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Recent content by uplifting_mind

  1. U

    [General] CRC function in Modbus protocol

    It´s work already. Thank you.
  2. U

    [General] CRC function in Modbus protocol

    In the lines for (int pos = 0; pos < len; pos++) { and for (int i = 8; i != 0; i--) { is still error "expected an expression".
  3. U

    [General] CRC function in Modbus protocol

    Hello, I trying to make program for building and sending Modbus RTU packet. Program contain a function for CRC. Results of CRC must be two bytes placed in the end of packet. This is what I have yet, there is function for CRC and function send_packet(), which I call from main. But there is some...
  4. U

    [General] Undefined symbols in Keil

    You are right, it working. But this variables must be realy declared in both of this files? There are no directives for situation, when I want to have this declarations only in header file?
  5. U

    [General] Undefined symbols in Keil

    Hello, I´m trying to build project with Rx and Tx interrupts from USART for STM32F10x. For Tx is used fifo buffer as a structure. During building this project, I obtained a following errors messages on the picture bellow. Notice that periph_init.h is included in both main.c and...
  6. U

    DS28E35 full data sheet

    I so sorry. I didn´t know that this is violation of the rules. Please remove my request.
  7. U

    DS28E35 full data sheet

    Hello, I´m searching for FULL data sheet of DS28E35 integrated circuit. Have someone advice where I can find it. I have only this ABRIDGED DATA SHEET (in attachment). Thank you.
  8. U

    USART Tx interrupt (STM32)

    Hello, I need complete program with interrupt from USART Rx and Tx. Rx interrupt is working fine, but with Tx I have problems. As I was awared, I must use a FIFO buffer for storing data from printf function and in interrupt handler I must send this data from FIFO to USART transmit register. In...
  9. U

    [SOLVED] Wave connections on PCB

    Hello, I'm wondering what is this waves connection on the PCBs. What is its purpose? Thanks you.
  10. U

    [SOLVED] Behavior of rail-to-rail op amp

    So, it will be work correctly in real circiut like schematic on first picture?
  11. U

    [SOLVED] Behavior of rail-to-rail op amp

    Hello, I need help with non-inverting amplifier. Why amplifier on first image don´t work like one on second picture? Do rail-to-rail op amp need different design in contrast to classic LM358 on the second pic.? Both amplifier is designed as voltage follower, but circuit with AD8032 don´t have...
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