You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
1.5 KiB
YAML
40 lines
1.5 KiB
YAML
# Matt Johnston 2021
|
|
# Based on parameters from Greg Davill's Orangecrab-test-sw
|
|
|
|
{
|
|
"cpu": "None", # CPU type (ex vexriscv, serv, None)
|
|
"device": "LFE5U-85F-8MG285C",
|
|
"memtype": "DDR3", # DRAM type
|
|
|
|
"sdram_module": "MT41K256M16", # SDRAM modules of the board or SO-DIMM
|
|
"sdram_module_nb": 2, # Number of byte groups
|
|
"sdram_rank_nb": 1, # Number of ranks
|
|
"sdram_phy": "ECP5DDRPHY", # Type of FPGA PHY
|
|
|
|
# Electrical ---------------------------------------------------------------
|
|
"rtt_nom": "disabled", # Nominal termination. ("disabled" from orangecrab)
|
|
"rtt_wr": "60ohm", # Write termination. (Default)
|
|
"ron": "34ohm", # Output driver impedance. (Default)
|
|
|
|
# Frequency ----------------------------------------------------------------
|
|
"init_clk_freq": 24e6,
|
|
"input_clk_freq": 48e6, # Input clock frequency
|
|
"sys_clk_freq": 48e6, # System clock frequency (DDR_clk = 4 x sys_clk)
|
|
|
|
# 0 if freq >64e6 else 100. https://github.com/enjoy-digital/litedram/issues/130
|
|
"cmd_delay": 100,
|
|
|
|
# Core ---------------------------------------------------------------------
|
|
"cmd_buffer_depth": 16, # Depth of the command buffer
|
|
|
|
"dm_swap": true,
|
|
|
|
# User Ports ---------------------------------------------------------------
|
|
"user_ports": {
|
|
"native_0": {
|
|
"type": "native",
|
|
"block_until_ready": False,
|
|
},
|
|
},
|
|
}
|