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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.

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mrandreas in MQX Software Solutions2 days ago (Show more Show less)

MQX Task scheduling with timer task and MQX Watchdog.

Regarding the Timer component and it's preemption with other Task's. I have several tasks "ready" with almost the same priority and with sliced timer. I also have a timer component (_timer_create_component) modified to also be sliced timer. For all the task's I have a MQX SW Watchdog. All the task's behave as expected with the "time… (Show more Show less)

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Christian Fischer in MQX Software Solutions1 month ago (Show more Show less)

RTCS Watchdog Interference

We encountered a problem on a K60F120M using MQX 4.2.0.2 that seems mainly related to the RTCS module. Namely when the RTCS module is activated and with a watchdog set to 1 second the system restarts/resets about once a day. Used modules: bsp, psp, rtcs and shell. Configuration for RTCS: _RTCSTASK_priority = 7; _RTCSTASK_stacksize… (Show more Show less)

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Daniel Chen

(to Christian Fischer) 2 days ago (Show more Show less)

Thank your for your sharing. Regards Daniel

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jschepler in MQX Software Solutions2 weeks ago (Show more Show less)

ESDHC Timeout Error

I am using MQX for KSDK 1.3.0 on a K64F processor. I am using the MFS file system and writing to an SD card. I noticed a post mentioning there is a 32-bit / 64-bit issue and designed a simple test to evaluate the changes. (See here) However, during this testing I noticed that writing to the SD card will fail because of a timeout. I traced this… (Show more Show less)

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jschepler (to jschepler) 6 days ago (Show more Show less)

Our hardware uses an SDCard that is inserted into the board at production time and will never be taken out. (It is inside an enclosure and not visible to the customer) Each board uses the same manufacturer and part number for the SD card. Knowing this, I looked up the data sheet for the part number and did not see any information related to…

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jschepler in MQX Software Solutions2 weeks ago (Show more Show less)

MFS Invalid Sector Errors

I am using KSDK 1.3.0 with MQX and MFS. We are using a 16 GB SD Card. I am evaluating the reliability of the MFS file writes by using 1 task that writes to files. I was running into issues with timeouts originally (see here). I have a tick time of 1 ms for my system so I set the timeouts to the following until I hear back from what they should… (Show more Show less)

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jschepler (to jschepler) 7 days ago (Show more Show less)

The root cause of this issue is an overflow of a unsigned 32-bit number when trying to access the sector. It is confusing to follow through the functions because sometimes the LOCATION is referred to by a SECTOR, and sometimes it is referred to by BYTE. In my SD Card, a sector is 512 bytes. In the function mfs_rw.c a sector location is…

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arya vijayan in MQX Software Solutions1 month ago (Show more Show less)

DNS issue

Hi, We have observed that the DNS server is failing to resolve the IP address. This is mostly seen when we switch the router OFF/ON. But that time we can ping the DNS IP successfully. Note that other devices are working in the same network without issues. Please provide a solution. Another question is should we start DNS client when we… (Show more Show less)

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arya vijayan (to Daniel Chen) 1 week ago (Show more Show less)

Hi Daniel, Thank you so much!! Regards, Arya

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Abhay Gojiya in MQX Software Solutions2 weeks ago (Show more Show less)

How to Use Custom Charactratics for QN9080 DK?

i want to use Custom Charactratics for my appliation. how i can start on QN9080 DK ? Is there any example available in SDK? can anyone help me to clear a vision?

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Daniel Chen

(to Abhay Gojiya) 1 week ago (Show more Show less)

Hi Abhay: In order to get timely support, I would suggest you post wireless related questions in wireless connectivity space. Wireless Connectivity Regards Daniel

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Adrian Rockall in MQX Software Solutions11 months ago (Show more Show less)

_io_part_mgr_write fails on large sector

I am using KSDK 1.3.0 with MQX on the MK66 processor. Problem 1: I have found a problem where after a period of time of writing data to an SD card it would become unavailable. It would mount but any read / write / list would fail. I have tracked this down to a problem with the _io_part_mgr_write function. It calls lseek, which returns the… (Show more Show less)

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Adrian Rockall (to jschepler) 2 weeks ago (Show more Show less)

Hi, I guess you have an additional problem with that type definition: The root cause of the this issue is the call of lseek. lseek has a return value of off_t, which on my K64F system is defined as a long in the _types.h file in GNU tools 4.8 2014q3. Also, the lseek argument "offset" is also an off_t type, so it is 32-bit as well. I'm…

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KALAIYARASAN SELVARAJ in MQX Software Solutions3 months ago (Show more Show less)

Can I get Heap Info in MQX?

Hi, I am using MQX for my project, Where i want to check the heap usage priority. I know that we have function "_mem_get_highwater" which will give highest allocated memory but I need the percentage of memory used in the heap. I need to start address and size of the heap(default memory pool). Please update me if any, Thanks,… (Show more Show less)

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KALAIYARASAN SELVARAJ (to Daniel Chen) 3 weeks ago (Show more Show less)

Hi Daniel, Thanks for the answer,

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liu wei in MQX Software Solutions1 month ago (Show more Show less)

undefined reference to `SystemInit'

the error comes from Example Project of "hello_world_mpc5748g".When I build this project,it gave me a error. I use window10 system. error1:C:/NXP/S32DS_Power_v2017.R1/S32DS/S32_SDK_MPC574xx_EAR_0.8.1/platform/devices/MPC5748G/startup/gcc/startup_MPC5748G.S:246: undefined reference to `SystemInit'… (Show more Show less)

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Daniel Chen

(to liu wei) 3 weeks ago (Show more Show less)

Hi Wei: Is this a MQX based project? If yes, you need to build some libraries first, then build clean and build your applications Regards Daniel

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