Write RTC time by UART port ...

[Darklakebridge78]

Hello everyone! For some days I have been trying to create a firmware to program the RTC (DS1337) connected to a PIC32MX460F512L, through the serial and VbNet. To do this, I send the letter H followed by the time, for example: 2227 (h22 m27). I have tried to write this firmware which seems to work. But only once, because then the serial is blocked and it is no longer possible to write anything else. Where am I doing wrong? Has anyone ever done anything like this?

Code: Select all

     if (UART1_Data_Ready() <> 0) then
        UartDataReceived = UART1_read
            if UartDataReceived = 72 then                                          'IF THE CONTROL SOFTWARE SENDS "H" -> "HOURS" ON THE SERIAL ...

            for I = 0 to 3
               output[I] = UART1_read
            next I

            SetHr = ((Output[0] - 48) * 10) + Output[1]
            SetMin = ((Output[2] - 48) * 10) + Output[3]

            SetHr = dec2bcd(SetHr)
            SetMin = dec2bcd(SetMin)

            I2C2_Start()          ' issue start signal
            I2C2_Write(0xD0)      ' address DS1307
            I2C2_Write(0)         ' start from word at address
            I2C2_Write(0x00)      ' write 00 to seconds word
            I2C2_Write(SetMin)    'write minutes 
            I2C2_Write(SetHr)      ' write  hours 
            I2C2_Write(0x03)      ' write 7 - >Sat
            I2C2_Write(0x30)      ' write 4 to date word
            I2C2_Write(0x03)      ' write 11 (nov) to month word
            I2C2_Write(0x21)      ' write 17 to year word
            I2C2_Write(0x00)      ' alm1 seconds
            I2C2_Write(0x00)      ' alm1 minutes
            I2C2_Write(0x00)      ' alm1 hours
            I2C2_Write(0x00)      ' alm1 day/date
            I2C2_Write(0x00)      ' alm2 minutes
            I2C2_Write(0x00)      ' alm2 hours
            I2C2_Write(0x00)      ' alm2 day/date
            I2C2_Write(0x04)      ' turn off the squarewave output pin
            I2C2_Write(0x00)      ' clear the status registers
            I2C2_Stop()           ' issue stop signal

            VisualTftTime()

         end if
        end if

[Darklakebridge78]

Mikroe team, any help?

[Darklakebridge78]

I solved my problem using interrupt on UART1.