tinyUSB/demos/bsp/boards/lpcxpresso/board_lpclink2.c

/**************************************************************************/
/*!
    @file     board_lpclink2.c
    @author   hathach (tinyusb.org)

    @section LICENSE

    Software License Agreement (BSD License)

    Copyright (c) 2013, hathach (tinyusb.org)
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
    1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
    3. Neither the name of the copyright holders nor the
    names of its contributors may be used to endorse or promote products
    derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    This file is part of the tinyusb stack.
*/
/**************************************************************************/

#include "../board.h"

#if BOARD == BOARD_LPCLINK2

#define BOARD_UART_PORT           LPC_USART0
#define BOARD_UART_PIN_PORT       0x0f
#define BOARD_UART_PIN_TX         10 // PF.10 : UART0_TXD
#define BOARD_UART_PIN_RX         11 // PF.11 : UART0_RXD

#define BOARD_MAX_LEDS  1

const static struct {
  uint8_t port;
  uint8_t pin;
}leds[BOARD_MAX_LEDS] = { {0, 8} };

void board_init(void)
{
  CGU_Init();

#if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / CFG_TICKS_PER_SECOND); // 1 msec tick timer
#endif

  //------------- USB -------------//


  //------------- LED -------------//
  for (uint8_t i=0; i<BOARD_MAX_LEDS; i++)
  {
    scu_pinmux(leds[i].port, leds[i].pin, MD_PUP|MD_EZI|MD_ZI, FUNC0);
    GPIO_SetDir(leds[i].port, BIT_(leds[i].pin), 1); // output
  }


#if CFG_UART_ENABLE
  //------------- UART -------------//
  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);

  UART_CFG_Type UARTConfigStruct;
  UART_ConfigStructInit(&UARTConfigStruct);
  UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
  UARTConfigStruct.Clock_Speed = 0;

  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
#endif
}

//--------------------------------------------------------------------+
// LEDS
//--------------------------------------------------------------------+
void board_leds(uint32_t on_mask, uint32_t off_mask)
{
  for (uint32_t i=0; i<BOARD_MAX_LEDS; i++)
  {
    if ( on_mask & BIT_(i))
    {
      GPIO_SetValue(leds[i].port, BIT_(leds[i].pin));
    }else if ( off_mask & BIT_(i)) // on_mask take precedence over off_mask
    {
      GPIO_ClearValue(leds[i].port, BIT_(leds[i].pin));
    }
  }
}

//--------------------------------------------------------------------+
// UART
//--------------------------------------------------------------------+
#if CFG_UART_ENABLE
uint32_t board_uart_send(uint8_t *buffer, uint32_t length)
{
  return UART_Send(BOARD_UART_PORT, buffer, length, BLOCKING);
}

uint32_t board_uart_recv(uint8_t *buffer, uint32_t length)
{
  return UART_Receive(BOARD_UART_PORT, buffer, length, BLOCKING);
}

uint8_t  board_uart_getchar(void)
{
  return UART_ReceiveByte(BOARD_UART_PORT);
}
#endif

#endif