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parametrize timeout max

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This commit is contained in:
Romain Dolbeau 2021-01-13 04:47:10 -05:00
parent f5c79291dd
commit 1dbdf68b8c
1 changed files with 6 additions and 5 deletions
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11
sbus-to-ztex-gateware/xess_sdcard_wrapper.vhd
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@ -95,7 +95,8 @@ begin
label_xess_sdcard_core: SdCardCtrl
generic map (
BLOCK_SIZE_G => BLOCK_SIZE_G,
CARD_TYPE_G => SDHC_CARD_E
CARD_TYPE_G => SDHC_CARD_E,
SPI_FREQ_G => 25.0
)
port map (
clk_i => xess_sdcard_wrapper_clk,
@ -119,8 +120,8 @@ begin
xess_sdcard_wrapper: process (xess_sdcard_wrapper_rst, xess_sdcard_wrapper_clk)
variable init_done : boolean := false;
constant TIMEOUT_MAX : integer := 1000000;
variable timeout_counter : natural range 0 to TIMEOUT_MAX := 0;
constant TIMEOUT_MAX : integer := 5000000;
variable timeout_counter : natural range 0 to TIMEOUT_MAX := TIMEOUT_MAX;
variable timedout : std_logic_vector(15 downto 0) := x"0000";
variable byte_counter : natural range 0 to BLOCK_SIZE_G := 0; -- fixme, wasteful
variable databuf : std_logic_vector(127 downto 0);
@ -252,13 +253,13 @@ output_fifo_wr_en <= '1';
--output_fifo_in <= '1' & x"3000" & sd_error & x"00000000000000000000000000000000";
--output_fifo_wr_en <= '1';
sd_hndshk_i <= '0';
timeout_counter := TIMEOUT_MAX;
IF ((byte_counter mod 16) = 0) THEN
output_fifo_in <= '0' & last_addr(15 downto 0) & conv_std_logic_vector(buf_counter,16) & databuf;
output_fifo_wr_en <= '1';
buf_counter := buf_counter + 1;
END IF;
IF (byte_counter = BLOCK_SIZE_G) THEN
timeout_counter := TIMEOUT_MAX;
XESS_SDCARD_State <= XESS_SDCARD_WAIT_NOTBUSY;
ELSE
XESS_SDCARD_State <= XESS_SDCARD_READ_WAIT_READ;
@ -330,8 +331,8 @@ output_fifo_wr_en <= '1';
--output_fifo_in <= '1' & x"3000" & sd_error & x"00000000000000000000000000000000";
--output_fifo_wr_en <= '1';
sd_hndshk_i <= '0';
timeout_counter := TIMEOUT_MAX;
IF (byte_counter = BLOCK_SIZE_G) THEN
timeout_counter := TIMEOUT_MAX;
XESS_SDCARD_State <= XESS_SDCARD_WAIT_NOTBUSY;
ELSE
XESS_SDCARD_State <= XESS_SDCARD_WRITE_WAIT_WRITE;