Hello Filip,

I'm using the STM32F405RGT6.

Best regards

Christian

Hi there, I have problems mapping the external interrupts. On Port PA2 I have a button. I'm not able to map the interrupt to this Portpin. External Interrupts on PC2, or PC3, or PD.... everything works fine, but not on Port A2. void ExtInt() iv IVT_INT_EXTI2 ics ICS_AUTO { Exti_Pr.B2 = 1; if (light_...

Hello, thanks for the reply. I have seen the schemes, but the two are only for external clock (25MHz). I want to use the internal 8MHz clock. This speed is internal divided by two so that I have 4 MHz at the PLLSRC switch. Now it is importand to know how the PLL2, PLL3 switches work, to select the r...

Hello Boris, thanks for reply. Like I described in my first post, I want to use an MCU from the STM32F107** family. (STM32F107RC*) The max. internal clock with this MCU is 64MHz. As PHY I want to use an LAN8710 chip. The internal PLLs are my main problem (See another topic from me). In this topic I ...

Hello all, I'm a little bit confuesed with the configuration bits in the 'Edit Project' page for the STM32F107 family. According to the reference dokument RM0008 I try to understand the clock configuration. Page 90 of this document shows the clock tree. In this tree I only find one PLLMUL. In the 'E...

Hello all,

I want to use the STM32F107RC** with internal clock.

Is it possible to use the internal ethernet module with the internal clock (64Mhz max)?

Which clock speed is at least required for using ethernet?


Thanks in advance


CS

Hello lpmsr,

thanks for the PM. Now I got the 'DRAFT' datasheet. I'm a little bit confuised, that mE has made his own design!?

The reference design is allmost clear. At the end we have solved the problems on an other, but working, way.

Good luck for your design.

Best regards

CS

Hello lpmsr, I haven't heard something about an EVE-eval board from FTDI so far. So we have designed a new PCB. For us the sound isn't as importend as the graphic, but the user like to hear a 'sound' when he is touching the screen. For this the changes are verry good. (No disturbances and a clear cl...

Hello, I have build my own STM32 system according to the datasheets for all the used peripheral chips (flash, DAC, PHY 8720 a.s.o.) Everything works fine without the Ethernet. Comparing the schematic from the mcu card from mikroe with my schematics I found a little difference wich is not clear. So m...

Hello,

I disagree with you milos. Even the click sounds are unusable because of the disturbances.

After redesigning the board the results are pretty much better.


Best regards

CS

Hello Milos, I checked the ST Forum before I wrote in this forum. When I try the calculation from the ST forum I got also unuseable values. They use 3.3 as the reference and for my understanding this is the wrong way. It doesn't matter 3.3V or 1.21V as the reference, the result is wrong. Best regard...

Hello,

I'm not sure, but VREFINT is 1.21 Volt -> Datasheet page 135.

So I should calculate with 1.21 Volt!?

The result is nearly the same. No correct temperature

I really need help.

Best regards

CS

Hello milos.vicentijevic, thanks for the reply. When I change the factor to "V_ADC /=2.5" the digits left of the decimal point seem to be right. (DS18B20 -> 25.4 °C; MCU ->25.2 °C) But now touching the MCU with my fingers or cooling down the MCU with ice-spray makes no difference. The digits left of...

Hello all, I'm trying to read the internal temperature of the STM32F407 on the Easy MxPro v7. The STM32F4xx Reference page 289 discribes step by step how it should work. void MCU_Temp(){ long ADC_Value = 0; char test_txt[15]; float V_ADC = 0; ADC1_Init(); ADC1 ADC1_SMPR1 |= 0x001C0000; //sample time...

Hello rus51,

thanks for the fast reply.

Yes, you are right, I have switched over to the SPI bus.

It would be nice, if you can help me with working code. The tranfer from I²C to SPI should not be so hard.

Do you have tested the temperature from the gyro sensor?

Regards

CS