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Posted on March 14, 2016 at 16:07Hi. Ref. manual says that PWM output is '0' when CCR register is 0. I noticed a difference when I look output signal on a scope while CCR was set to 0. I have ARR set to 16383, timer frequency is 72 MHz. Thus, the pe...
Posted on March 14, 2016 at 14:57Hello,I am working with ST-LINK/V2 and would like to use 2 probes simulteanously.The 2 probes are recognized with ST-LINK but I can't connect them simultaneously.I have tried to lauch 2 ST-LINk or to connect them wit...
Posted on March 10, 2016 at 21:04Hello,I'm experiencing an issue with a STM32F101 using an 32.768kHz LSE.The LSE being used is the 7pf variant shown in the link below with 9pf caps as CL1 & CL2http://www.ecsxtal.com/store/pdf/ecx-71.pdfThe problem i...
Posted on March 14, 2016 at 11:19Hello there, I have a question regarding output compare mode with 32 bit timers in STM32F4 mcu. I have only one 32 bit timer that is free to use. I need to generate interrupts for 2 events. Those events should occur...
Posted on March 14, 2016 at 10:54Hi everyone, I have some cpu-load issue on my design, so I am trying to redesign an high frequency Rx spi transfer. (24bit) I would like to setup a timer that at a certain frequency triggers the Rx SPI transfer. Righ...
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...
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...
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...
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...
Posted on March 11, 2016 at 18:52 I have found a strange behavior of STM32L Low consumption 1.0 uA (as stated in the datasheet) is reached in the first sleeping with the STOP mode after reset but in sleepings that follow the first and next wake-...
