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Questions - freertos

Will semaphore corrupt data transmission of peripherals like UART in a microcontroller?

Semaphore disables interrupts and so will this cause other operations like receiving data on SPI to get corrupt?
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Joseph Stephen

embedded

microcontroller

semaphore

freertos

Votes: 0

Answers: 2

Latest Answer

There's no standard way of implementing a semaphore. To disable all interrupts on the MCU is one way to do it, but it's a very poor amateur way of doing so. Because in more complex applications with m...
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Lundin

Volatile variable not updated despite unoptimized assembly

I'm working on a dual-core Cortex-R52 ARM chip, with an instance of FreeRTOS running in each core (AMP), and using ICCARM (IAR) as my compiler. I need to ensure that CPU1 initialize some tasks, in ord...
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BowTieping

c

arm

freertos

iar

Votes: 0

Answers: 0

Hard Fault when optimization level 1 is enabled (FreeRTOS)

I have the following function used to test the file system (yaffs2). It is called by a FreeRTOS task with a stack size of 65535. In debug mode, everything appears to work fine, but when I enable -O1, ...
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EserRose

c

embedded

freertos

Votes: 0

Answers: 0

Event-based task management using FreeRTOS

I'm trying to pick up C, using an esp32. While looking at exactly how FreeRTOS works, I found the following page regarding how to use the tasks, and best practices etc. https://www.freertos.org/implem...
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Cinque

c

freertos

Votes: 0

Answers: 1

Latest Answer

I use FRTOS and event driven development. The typical flow here would be: for(;;) { BaseType_t result; result = xQueueReceive(LCD_Event_Queue, &someLCDEvent, QUEUE_TIMEOUT); if (result...
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abelenky

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