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Recent content by yuvko

  1. Y

    getting wrong character in serial commmunication

    try un-remarking the "#define ports" line
  2. Y

    PIC 16F877A output_b() problem

    you will also need to set the pin to output in TRISB, as goldsmith said
  3. Y

    PIC 16F877A output_b() problem

    from page 45 of the datasheet: "Low-Voltage ICSP Programming (LVP) is enabled by default which disables the RB3 I/O function. LVP must be disabled to enable RB3 as an I/O pin and allow maximum compatibility to the other 28-pin and 40-pin mid-range devices." make sure you enabled RB3
  4. Y

    pin 2 of pic16f688 is not giving the output

    in your original code, after the for loop is ended you are running on "random" code, therefore you can not know the behaviour. the return from the main is meaningless, you should not leave the main function.
  5. Y

    [SOLVED] 24C32 read and write isses

    you have 2 address bytes in 24C32 not 1 like in the 24c02
  6. Y

    Where's the error in this code for a Cortex M3 (stm32F103)

    1) make sure that stm32f10x_gpio.h is included in stm32f10x_lib.h. 2) you will also need to enable the port clock before using it.
  7. Y

    [SOLVED] sending data through hyper terminal not receive correctly in pic18f4520 (USART)

    if you received a byte, you do not need to wait for timeout. add a "rx_timeout = 0;" after reading the received byte
  8. Y

    [SOLVED] sending data through hyper terminal not receive correctly in pic18f4520 (USART)

    check your stop bits configuration, it looks like you only missing the last bit (0xb1 instead of 0x61)
  9. Y

    Error - section '.udata_heap_1.o' can not fit the section. Section '.udata_heap_1.o'

    maybe you get the error because the heap is larger than the MCU memory bank, sorry but i do not know how it is handled with the FreeRTOS on PIC. try looking for different memory models.
  10. Y

    Error - section '.udata_heap_1.o' can not fit the section. Section '.udata_heap_1.o'

    you should look where the size of the heap is defined and try to increase it
  11. Y

    How to recover data which is coded using machester line coding?

    here is one way to do it (with known clock rate): 1) wait for a change on your rx line. 2) from the change 3/4 of the clock rate cycle. 3) get the Rx line level as data (1 or 0). go back to step 1 - - - Updated - - -
  12. Y

    Alternative to 16f628a for interrupts

    most of the time your leds will not turn off again since you are not running led1() when there is no hit.
  13. Y

    prolem in 8051 sinking current

    how fast are you changing the bit controling the LED? maybe it is too fast for the eye, try a slower change.
  14. Y

    Alternative to 16f628a for interrupts

    hi, first, i think you should read one of the tutorials about interrupts found on the net. after that configure one of your PIC timers to overflow every 1mSec and enable its interrupt. than, in your main loop do something like this: while(1) // continually { if (PORTA.f0) // if...
  15. Y

    Problem with BTFSC instruction Pic16f877A in PICC

    is it possible that bit 5 is already set before? can you post all the code?
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