Clean up unused signals in UART

diff --git a/libraries/rs232/rs232_uart_opt.vhd b/libraries/rs232/rs232_uart_opt.vhd
index 0ad215a2e3aeb5634f3c672e56083ebf59d1a801..1270912a4ae4171dafcf97b7d302e322ce8609e4 100644 (file)
--- a/libraries/rs232/rs232_uart_opt.vhd
+++ b/libraries/rs232/rs232_uart_opt.vhd
@@ -170,8 +170,6 @@ architecture behavioral of rs232_uart_opt is
 
        -- Tx signals
        signal txqh_stb:       std_logic;
-       signal txqh_ack:       std_logic;
-       --signal txqh_dat:     std_logic;  -- Comes from dat_i
        signal txqt_stb:       std_logic;
        signal txqt_ack:       std_logic;
        signal txqt_dat:       std_logic_vector(7 downto 0);
@@ -183,9 +181,6 @@ architecture behavioral of rs232_uart_opt is
        signal tx_internal:    std_logic;
 
        -- Rx signals
-       signal rxqh_stb:       std_logic;
-       signal rxqh_ack:       std_logic;
-       signal rxqh_dat:       std_logic_vector(7 downto 0);
        signal rxqt_stb:       std_logic;
        signal rxqt_ack:       std_logic;
        signal rxqt_dat:       std_logic_vector(7 downto 0);
@@ -362,7 +357,7 @@ begin
                        clk_i    => clk_i,
 
                        h_stb_i  => txqh_stb,
-                       h_ack_o  => txqh_ack,
+                       h_ack_o  => open,
                        h_dat_i  => dat_i,
 
                        t_stb_o  => txqt_stb,

diff --git a/libraries/utility/fifo16.vhd b/libraries/utility/fifo16.vhd
index 8eea1bb22cce7d20752469b3bba198e4293c89c0..9cb0f127a7c6e5eb978987abd1343d26478111d2 100644 (file)
--- a/libraries/utility/fifo16.vhd
+++ b/libraries/utility/fifo16.vhd
@@ -35,7 +35,6 @@ architecture behavioral of fifo_16 is
        type data_array_t is array(natural range <>) of std_logic_vector(WIDTH-1 downto 0);
 
        signal data_array_reg:   data_array_t(15 downto 0);
-       signal data_array_shift: std_logic;
 
        signal index_reg:        unsigned(4 downto 0);
        signal index_up:         std_logic;