Configuration Handbook - Kamami.pl

Using Flash Memory to Configure FPGAsFlash memory can be programmed prior to being put onto a board withstandard programming equipment or it can be programmed in-system bya processor or test equipment. Since different flash memories havedifferent algorithms, consult the flash memory data sheet forprogramming information.Figure 10–8 shows a configuration timing waveform of an EPM3128Adevice downloading data to an APEX, ACEX, or FLEX device.Figure 10–8. Configuration Timing WaveformnSTATUSCLKnCONFIGDCLKDATA0DATAD[7..0]D0 D1 D2D3DnzADDR[15..0]A0A1 A2 A3AnzCONF_DONERESTARTINIT_DONEConfiguration Design Filelibrary ieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;This section shows the MAXconfig design file that controls theconfiguration process on APEX, ACEX, or FLEX devices:entity MAXconfig isport(clock : in std_logic;init_done: in std_logic;nStatus: in std_logic;D : in std_logic_vector(7 downto 0);restart: in std_logic;Conf_Done: in std_logic;Data0 : out std_logic;Dclk : out std_logic;Altera Corporation 10–9April 2007 Configuration Handbook, Volume 2