Correct UART Init PLEASE HELP

lpcware — Wed, 15 Jun 2016 19:27:44 GMT

Content originally posted in LPCWare by drvrh on Thu Jul 23 03:47:21 MST 2015
Hello,

I initialization and send data over UART, but on my computer (FTDi convert) nothing come.

This is my initialization:

void SerialInit(uint32_t baudrate){
uint32_t DL;

LPC_IOCON -> PIO1_7= (1 << 1);
LPC_SYSCON -> SYSAHBCLKCTRL|= (1 << 12);
LPC_SYSCON -> UARTCLKDIV= 0x01;//
DL = (SystemCoreClock * LPC_SYSCON -> SYSAHBCLKDIV)/(16 * baudrate * LPC_SYSCON -> UARTCLKDIV);
LPC_UART->LCR = 0b10000011;  //  8-bit character length, DLAB enable ( DLAB = 1)
LPC_UART->DLM = DL / 256;    //  Determines the baud rate of the UART (MSB Register)     (Access DLAB = 1)
LPC_UART->DLL = DL % 256;    //  Determines the baud rate of the UART (LSB Register)     (Access DLAB = 1)
LPC_UART->LCR = 0b00000011;  //  8-bit character length , DLAB disable ( DLAB = 0)
LPC_UART->FCR = 0b00000111;
}

Here is my function for send UART

void SendSerial(unsigned char send){
while(!(LPC_UART -> LSR & (1 << 5)));
LPC_UART -> THR = send;
}

I don't know what I set uncorrect.
In main program call function SerialInit(57600).

Please Help.
Thank you for answer.

Re: Correct UART Init PLEASE HELP

lpcware — Wed, 15 Jun 2016 19:27:45 GMT

Content originally posted in LPCWare by nerd herd on Fri Jul 24 08:02:47 MST 2015
Hi drvrh,

Any particular reason you are not using our software examples in our LPCOpen software platform? At the very least you can use it as a reference as we have our own UART initialization :)

https://www.lpcware.com/content/nxpfile/lpcopen-software-development-platform-lpc11xx-packages-0

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Correct UART Init PLEASE HELP

Re: Correct UART Init PLEASE HELP