All Questions
Tagged with interrupts adc
24 questions
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How to make a circuit which can give divided voltage to ADC and can send a trigger pulse to INT0 when I press a button?
I connected 4 buttons to the ADC module of AVR-ATMega328p with different resistor values,
To know which button is pressed this ...
- 45
0
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1
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2k
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ADC Multiple Channel without using DMA
below i give my code. here i using 2 ADC Channel and i getting first ADC channel value only. i need to read both ADC channel value.
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2
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1
answer
137
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Triggering ADC conversions with a timer on the MSP430FR5969
I am trying to repeatedly sample one channel from the ADC on my MSP430FR5969 using timer TA0. Unfortunately, the timer doesn't appear to be causing conversions. I expect my issue lies in my ...
- 23
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2
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2k
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STM32 interrupt and input on same pin
Fairly simple question but I couldn't find any instructions on this. I'm using an STM32G070
I'm interfacing with an ADS1231 which uses DOUT / ~DRDY on the same pin, and I'm wondering if there is a way ...
- 90
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1
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75
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Problem or misunderstand of ADATE bit on ATTiny45
I have 2 buttons connected to pulled-down ADC input.
I want to trigger ISR(SIG_ADC) when ADC finishes conversion - this is working.
If I start ADC using ...
- 209
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1
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3k
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What if you enable both DMA and Interrupt for a STM32 ADC
Imagine this scenario:
You are using a timer driven ADC in DMA mode, nothing special. Now, because you are interested in having a Watchdog, you also enable the ADC Global Interrupt in CubeIDE (...
- 61
1
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1
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4k
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STM32: Why can't I use scan mode in interrupt-driven ADC?
I'm using an STM32F103C8 to read 3 ADC channels, and have used CubeMX + HAL to configure the ADC to shuttle the ADC values into a buffer.
I've been able to accomplish this with DMA and polling: I've ...
- 131
0
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1
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118
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Problem with ADC configuration - atmega328p
What's up folks?
I've been developing a project using atmega328p and avr-gcc.
Recently, I've tried to configure the ADC to single sample.
The codes below show my main.c, ADC.c and ADC.h
...
1
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1
answer
970
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ESP32: sampling a 1 kHz square wave (10%-90% duty cycle) with analogRead()
I need to sample the peak voltage of a 1 kHz square wave. The duty cycle varies between 10% and 90%. I am using an ESP32 and hoped to use analogRead() to sample the ...
- 476
1
vote
0
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198
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STM32F042 ADC Interrupt with STMCUBEMX
I need to read 15 channels ADC. However my MCU is specific named STM32F042K6T6. I decided to use an analog MUX to read every channel from just one pin. But, I didn't read accurately the datas by ...
- 11
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73
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Big code in interrupt freezes main function
I'm writing firmware for an ATSAM4S (runs at 120 MHz)and I noticed a strange issue with ADC interrupt handler.
I set up ADC at 20 MHz, 5 enabled channels, and DMA transfer complete interrupt. ...
- 2,074
0
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1
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486
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STM32F411VE ADC interrupt not working
My code works fine without interrupt (I tried polling the ADC value) but when I enabled the interrupt, it didn't work - while debugging in Keil, it never reaches the ...
- 355
4
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2
answers
1k
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Set up an ADC ISR, but every time an ADC Interrupt is called it goes to isr_trap.asm instead
I am trying to do a program with my MSP430FR6989 from Texas Instruments. I
send an Analogue signal to my ADC module in the uC, which converts it to a digital signal. If the value is greater than 0x800 ...
- 589
1
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0
answers
479
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MSP430G2553 Reading from ADC10 Temperature with Button ISR
This is my lab assignment. When I press the button, the red LED toggles on and off. But, I can't seem to read anything from it. Also, there's an empty loop in the code, but I don't know what to insert ...
1
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1
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929
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ADC Interrupt usage
I'm using a dsPIC30F4011 in my project with XC16, and I'm currently programming its ADC. But my question is also general:
Do I have to turn off and then back on the peripheral (ADC in this case) in ...
- 185
1
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2
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6k
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Arduino Atmega328 sleep mode with internal timer interrupt
I am trying to reduce the current consumption of my Atmega328 -Arduino- by using the sleep modes. In my code, I want to wake-up every 10ms, read the value from ADC, ...
- 11
1
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2
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1k
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ATMega328P free-running ADC interrupt not firing
I'm playing with an ATMega328P running off a USBtiny 1.0, and have the following set up:
Potentiometer to ADC0.
PB0 sourcing current for a LED.
My program then mirrors ADC0 to the PWM on PB0, so the ...
- 203
0
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1
answer
58
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How to change the reading from an ADC of 10 bits to the timer 0 registers using a PIC18f4550?
I a reading an anlogue value using the 10 bits ADC from the Channel 0. I have implemented an interruption using timer 0, where I set some value for the registers of timer 0 (TMR0H and TMR0L - 8 bits) ...
- 23
0
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1
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10k
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ADC continuous conversion STM32F103
I'm facing with a problem regarding continuous acquisition of ADC channel in STM32F103.
I use the interrupt at the end of conversion to call a callback function to store the acquired value.
The ...
- 145
1
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1
answer
3k
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stm32 freezes during ADC
I am doing simple ADC test with potentiometer on STM32F103C8, it seems to work fine for 5 seconds or so, but then the whole uC just stops - even while loop stops doing what it is supposed to do(so I ...
- 1,226
1
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1
answer
2k
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Testing the ADC interrupt on dsPIC33EP256MC506
I have a Microchip MCLV-2 development board intended for controlling small rating BLDC and PMSM. I am trying to develop a simple program to test the ADC interrupt. Basically, I want the program to ...
- 167
0
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1
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2k
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AVR Atmega8 USART and ADC and PWM
I have created 2 different PWMs using timer 1 and 2 on ATmega8, that is used to control a linear motor. I'm using a hall effect sensor to detect changes in voltage as the linear motor moves left and ...
- 623
4
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3
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7k
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AVR ADC performance: interrupts vs. manual conversion
I have a device on ATMega16 microcontroller that is supposed to constantly send ADC measurement results over USART. The controller is operating at 16MHz with an external crystal and ADC prescaler is ...
- 811
4
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4
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2k
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Does an external interrupt interrupt ADC or does ADC stall interrupt?
I'm working on an RTC application with a 1Hz clock attached to the external interrupt pin on a PIC16f887. I also have continuous ADC operations happening along with the 1Hz clock.
My question is ...
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