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Recent content by hamidkavianathar

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    How secure an application with mbedTLS on lwip?

    hi there I am developping an MQTT application on LwIP. I want to secure my application with mbedTLS. I am using stm32h743 MCU. I am total confused. I have no idea how to do it. could you please guide me? thanks on advance.
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    [SOLVED] st-link debugger stops working

    Hi there I am developing a software with nucleo-h743zi board. it has a st-link programmer on board. when I run a led blinker example, I can program and debug my code successfully. but when I add freeRTOS and LwIP , .... to my software, I can program my MCU but I can't debug it. I am using IAR...
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    How to initialize ethernet and lwip on STM32h7 microcontroller?

    Hi @FlyingDutch Thanks for the comment. I had seen them before. when I want to generate its code with stm32cubemx I encounter with too many problems.
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    How to initialize ethernet and lwip on STM32h7 microcontroller?

    Hi guys I want to create tcp server application on my microcontroller. I am using nucleo-h743 board. could you please tell me how to do it? I must use stm32cubemx to generate its code. thanks.
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    How to do 8-bit wide write with FMC?

    Hey there I am using an custom board which has a stm32h743. I want to send data to an fpga with FMC bus. I know that FMC in stm32h7 is a 74-bit bus. In stm32cube I have configure 8-bit data and 8-bit address in SRAM mode. when I issue a 8-bit write it performs sequentially 8 time write. but I...
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    UNKNOWN BYPASS problem

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    UNKNOWN BYPASS problem

    I have a development board with the same FPGA that works properly. when I do "initialize chain" in my development board and my custom board, I see the exactly the same signals.
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    UNKNOWN BYPASS problem

    yes I have checked it. I have taken photo of them. TDI: TDO: TCK: TMS:
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    UNKNOWN BYPASS problem

    Hi KlausST thanks for the reply. I have checked it multiple times. I have measured them when I initialize the chain. they are constantly 3.3 and 1.2 volt. I have used a very high quality PMIC in my board.
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    UNKNOWN BYPASS problem

    thanks berry for attention. you are right. this is my schematic: I have checked the jtag signals on FPGA pins. they are electrically connected. I expect the IO pins be 0 or 3.3 volt. at least they should not change. but I have an led on board that some times is off and some times is on. I also...
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    UNKNOWN BYPASS problem

    hey guys I have designed a custom board with a fpga. when I do initialize chain in iMPACT I recevice this message: I have measured the voltage of all vcc pins. they are correct. but some IO pins have strange values. for example the voltage of them is 1.5 v. here is my schematic: could you...
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    [SOLVED] problem with programming the xilinx fpga

    Thanks barry for your reply. I found the problem. the problem was the program pin of FPGA was not pulled up.
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    [SOLVED] problem with programming the xilinx fpga

    thanks for your attention. no i don't have.
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    [SOLVED] problem with programming the xilinx fpga

    Hey guys I have used XC6SLX9-3TQG144I in my design. according to data sheet the jtag circuit must be like the illustrated image. I have implemented it in my board. my problem is that when fpga is not programmed (after connecting power supply) I can program my board successfully. done pin goes...
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    Want help to purchase a development board

    I recommend you to buy a RPi board. there are many reference books and tutorial on Internet. It is also very cheep.
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