9 #define NRF_VT_BACKEND_SAADC_CHANNEL 16 #define NRF_VT_BACKEND_RX_BUFFER_SIZE 23 #define NRF_VT_BACKEND_COPY_BUFFER_COUNT 27 #define NRF_VT_BACKEND_PWM_MODULE 34 #define NRF_VT_BACKEND_PWM_BASE_CLOCK 41 #define NRF_VT_BACKEND_TX_BUFFER_SIZE 45 #define NRF_VT_BACKEND_FRAME_CAST_COUNT 50 #define NRF_VT_START_BIT_VALUE 54 #define NRF_VT_START_BITS 58 #define NRF_VT_STOP_BIT_VALUE 62 #define NRF_VT_STOP_BITS 66 #define NRF_VT_END_DELAY 70 #define NRF_VT_DEFAULT_LINE_VALUE 74 #define NRF_VT_LSBIT_FIRST