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Questions tagged [micrium]

Micrium is a priority-based pre-emptive real-time multitasking operating system kernel for microprocessors.

22 questions
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Micrium uC-OS/II on Dynamic C/Rabbit - might have task starvation

I'm trying to get 2 tasks to run in my Dynamic C under Micrium uC-OS/II. One task is the http handler, the other reads from the serial port. The serial port task seems to inhibit the http task from running. Any ideas why this is? I thought…
fred basset
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Find out if an object on a specific address is a pointer

I Have a PC Program that is communicating over a TCP/IP Connection to an Embedded board (Infineon XE169 (C166 Family)). This PC Program request what data is stored on a certain address. The PC Program is uC/Probe, and I cannot change how this…
Roel Balink
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FATFS on ST32 with device configured as USB drive

I'm currently developing an application for an ST32 (STM32F103xC) using Micrium OS-II. So far it's all gone smoothly, but I've hit a block now and can't proceed. The board is configured to act as a USB storage device using the SD card so that the…
Julian Gold
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read/write files from USB memory stick in uC-OS/II

I have a board with ARM processor and micrium RTOS on it. I need to read/write files from the USB memory stick. For example standard function, which renames file is next - int FS_Rename (const char * sExistingName, const char *…
drfred
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micrium file system get amount of space left

I am wondering if there are any build in functions for the uC/FS to get the amount of memory left on my SD Card with FAT32 format. Many thanks. PS. I have looked around but don't seem to be able to find it on the manual.
Low Lifer
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typecast to a not typedefined struct

Basicly I am getting data from another thread in the RTOS. This data is a pin on the board. All the IO ports are in structures / unions in an iodefine.h file. See this for example on how Micrium made it: struct st_portd { union { unsigned char…
Davey
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1 answer

Allocation and Free in Micriμm μC/OS-III RTOS

We are using the μC/OS-III RTOS of Micrium with a RX62N of Renesas. We built a system where we have to dynamicly alloc and free data. We found out the functions malloc() and free() are not working well with the RTOS. However the RTOS has a custom…
Hendrik
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Malloc in uC/OS-III RTOS of Micrium

We are using the uC/OS-III RTOS of Micrium. We are trying to the return value of malloc on the RTOS. When we do a malloc of 99999 (too much for the RAM) before the RTOS is started, we get a null pointer back, which is what we expect. When we do…
Davey
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What is source of IID 0x7ffffff error in CCES debugger, and how to fix it properly?

I have problems with MDMA transfer on ADSP-SC584. I work in CCES IDE 2.8.3 I take MDMA CrossCore example project ,and do changes towards ARM direction of data flow. So initialisation is the same(MCAPI addresses and SID of interrupt). I have complex…
Ilya
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How to bind to a broadcast address in Micrium

I'm trying to find a way to bind an IPv4 UDP socket to a broadcast address in Micrium (µC/OS-Ⅲ). Attempt to bind a socket to the actual broadcast address just returns NET_SOCK_ERR_INVALID_ADDR. The broadcast is not explicitly mentioned on the list…
Pawel Veselov
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Micrium OS -III Timer callback function not getting called

I am using keil compiler for arm(stm32F4). In my code I have created a timer to call a function which calls a function from a *.lib file. The function is getting called if I am using linker optimization level-0 (O-0) and the application works fine.…
kernel
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Stack overflow after call to OSStartHighRdy (uC/OS-III)

I'm in the process of getting uC/OS-III working on an NXP MIMXRT1062 using the MCUXpresso ide with gcc compiler. When the OS starts multitasking it calls the OSStartHighRdy function: .thumb_func OSStartHighRdy: CPSID I …
Lazaro
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Finishing uC/OS-II

For future developers' sake and to seek a better code organization and structure, I need to finish micrium execution and go back to a bare-metal state. So, how can I pass the OSStart() point? Bellow, there's some minimal/pseudo code. while…
Jonny Quest
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Silicon Labs Micrium Os Network module build failed

I am trying to initialize the Network module of the Micrium Os and I get a build error when calling the "NetIF_Ether_Add" function. The actual error says that there is an undefined reference to "NetIf_Ether_Init" in the "net_if.c" file from the SDK.…
Csaba Birtalan
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Micrium File system partition issue

I have partitioned the NOR Flash into two regions, and trying to mount these two regions into separate volumes. But im getting the error FS_FAT_VolOpen(): Invalid boot sec sig: 0xFFFF != 0xAA55. I have followed the steps Opened the…
APT
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