@ -75,27 +75,26 @@
# define BIN 2
# define BYTE 0
# ifndef USBCON
// Define constants and variables for buffering incoming serial data. We're
// using a ring buffer (I think), in which rx_buffer_head is the index of the
// location to which to write the next incoming character and rx_buffer_tail
// is the index of the location from which to read.
// Use only powers of 2.
// : [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, ...]
# ifndef RX_BUFFER_SIZE
# define RX_BUFFER_SIZE 128
# endif
// 256 is the max TX buffer climit due to uint8_t head and tail.
# ifndef TX_BUFFER_SIZE
# define TX_BUFFER_SIZE 32
# endif
// Define constants and variables for buffering serial data.
// Use only 0 or powers of 2 greater than 1
// : [0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, ...]
# ifndef RX_BUFFER_SIZE
# define RX_BUFFER_SIZE 128
# endif
// 256 is the max TX buffer limit due to uint8_t head and tail.
# ifndef TX_BUFFER_SIZE
# define TX_BUFFER_SIZE 32
# endif
# ifndef USBCON
# if ENABLED(SERIAL_XON_XOFF) && RX_BUFFER_SIZE < 1024
# error " XON/ XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
# error "SERIAL_XON_XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
# endif
# if !IS_POWER_OF_2(RX_BUFFER_SIZE) || RX_BUFFER_SIZE < 2
# error "RX_BUFFER_SIZE must be a power of 2 greater than 1."
# endif
# if TX_BUFFER_SIZE && (TX_BUFFER_SIZE < 2 || TX_BUFFER_SIZE > 256 || !IS_POWER_OF_2(TX_BUFFER_SIZE))
# error "TX_BUFFER_SIZE must be 0, a power of 2 greater than 1, and no greater than 256."
# endif