Frustrating I2C Problem: STM32L-Discovery
Posted on November 20, 2012 at 18:54 The original post was too long to process during our migration. Please click on the attachment to read the original post.
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Can I use usart2 DMA for RX and TX at the same time ?
Posted on March 17, 2014 at 23:01Previously I was using usart2 dma TX and had an int and isr that would handle the RX data. Can I have the dma enabled for both tx and rx for usart 2 ? It seems weird them both pointing at the same DR ? I've figured...
input capture pwm input mode precision
Posted on March 17, 2014 at 17:39 Hello, I am writing code to capture an incoming square wave frequency. Here is my initialization code: TIM_ICInitTypeDef TIM_ICInitStructure; GPIO_InitTypeDef GPIO_InitStructure; NVIC_InitTypeDef NVIC...
STM32F10X - Stack gets corrupted by using big variables/arrays/structs
Posted on March 14, 2014 at 16:021. Everything normal2. Already strange behaviour. Stack size doesn't increase although test3 is one Byte larger 3. Same here, stack doesnt grow4. Stack is corrupted (with test 3 being 232 Bytes large)5. Stack is cor...
Error licensing COSMIC with STVD on virtual machine
Posted on March 17, 2014 at 12:19Hi, I get this error on STVD (with COSMIC compiler - 32KB) when I try to compile my project. The IDE is running on Windows XP over Windows Virtual PC. &sharperror cpstm8 C:\Programmi\COSMIC\CXSTM8_32K\Hstm8\mods0.h:1...
SPI continuous transmfer problems
Posted on March 17, 2014 at 09:20dear sir, I use the STM32F4 uP to control peripheral IC by SPI protocol. And I composed the source code according to the the reference manual (Doc ID 018909 Rev 5). However, the data is invalid after SPI_I2S_FLAG_RXN...
Questions re USB Virtual Comm Port (VCP) capabilities
Posted on March 14, 2014 at 01:20Hello,I am trying to use the Virtual Comm Port (VCP) capability in the STM32 USB Host Device Library V2.1.0 on a STM32F207. But I am relatively new to implementing a USB device and the STM32 USB libraries, so I would...
STM32L151CB Hardware RTC issue
Posted on March 17, 2014 at 05:53Hi cliveI am using STM32L Harware RTC for continuous date and time display.I found that RTC seconds gets decreased after few hours and display wrong time.RTC Clock: LSE.MCU Clock : 4MHz.Have you observed this issue?...
Initialize TIM2 Channel 2 for PWM Output in Assembly
Posted on March 15, 2014 at 04:00Hello,I have a STM32F100RB discovery board and I am trying to setup up TIM2 Channel 2 to output a PWM signal using assembly language, but I am having trouble sorting through the reference manual. The code I have so f...
stm32f4discovery connection with sd/mmc card
Posted on March 16, 2014 at 22:17HelloI want to connect a SDcard to stm32f4discovery .A typical sdcard has CMD , CLK , DAT[0:3] , GND & VDD pins .how should this pins be assigned to SDIO related pins( D0...D6 , cmd & ck ) in stm32f407vgt6?Can sdcard...
