Posted on June 04, 2015 at 01:18 Hi, I'm continue fighting with full-duplex configuration of STM32F4 I have an audio codec with MIC input and speaker output. I connect DOUT pin from the CODEC to PC3 (I2S_Dat) line. So it will be my Rx pin. Th...
Posted on June 04, 2015 at 09:39I'm using a stm32f303 which has a max clock speed of 72MHz. It would be very convenient for me to set it to 73.728MHz. It works on my board, but what effect does a few percent overclocking have on the MCU? How is rel...
Posted on June 04, 2015 at 20:28I can't find the internal oscillator accuracy anywhere in the datasheet or the reference manual. If I have the sysclk set at 48MHz from the internal osc. what are the limits of what that sysclk may actually be? #da...
Posted on June 04, 2015 at 22:00I'm trying to get an ADC input to work on the Discovery STM32L053 board. The VREF calibration value is 0x68D, reading channel 17 shows 0x5E9, which by my calculations makes VDD 3.325 volts, which matches what I read o...
Posted on May 29, 2015 at 02:55Hi,I am developing codes on STM32L0 microcontrollerI want to add flash read out protection function in the code.After I enable the PcROP(proprietary Code Read Out Protection), my codes do not work anymore. It does not ...
Posted on June 03, 2015 at 05:14 Must say the CubeMX generation tool is very good, and it really does make everything simpler. However, I run into a situation where I am using the STM32L051 and STM32F051 to test on a project connecting to the bl...
Posted on May 21, 2015 at 01:14It seems power pin on the generated pin assignments (especially pin 19 - 22) needs to be verified. Pin 21 should be VREF+ instead of VDDA?
Posted on June 04, 2015 at 16:40I'm trying to connect the output Compare together with the DMA controller for my STM32F3 discovery board.But I have a strange problem, it seems like the DMA controller is only copying one byte from the memory to the c...
Posted on June 03, 2015 at 19:20Hi,For a project I need to use internal band gap (V-Ref). so i want to know how to: 1- turn-on internal band-gap voltage reference 2- select internal band-gap voltage as referencetanx all #adc #stm32f103 #v-ref
Posted on June 04, 2015 at 00:35Can somebody explain me how to find cause of hardfault? I try to use solution from http://blog.frankvh.com/2011/12/07/cortex-m3-m4-hard-fault-handler/but buffer is empty.Here are core registers dump (from keil UI):SP ...
