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Line 67... |
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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/*!Initialize the UART */
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/*!Initialize the UART */
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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void
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void
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_uart_init ()
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__uart_init ()
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{
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{
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int divisor;
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int divisor;
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/* Reset receiver and transmiter */
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/* Reset receiver and transmiter */
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UREG8 (UART_FCR) = UART_FCR_ENABLE_FIFO |
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UREG8 (UART_FCR) = UART_FCR_ENABLE_FIFO |
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Line 91... |
UREG8 (UART_LCR) |= UART_LCR_DLAB;
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UREG8 (UART_LCR) |= UART_LCR_DLAB;
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UREG8 (UART_DLL) = divisor & 0x000000ff;
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UREG8 (UART_DLL) = divisor & 0x000000ff;
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UREG8 (UART_DLM) = (divisor >> 8) & 0x000000ff;
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UREG8 (UART_DLM) = (divisor >> 8) & 0x000000ff;
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UREG8 (UART_LCR) &= ~(UART_LCR_DLAB);
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UREG8 (UART_LCR) &= ~(UART_LCR_DLAB);
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} /* _uart_init () */
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} /* __uart_init () */
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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/*!Put a character out on the UART
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/*!Put a character out on the UART
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@param[in] c The character to output */
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@param[in] c The character to output */
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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void _uart_putc (char c)
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void __uart_putc (char c)
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{
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{
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unsigned char lsr;
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unsigned char lsr;
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/* Wait until we are free to transmit */
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/* Wait until we are free to transmit */
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WAIT_FOR_THRE;
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WAIT_FOR_THRE;
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/* Put the character to be transmitted and wait until it has gone. */
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/* Put the character to be transmitted and wait until it has gone. */
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UREG8 (UART_TX) = c;
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UREG8 (UART_TX) = c;
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WAIT_FOR_XMITR;
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WAIT_FOR_XMITR;
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} /* _uart_putc () */
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} /* __uart_putc () */
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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/*!Get a character from the UART
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/*!Get a character from the UART
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@reurn The character read. */
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@reurn The character read. */
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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char
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char
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_uart_getc ()
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__uart_getc ()
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{
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{
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unsigned char lsr;
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unsigned char lsr;
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char c;
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char c;
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/* Wait until a char is available, then get it. */
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/* Wait until a char is available, then get it. */
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WAIT_FOR_CHAR;
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WAIT_FOR_CHAR;
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return UREG8 (UART_RX);
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return UREG8 (UART_RX);
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} /* _uart_getc () */
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} /* __uart_getc () */
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No newline at end of file
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No newline at end of file
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