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Recent content by amintlk

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    Warning generated when i create new project in keil for stm32f10x with cmsis lib

    hi everyone i used mikroc pro for stm32 project before but i want to start programming in keil and using cmsis library , i create new project and i add gpio and rcc library for my first project, i didnt write anything in main.c but it has two warning! where is the problem? program: #include...
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    stm32f103 arm microcontroller doesn't program twice

    which part in debugger option ? i cant find anything related to write protection or something like that
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    stm32f103 arm microcontroller doesn't program twice

    thanks for your help .. i can program when i set boot0 pin . i think flash write protection is enable but how i could disable it ?
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    stm32f103 arm microcontroller doesn't program twice

    hi to all i have stm32f103RB and i make program with STMCUBEMX and IAR .. the program is for test and it is led blinker . after i program it for first time it's Ok but it doesn't program again .. the stm is running correctly but i can't program it again .. it happen for 2 micro and i use both...
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    sim900a doesnt send the valid message detail to microcontroller

    hi .. i used sim900a before and it work well .. but recently i use another sim900a again but when i send AT+CMGR=1 for sim900 to read the message detail it feedback me these +CMGR: 0,"",26 0791893905004100240C918939556271820000511172310320410748341A8D46A301 before that i received +CMTI...
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    stm32f103 timer prescaler doesnt effect

    i use mikroC Pro For ARM ..i drive rotary encoder with timer1 and it work well , but when i want to use prescaler by TIM1_PSC register it doesn't effect on my TIM1_CNT register and my output change base on prescaler=0; there are rotary encoder config code : RCC_APB2ENR.TIM1EN = 1...
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    [SOLVED] l298 over heating problem

    thanks a lot .. the problem was that audioguru mention .. ground wire between l298 voltage and 5v .. in my last one pcb there is connection between two ground but in new one pcb the track was clear from protel pcb " I dont know why or how? " .. i have very sensitive rf module in circuit ( i...
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    [SOLVED] l298 over heating problem

    Thanks all .. Diode is ultra fast diode uf4007.. and my freq is 10k .. My transformer is 2A and my motor is 300mA .. I check 5v with oscop and it doesn't have ripple.. Problem it's not level of voltage , problem is ripple voltage in pin4 (vs pin ) When I test last one circuit with 24...
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    [SOLVED] l298 over heating problem

    thanks all i have linear power supply 0-30v 0-3A ... when i use this as power supply , l298 work correctly without heating , but when i use 220 to 24v trans , my l298 get very hot .. when i check pin4 (vs) with oscilloscop , there are big ripple , but i cant decrease ripplr , even i change...
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    [SOLVED] l298 over heating problem

    Motor and power is same
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    [SOLVED] l298 over heating problem

    Thanks for your replay .. I use " older one's l298 " instead of " new one's l298 " , but it heated again .. so I don't think so .. I didn't use heatsink because the older one works well without heat sink .. - - - Updated - - - Thanks for your replay I check it a lot . And I clean up pcb ...
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    [SOLVED] l298 over heating problem

    hi to all i made a driver with l298 and it work well , i parallel two channel ... my motor was 24v 300mA .. but recently i made another one just like last one ,but in new one my l298 get very hot .. the motors are same ... i have both of them now , in older one my l298 work without heating and...
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    max485 recieve mode problem

    hi all i use max485 for rs485 communication ... it works correctly but i have little problem ... i tied RE and DE to one of microcontroller pin to control transmitt and receive mode .. and pin 1 called "RO" is for receive data over the rs485 and it's idle high and it connect to RX pin of...
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    problem with max485 half duplex multi transmitter

    hi i use max485 for first time .. but i have problem .. if i send data only in one way e.g. from master to slave or slave to master it work .. but when i use to send and receive data , it doesn't work correctly .. i change enable RE & DE pin correctly ... did anybody has exprience ?
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    don't apply change when i debug a program in C#

    it occur for only program .. and it didn't happen for other
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