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Posted on July 15, 2014 at 17:29Hey guysI'm working on a projet and i'm using STM32f4 discovery board.I wrote program to send data by USB (from MCU to PC by Bulk transfert) in full speed mode.Usually the throughput should be 12 Mbits/s but mine is o...
Posted on March 06, 2014 at 22:33Hullo guys , ....... I got SDIO and DMA working fine , but now i want to use the DMA so store the data automatically into external SRAM for further processing , now the problem is that the documentation tells very fe...
Posted on July 16, 2014 at 10:33 I am using a F401 to read 1024 Samples with 40ksps and it works fine so I hope that the code is ok. DMA_INIT.DMA_Channel = DMA_Channel_0; DMA_INIT.DMA_PeripheralBaseAddr = (uint32_t)ADC1_RDR; DMA_INIT.DMA_...
Posted on January 08, 2014 at 10:46Hi,I was working with my stm32f3discovery and using the On-board ST-LINK/V2 for debug/ flash programming.I was working fine: flash download, debug and so on.After that I've disconnected the board. When I've reconne...
Posted on July 16, 2014 at 02:29 Hi! I have a small rtos and I have to write a string every 5 ms to a sdcard. This (pseudo)Code works fine: void SDTask(...){ // some init for( ;; ){ SDopen(&File); SDWriteString(&File,SDstr...
Posted on July 14, 2014 at 15:38Hi,I am trying to do the FFT over an input real data (audio) on STM32F4 DISCO EVK & external CODEC. I have used the CMSIS function arm_rfft_fast_f32() http://www.keil.com/pack/doc/cmsis/DSP/html/group___fast.html I ...
Posted on July 12, 2014 at 11:17USART communication with stm32f4 discovery application did. At the beginning of the data sent to the PC comes an unwanted character. Sent from the computer to one of the characters I can not even. I changed it to HSE ...
Posted on July 15, 2014 at 14:51Hi I am using STM32F429 with IAR work environment and i am trying to sync two clocks first clock: MCO2 is configured to output 29.5MHZ by using PLLI2SCLK second clock: LCD-TFT configured to output 14.75MHZ (half of M...
Posted on July 15, 2014 at 22:16Hi, With the Keil qVision v5 Logic Analyzer I'm tracing (ST-Link) an single ADC value which is updated every 10 microsecond. Directly after starting the trace I get ''Trace: SW Buffer Overrun''. Is this a ST-Link lim...
Posted on July 15, 2014 at 17:21Hi,I am currently implementing a USART rx driver on an STM32F303xxx using a receive DMA buffer. The motivation to use DMA is to allow reception of bursty high speed (8Mbps) data. [note that using HW flow control doesn...
