Posted on March 22, 2013 at 21:24Hi, I am having some troubles getting EXTI0 working properly with GPIOA.P0. At present, the interrupt works, just in the wrong way. I have a push button hooked up to GPIOA.P0 that pulls it to ground. It is configu...
Posted on March 21, 2013 at 19:44I have an application where I have a digital mic/codec (maxim codec chip) combination transmitting PCM 16-bit samples over I2S to an STM32F217. I am trying to use DMA to capture this audio stream, however I only wish...
Posted on June 26, 2012 at 18:36Hi to all,I started to develop a STM32F4-Discovery Soft Synth. A video showing it's first beta release is here: http://www.youtube.com/watch?v=4JkhzH57Je4In some post I view a interest to audio application using STM3...
Posted on March 22, 2013 at 00:42I am holding an STM32F205 in reset (NRST pin low). I am measuring the current into VDD1-4 plus AVDD at 1.7mA. I am using 3.3V. 0.1mA I can explain through the pull-up resistor on the NRST pin per datasheet. 0.3mA I [...
Posted on March 20, 2013 at 15:29Hello, I´m using STM32F303 and I´m trying to communicate via SPI (simplex SPI1-SPI2 using interrupts). It couldn´t be easier but it doesn´t work and I can´t find mistake. I connect PB3 (SPI1_SCK) with PB13(SPI2_...
Posted on March 21, 2013 at 23:29hi all,please i need help. I have to generate 2 signals PWM like this:I think that we should insert a dead time. How to do it plz?
Posted on March 21, 2013 at 10:46Hi, 64 byte transfers from my STM32F4 cdc driver to the host side fails. 63 bytes work, as well as 65 bytes. A quick forum search indicates that this is a bug in the cdc class driver firmware. A 64 byte transfer shou...
Posted on March 21, 2013 at 04:08I'm having difficulty getting deterministic behavior when disabling a DMA transfer in progress. I'm using DMA to feed the USART 2 transmitter from a buffer. When I need to queue up more data for the transmitter, I'...
Posted on January 24, 2013 at 17:54Hi allI am using STM32 and trying to make the periodic wake up of the CPU from low power sleep mode , by interrupt from TIMER 9 , and I see the following strange behavior: I succeeded to wake up the CPU fro...
Posted on March 21, 2013 at 20:49Can anybody help explaint why when as the Master on the i2c, when i send out the slave address for a read request, i get 2 consecutive 9 cycle clock bursts before I try to do the Read. Basically i am loosing the firs...
