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Forum Posts

stm32f407 and 3g/gprs module ?

Posted on March 14, 2016 at 11:12Dear All,I am using an stm32F4discovery ( stm324f07vgt)  to capture images coming from a camera OV5642, i would like to send pictures ( 5MP) with 3G module, Could you please suggest me an exemple of module that suppo...

STM32F37x DMA SDADC + DAC same DMA Channel

Posted on March 11, 2016 at 17:03Dear Community, I am trying to use two peripherals (STM23F373) SDADC1 and DAC1_1 having the same DMA access channel: DMA2_Channel3 (STM32F37x reference page 164). Due to a synch problem I want to use the DMA in norma...

jogerh by Associate II
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Problem reading SD card

Posted on March 11, 2016 at 20:08Hi to all, I have a big issue with SD cards. I initialize correctly my sd card, but when I try to read a block, I can read it only the first time. This is my routine: ===================== uint32_t MYSD::ReadSector(u...

STM32F4 synchronise timer + generate variable frequency

Posted on March 07, 2016 at 12:56Hi, I have a litte problem. I need to generate a variable frequency (not duty cycle) for a piezo buzzer. Unfortunately the PCB layout is givn as a H-bridge (see image). ''Piezo'' is connected to TIM4_CH1 and ''Piezo2...

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kruszi by Associate II
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F1 can hal_can_state always 0x22

Posted on March 11, 2016 at 21:36  The original post was too long to process during our migration. Please click on the attachment to read the original post.

Anomalous high ADC rate at stm32f103cb

Posted on March 11, 2016 at 21:02 Hello! I need an advice. My stm32f103cb chip has ADC with 0.39 us per point conversion rate on one channel. But datasheet says its max rate is 1 Msps (1us). I checked sampling rate with external oscillograph (1 ...

STM32F051C8 UART2 or 1 don't trigged

Posted on March 13, 2016 at 01:59 Hello i'm trying to configure an uart 1 or 2 interrupt in sw4STM32 and cube mx, but never responses the interrupt i can recive data from uart and send data in uart 1 and 2 in pooling mode mi code. Main ...

enagma by Associate
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send raw eth packets

Posted on March 12, 2016 at 07:47hi i am able to send/rec udp/tcp-ip packets on my stm32F4 via LWIP library and aid of cubeMX.i can see and track the transmitted packets from the STM32 board to pc (via wireshark) now i need to send some raw Ethernet...