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Forum Posts

How to calculate date,month and year ?

Posted on January 08, 2014 at 08:35Guys, How to calculate date,month and year ? from RTC_GetCounter function, I saw : uint32_t RTC_GetCounter(void) {   uint16_t tmp = 0;   tmp = RTC->CNTL;   return (((uint32_t)RTC->CNTH << 16 ) | tmp) ; } I've done ...

STM32L1xx performance question

Posted on January 04, 2014 at 13:57 Dear Sir/Madam, In the past I have been using 8-bit AVR (Atmega328p) for my application. The application uses the following peripherals: - I2C peripheral and - USART peripheral The ...

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UART4 with DMA Rx Interrupt

Posted on January 09, 2014 at 09:30Hi ,I'm trying to use UART4 with DMA Rx Interrupt , and using stm32f103zg microcontroller. but i couldn't find any example project for this in here.Could anyone help me about this matter ? #dma #stm32

Extra interrupts generated when using DMA and SPI?

Posted on January 07, 2014 at 02:03I have a STM32 discovery board configured in slave mode receiving commands over SPI. When it receives a specific command byte, it activates DMA and sends back a set number of bytes back. I have a print statement at...

Buffer sizes for SPI and DMA

Posted on January 06, 2014 at 18:27 Quick Question: I'm using DMA to transfer some data over SPI, and the first time round, I'm sending data from a buffer of size 3 bytes. I then redefine the DMA to try and send a buffer of size 4 bytes, but it ...

How to play wav on STM32F4 Discovery?

Posted on January 09, 2014 at 01:20Guys, How to play wav on STM32F4 Discovery? If I want to play from USB Key, I enable : #define MEDIA_USB_KEY and how to connect USB flash drive to this board ? with adaptor ? the socket is too small for USB flash d...