28 #ifndef PLATFORM_PCA10040_H_    29 #define PLATFORM_PCA10040_H_    39 #define LEDS_ACTIVE_STATE 0    50 #define BUTTONS_ACTIVE_STATE 0    52 #define BUTTON_PULL    NRF_GPIO_PIN_PULLUP    58 #define RX_PIN_NUMBER  8    59 #define TX_PIN_NUMBER  6    60 #define CTS_PIN_NUMBER 7    61 #define RTS_PIN_NUMBER 5    66 #define DC_DC_CIRCUITRY     true    70 #define NFC_CIRCUITRY       true    73 #define LFCLK_XTAL_PRESENT  true    76 #define HFCLK_XTAL_PRESENT  true    79 #define BOARD_LFCLKSRC_STRUCT  {.source        = NRF_CLOCK_LF_SRC_XTAL,            \    82                                     .accuracy = NRF_CLOCK_LF_ACCURACY_20_PPM}    84 #define BOARD_LFCLKSRC         NRF_CLOCK_LFCLK_Xtal