Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


Loading

STM32F10x - FreeRTOS - ADC - ISR

Posted by Valerio GiampĂ  on May 24, 2011
Dear Collegue,
I have to use an ADC integrated into the STM32F10x microcontroller.
The firmware application is based of STM32 Peripheral Library and FreeRTOS Porting for STM32 Arm Cortex M3 RTOS.
I have to configure the ADC to operate in single channel continuous conversion mode.
i would select the ouuput data of the ADC with the ADC Interrupt service routine.
I don't know How I can configure the ADC Interrupt and How I can generate an OS Signal in the ADC ISR to start the task.
Can yu help me?
In addition I would like to know if I can use in alternative at the ADC ISR, a DMA to transfer the ADC Output data into the memory without CPU load and How I can do it.

RE: STM32F10x - FreeRTOS - ADC - ISR

Posted by MEdwards on May 24, 2011
If you have questions about setting up STM32 ADC conversions, then read the STM32 manual, look at the examples ST give you, and then if you are stuck ask on an STM32 forum. This is a FreeRTOS forum.

Hidden in your question is a sub question about how to generate an OS signal to start a task. Every FreeRTOS port has its own demo project, and each demo project includes an interrupt definition that demonstrates what you want to do. Have a look at that first, read the FreeRTOS tutorial books, and inspect the queue and semaphore API function descriptions on the web site (look at the ones that end in the text FromISR). When you have done all that, if you cannot get it to work, then ask again with information on what you have tried and what the problem is.

Until that time, I don't think anybody here is going to put any time into answering such an open question when all the information you need is already provided.


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]


Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.

Meet Richard Barry and learn about running FreeRTOS on RISC-V at FOSDEM 2019

Version 10.1.1 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


Careers

FreeRTOS and other embedded software careers at AWS.



FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Renesas

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner