• Input capture problem
    Hi everyone! I'm trying to measure a PWM frequency signal using the input capture channel 1 of TIM3, but it won't work. i'm using NUCLEO F446RE board, here is my code: #include "stm32f4xx.h" //...
  • ARM Processor board and Programming
    I am trying to develop an ARM development board using ATSAM3U4C with a 96 MHz clock, a few LEDs and a button for external interrupt. Shown below is a little circuit that I have put in place. Using Atmel...
  • Bare Metal Input/Output - Documentation?
    Does anyone know of an Idiot's Guide to this topic? In particular, how does a processor with no special I/O instructions issue a request, e.g. to a serial output device to output "Hello, World"? And how...
  • How to set a PIN for input and make it intially as low
    I am using LPC2148 for my development purpose. I am trying to set PINs 15 and 16 as input and initially make it low: #include <lpc214x.h> #define LED1    (1 << 10) #define LED2    (1 << 11) #define BUTTON1...
  • Need help to decide on which ARM board to go for?
    How do I decide which ARM board to go for if I am aiming to use it as a micro-controller to run sensors, actuators, motors, and solar panels? And I wish to power up the board via Li-ion battery pack....