Posted on May 27, 2013 at 05:31Application note AN3070 describes a procedure for releasing RS485 bus when using DMA to transfer USART data. The procedure uses two interrupts: * DMA transfer complete (DMA_TC) interrupt * USART transfer complete ...
Posted on May 22, 2013 at 17:23Hello,I'm working on an interface based on STM32F407 with 48 buttons. I use 74HC165 shift registers parrallel in/serial out to multiplex my buttons states.I need to cascading 6 registers to connect the 48 buttons.This ...
Posted on May 31, 2013 at 08:59Hi, i bought 2 chips STM32F103RET6 , i put them into boards, one chip is working normally , so it's possible to flash it via USART1, but second one is not reacting on USART1 for new flash, and i think that it's not ...
Posted on May 31, 2013 at 14:53Hi all! I'm a newbie and I have problems with my STM32L-Discovery. I'm trying to do the simplest possible program: make the blue LED in PB6 output blink. This is the code I've made: #include <stdio.h> ...
Posted on May 31, 2013 at 10:03Hello, I currently have the problem of the camera (OV7670) via Ethernet (UDP) to stream. I currently use the demo software and a simple UDP connection (server) to build, now I want to send the camera data in JPEG form...
Posted on May 27, 2013 at 16:50 I test the microphone[MP45DT02] of stm32f4 discorvery board. I use 1.024Mhz Clock input microphone with i2s signal. Pmd fiter of library is applied and get pcm data from pdm data. Is it corret pcm data that no sou...
Posted on May 30, 2013 at 16:21Hi,Stm32l1 consumes much current than I expected. In standby mode, I measure 6uA consumption for my board but when I put it in stop mode it consumes 480uA. It should be around 10uA.The configuration is; USART_ITConfig(...
Posted on May 31, 2013 at 05:46Does LibPDMFilter_IAR.a in the STMF4 DISCORVERY is used for all STM32 family? for example, Is LibPDMFilter_IAR.a used for STM32F1XX not STM32F4XX????
Posted on May 30, 2013 at 15:28 Can I2S3 be configured as Rx slave, with an external clock ? RM0090 says nothing on the contrary, but looking at the stm32f4xx_rcc.h include file I see this definition, which relates to I2S2, but there is not ...
Posted on May 30, 2013 at 02:28I've got several Discovery boards (2 F4s, and some others). I've got the last version of the Atollic Truestudio Lite IDE before they added a code size limit, v2.3 I think, installed on 3 PCs. I hadn't used them for man...
