board_lpcxpresso1347.c

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

#include "../board.h"

#if BOARD == BOARD_LPCXPRESSO1347

#define LED_PORT                  (0)
#define LED_PIN                   (7)
#define LED_ON                    (1)
#define LED_OFF                   (0)

const static struct {
  uint8_t port;
  uint8_t pin;
} buttons[] =
{
    {1, 22 }, // Joystick up
    {1, 20 }, // Joystick down
    {1, 23 }, // Joystick left
    {1, 21 }, // Joystick right
    {1, 19 }, // Joystick press
    {0, 1  }, // SW3
//    {1, 4  }, // SW4 (require to remove J28)
};

enum {
  BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
};


void board_init(void)
{
  SystemInit();

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

  GPIOInit();

  //------------- LED -------------//
  GPIOSetDir(LED_PORT, LED_PIN, 1);

  //------------- BUTTON -------------//
  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) GPIOSetDir(buttons[i].port, BIT_(buttons[i].pin), 0);

  //------------- UART -------------//
  UARTInit(CFG_UART_BAUDRATE);

}

//--------------------------------------------------------------------+
// LEDS
//--------------------------------------------------------------------+
void board_leds(uint32_t on_mask, uint32_t off_mask)
{
  if (on_mask & BIT_(0))
  {
    GPIOSetBitValue(LED_PORT, LED_PIN, LED_ON);
  }else if (off_mask & BIT_(0))
  {
    GPIOSetBitValue(LED_PORT, LED_PIN, LED_OFF);
  }
}

//--------------------------------------------------------------------+
// BUTTONS
//--------------------------------------------------------------------+
static bool button_read(uint8_t id)
{
  return !GPIOGetPinValue(buttons[id].port, buttons[id].pin); // button is active low
}

uint32_t board_buttons(void)
{
  uint32_t result = 0;

  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) result |= (button_read(i) ? BIT_(i) : 0);

  return result;
}

//--------------------------------------------------------------------+
// UART
//--------------------------------------------------------------------+
void board_uart_putchar(uint8_t c)
{
  UARTSend(&c, 1);
}

uint8_t  board_uart_getchar(void)
{
  return 0;
}

#endif