board_mcb4300.c

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/**************************************************************************/
/**************************************************************************/

#include "../board.h"

#if BOARD == BOARD_MCB4300

//--------------------------------------------------------------------+
// INCLUDE
//--------------------------------------------------------------------+
#define BOARD_MAX_LEDS      8

#define BOARD_UART_PORT     LPC_USART0
#define BOARD_UART_PIN_PORT 2
#define BOARD_UART_PIN_TX   0
#define BOARD_UART_PIN_RX   1

//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+
static const uint8_t ledports[] = {6, 6, 6, 6, 6, 4, 4, 4};
static const uint8_t ledbits[] = {24, 25, 26, 27, 28, 12, 13, 14};

const static struct {
  uint8_t port;
  uint8_t pin;
}leds[BOARD_MAX_LEDS] = {
    {6, 24}, {6, 25}, {6, 26}, {6, 27},
    {4, 28}, {4, 12}, {4, 13}, {4, 14}};

//--------------------------------------------------------------------+
// INTERNAL OBJECT & FUNCTION DECLARATION
//--------------------------------------------------------------------+

//--------------------------------------------------------------------+
// IMPLEMENTATION
//--------------------------------------------------------------------+
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) / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
#endif

  //------------- USB Bus power HOST ONLY-------------//
  // Keil VBUS0 is P6_3
  scu_pinmux(0x6, 3, MD_PUP | MD_EZI, FUNC1);           // P6_3 USB0_PWR_EN, USB0 VBus function

  // Keil VBUS1 is P9_5
  scu_pinmux(0x9, 5, MD_PUP | MD_EZI, FUNC2);               // P9_5 USB1_PWR_EN, USB1 VBus function

  //------------- LEDs init, J21 must be installed -------------//
  LPC_SCU->SFSPD_10  =  4;              // GPIO6[24]
  LPC_SCU->SFSPD_11  =  4;              // GPIO6[25]
  LPC_SCU->SFSPD_12  =  4;              // GPIO6[26]
  LPC_SCU->SFSPD_13  =  4;              // GPIO6[27]
  LPC_SCU->SFSPD_14  =  4;              // GPIO6[28]
  LPC_SCU->SFSP9_0   =  0;              // GPIO4[12]
  LPC_SCU->SFSP9_1   =  0;              // GPIO4[13]
  LPC_SCU->SFSP9_2   =  0;              // GPIO4[14]

  for(uint32_t i=0; i<BOARD_MAX_LEDS; i++)
  {
    GPIO_SetDir(leds[i].port, BIT_(leds[i].pin), 1); // output
  }

  //------------- 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
}

//--------------------------------------------------------------------+
// 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));
    }
  }
}

//--------------------------------------------------------------------+
// BUTTONS
//--------------------------------------------------------------------+
uint32_t board_buttons(void)
{
  return 0; // TODO buttons for mcb4300
}

//--------------------------------------------------------------------+
// UART
//--------------------------------------------------------------------+
uint8_t  board_uart_getchar(void)
{
  return UART_ReceiveByte(BOARD_UART_PORT);
}

void board_uart_putchar(uint8_t c)
{
  UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
}

#endif