)

Hi Daniel, Thanks for the reply. Actually, I am running with only 1 task for the sake of testing. I did suspect that it might have contributed to the delay. Unfortunately, it is still the same. In addition, I set the macro BSP_ALARM_FREQUENCY to 1000. Thanks.

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Khada Jhin in MQX Software Solutions3 days ago (Show more Show less)

I believe I have accidentally erased the firmware from my OM14510-SJA1105TJP: Automotive Ethernet Switch Application Board with Flash Magic.

Is there any way I can download the firmware? I believe this is the reason why I am having issues with running example_com files.

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Rudy Vigneault in MQX Software Solutions2 weeks ago (Show more Show less)

How to get task ID from MQX watchdog failure

Hi, We are using the watchdog of MQX 4.2 to detect crashes or halted tasks but I would like to know what information is available when the watchdog error function is called. We are creating the watchdog using if(_watchdog_create_component(BSP_TIMER_INTERRUPT_VECTOR, handle_watchdog_expiry) != MQX_OK) { printf("\nError creating watchdog… (Show more Show less)

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Daniel Chen

(to Rudy Vigneault) 3 days ago (Show more Show less)

You are welcome and thank you for your update. Regards Daniel

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KALAIYARASAN SELVARAJ in MQX Software Solutions1 week ago (Show more Show less)

USB >8Gb not working properly

Hi , I am using MQX for my project, Where i am not able to use USB device 8GB or more than that. If i use flash drive more than 8 GB. I could see write as success but it is not actually written into it. I tried to do flush but it is not working. I am missing anything in the configurations. Please update me if any, Thanks, Kalaiyarasan.

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Daniel Chen

(to KALAIYARASAN SELVARAJ) 5 days ago (Show more Show less)

Hi KALAIYARASAN: Could you let me know which board you are using , and echi or khci? I would suggest you try to test this case with the latest MQX 4.2, to see whether this issue still exist. Regards Daniel

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Chris Solomon in MQX Software Solutions5 years ago (Show more Show less)

MQX TCP bug - Lockup on more than one simultaneous open.

Hi, I have been working on this problem for about a week, and thought I would share my progress. (Using MQX 4.0.1, but have checked and MQX 4.0.2.2 does not seem to have a fix.) Problem: I am working on a product with a 3G modem and a K70 based processor. It connects to the internet using PPP over USBOTG, and runs FTP and telnet servers,… (Show more Show less)

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Daniel Chen

(to Eukeni Urkiaga) 1 week ago (Show more Show less)

Thank you very much for your feedback. I think the mqx 4.2.0.2 patch should include mqx 4.2.0.1 patch, there maybe a mistake here. You can manually merge the bug fix to your project. I am sorry that there will be no new release for MQX 4.2 any more. MQX v5 is a continuation of MQX 4.2 with commercial license. Please check below link for more…

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Eukeni Urkiaga in MQX Software Solutions1 week ago (Show more Show less)

Changes undone in MQX RTOS 4.2.0.2 patch

Hi, We are working with MQX 4.2.0.2 and we have detected the same problems that Chris Solomon detected in MQX TCP bug - Lockup on more than one simultaneous open. I have been investigating a little more and I have detected that the problem was resolved in MQX RTOS 4.2.0.1 patch (MQX-5591). However all the changes done in tcp.c in 4.2.0.1 patch ,… (Show more Show less)

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Daniel Chen

(to Eukeni Urkiaga) 1 week ago (Show more Show less)

Hi Eukeni Urkiaga Thank you very much for your feedback. I think the mqx 4.2.0.2 patch should include mqx 4.2.0.1 patch, there maybe a mistake here. You can manually merge the bug fix to your project. I am sorry that there will be no new release for MQX 4.2 any more. MQX v5 is a continuation of MQX 4.2 with commercial license. Please check…

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Francesco North in MQX Software Solutions9 years ago (Show more Show less)

Unhandled Interrupt vector 0x9f (159)

Hi, I'm using an MCF52259 and getting the following error being printed out by MQX. *** UNHANDLED INTERRUPT *** Vector #: 636 0x27c Offset : 159 0x9f Task Id: 0x10005 Td_ptr 0x1000bc80 Stack Frame: 0x100006f8 Interrupt_nesting level: 2 PC: 0x000006ea SR: 0x2204 Then a crash. Looking at the MCF52259 (16-15) manual the in use… (Show more Show less)

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增王 (to Francesco North) 2 weeks ago (Show more Show less)

I found the same problem. And I had used a lot of time to fix the problem. After scanned this acticle. I modified the MQX source to change the same level interrupt to different one. Then it is ok, no unhandled interrupt occurs.

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Ali2006 in MQX Software Solutions4 weeks ago (Show more Show less)

SPI Master Communication - MK10 and MQX 4.0

Hello All, I'm currently using the MK10 system with MQX4.0 and I'm having trouble with my SPI communication. I have my SPI setup with 4 chip select channels and each includes it's own SPI configuration. I have an application with many tasks, two of which utilize a single SPI channel. I have semaphores preventing them from using the SPI at… (Show more Show less)

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Daniel Chen

(to Ali2006) 2 weeks ago (Show more Show less)

Hi Ali2006 Since your system performs these reads every 5ms, could you configure the reads every to 20ms or a large value to check whether this issue still exists? What is your tasks priority? I would suggest you increase the priority of task A to check this issue. From you description, it seems only peripherals with Task A have this issue. …

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Tom Beza in MQX Software Solutions4 weeks ago (Show more Show less)

MK70 SDK for Kinetis Design Studio

Hi, I'm using mk70 MCU, is there any SDK for Kinetis Design Studio or MCUXpresso?

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Tom Beza (to Tom Beza) 2 weeks ago (Show more Show less)

Thank you all for your helpful answers, I'll use your advises.

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Jon Alvik in MQX Software Solutions2 years ago (Show more Show less)

Nand Flash ECC Failed

This question is a continuation of MQX MFS Nandflash ECC Failed After getting a working solution and testing it several times, I now have the same error again. The solution I found is not working anymore, and I can only guess at what sequence of events led to a working solution before. Symptoms: - Using MFS nandflash example (with ffs… (Show more Show less)

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naftalir (to Jon Alvik) 2 weeks ago (Show more Show less)

Can you please share example for your solution?

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Items tagged with mqx

Changes undone in MQX RTOS 4.2.0.2 patch
USB >8Gb not working properly
MQX TCP bug - Lockup on more than one simultaneous open.
HTTP Server Max Sessions
ESDHC Timeout Error
MFS Invalid Sector Errors
IP BIND ISSUE
Support for FlexNVM on FTFE driver
TCP / IP Socket Client Issue (RTCS bug?)
How to setup MQX to respond to 2 GPIO ISRs on the same port

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I believe I have accidentally erased the firmware from my OM14510-SJA1105TJP: Automotive Ethernet Switch Application Board with Flash Magic.
USB >8Gb not working properly
UART-RS485 introduce unnecessary delays
Issues removing unused PHY from twrvf65gs10a5 based board
SPI Master Communication - MK10 and MQX 4.0

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