m_farahani
Newbie level 1
Hi
i use my ouwn Spartan-3AN board. this board is compatible with Spartan-3AN starter kit. I have problem with nor flash read and write. my architecture is like attached picture. also my ucf file is like this:
also my mhs file is like this:
***i should comment that because xps_mch_ems bit direction in reverse, i change my port bit direction too.
now after implement my project and download to board, when i read nor flash always in all address i see 0xFFFEFFF and with writing data to all address value not change infinitely.
I monitored port by signal analyzer and i think all thing is true but memory nor work correctly!
i will be happy if help me.
i use my ouwn Spartan-3AN board. this board is compatible with Spartan-3AN starter kit. I have problem with nor flash read and write. my architecture is like attached picture. also my ucf file is like this:
Code:
NET "NOR_FLASH_Mem_A_pin<10>" LOC= "F16" | IOSTANDARD= LVCMOS33;#A21
NET "NOR_FLASH_Mem_A_pin<11>" LOC= "G16" | IOSTANDARD= LVCMOS33;#A20
NET "NOR_FLASH_Mem_A_pin<12>" LOC= "F18" | IOSTANDARD= LVCMOS33;#A19
NET "NOR_FLASH_Mem_A_pin<13>" LOC= "G17" | IOSTANDARD= LVCMOS33;#A18
NET "NOR_FLASH_Mem_A_pin<14>" LOC= "F19" | IOSTANDARD= LVCMOS33;#A17
NET "NOR_FLASH_Mem_A_pin<15>" LOC= "F20" | IOSTANDARD= LVCMOS33;#A16
NET "NOR_FLASH_Mem_A_pin<16>" LOC= "G20" | IOSTANDARD= LVCMOS33;#A15
NET "NOR_FLASH_Mem_A_pin<17>" LOC= "H20" | IOSTANDARD= LVCMOS33;#A14
NET "NOR_FLASH_Mem_A_pin<18>" LOC= "H18" | IOSTANDARD= LVCMOS33;#A13
NET "NOR_FLASH_Mem_A_pin<19>" LOC= "H19" | IOSTANDARD= LVCMOS33;#A12
NET "NOR_FLASH_Mem_A_pin<20>" LOC= "J18" | IOSTANDARD= LVCMOS33;#A11
NET "NOR_FLASH_Mem_A_pin<21>" LOC= "J19" | IOSTANDARD= LVCMOS33;#A10
NET "NOR_FLASH_Mem_A_pin<22>" LOC= "L16" | IOSTANDARD= LVCMOS33;#A9
NET "NOR_FLASH_Mem_A_pin<23>" LOC= "L15" | IOSTANDARD= LVCMOS33;#A8
NET "NOR_FLASH_Mem_A_pin<24>" LOC= "M18" | IOSTANDARD= LVCMOS33;#A7
NET "NOR_FLASH_Mem_A_pin<25>" LOC= "M17" | IOSTANDARD= LVCMOS33;#A6
NET "NOR_FLASH_Mem_A_pin<26>" LOC= "N19" | IOSTANDARD= LVCMOS33;#A5
NET "NOR_FLASH_Mem_A_pin<27>" LOC= "N18" | IOSTANDARD= LVCMOS33;#A4
NET "NOR_FLASH_Mem_A_pin<28>" LOC= "N17" | IOSTANDARD= LVCMOS33;#A3
NET "NOR_FLASH_Mem_A_pin<29>" LOC= "N15" | IOSTANDARD= LVCMOS33;#A2
NET "NOR_FLASH_Mem_A_pin<30>" LOC= "R16" | IOSTANDARD= LVCMOS33;#A1
#Data
NET "NOR_FLASH_Mem_DQ_pin<0>" LOC= "T17"| IOSTANDARD= LVCMOS33; #A0
NET "NOR_FLASH_Mem_DQ_pin<1>" LOC= "Y7" | IOSTANDARD= LVCMOS33; #D14
NET "NOR_FLASH_Mem_DQ_pin<2>" LOC= "V8" | IOSTANDARD= LVCMOS33; #D13
NET "NOR_FLASH_Mem_DQ_pin<3>" LOC= "V9" | IOSTANDARD= LVCMOS33; #D12
NET "NOR_FLASH_Mem_DQ_pin<4>" LOC= "Y12"| IOSTANDARD= LVCMOS33; #D11
NET "NOR_FLASH_Mem_DQ_pin<5>" LOC= "V14"| IOSTANDARD= LVCMOS33; #D10
NET "NOR_FLASH_Mem_DQ_pin<6>" LOC= "Y16"| IOSTANDARD= LVCMOS33; #D9
NET "NOR_FLASH_Mem_DQ_pin<7>" LOC= "W16"| IOSTANDARD= LVCMOS33; #D8
NET "NOR_FLASH_Mem_DQ_pin<8>" LOC= "V7" | IOSTANDARD= LVCMOS33; #D7
NET "NOR_FLASH_Mem_DQ_pin<9>" LOC= "W8" | IOSTANDARD= LVCMOS33; #D6
NET "NOR_FLASH_Mem_DQ_pin<10>" LOC= "U10"| IOSTANDARD= LVCMOS33; #D5
NET "NOR_FLASH_Mem_DQ_pin<11>" LOC= "T10"| IOSTANDARD= LVCMOS33; #D4
NET "NOR_FLASH_Mem_DQ_pin<12>" LOC= "W14"| IOSTANDARD= LVCMOS33; #D3
NET "NOR_FLASH_Mem_DQ_pin<13>" LOC= "Y15"| IOSTANDARD= LVCMOS33; #D2
NET "NOR_FLASH_Mem_DQ_pin<14>" LOC= "V15"| IOSTANDARD= LVCMOS33; #D1
NET "NOR_FLASH_Mem_DQ_pin<15>" LOC= "W18"| IOSTANDARD= LVCMOS33; #miso
#NET "NOR_FLASH_Mem_DQ_pin<15>" --> use NF_A<0> on pin T17 when NF_BYTE = High
#control
NET "NOR_FLASH_Mem_CEN_pin" LOC= "U18"| IOSTANDARD= LVCMOS33;
NET "NOR_FLASH_Mem_OEN_pin" LOC= "V19"| IOSTANDARD= LVCMOS33;
NET "NOR_FLASH_Mem_WEN_pin" LOC= "W20"| IOSTANDARD= LVCMOS33;
NET "NOR_FLASH_Mem_BEN_pin" LOC= "V20"| IOSTANDARD= LVCMOS33;
NET "NOR_FLASH_Mem_RPN_pin" LOC= "J20"| IOSTANDARD= LVCMOS33;
NET "NOR_FLASH_Mem_WP_pin" LOC= "K18"| IOSTANDARD= LVCMOS33;also my mhs file is like this:
Code:
PORT NOR_FLASH_Mem_A_pin = NOR_FLASH_Mem_A_pin_vslice_10_30_concat, DIR = O, VEC = [10:30]
PORT NOR_FLASH_Mem_DQ_pin = NOR_FLASH_Mem_DQ, DIR = IO, VEC = [0:15]
PORT NOR_FLASH_Mem_CEN_pin = NOR_FLASH_Mem_CEN, DIR = O
PORT NOR_FLASH_Mem_OEN_pin = NOR_FLASH_Mem_OEN, DIR = O
PORT NOR_FLASH_Mem_WEN_pin = NOR_FLASH_Mem_WEN, DIR = O
PORT NOR_FLASH_Mem_WP_pin = net_vcc, DIR = O
PORT NOR_FLASH_Mem_BEN_pin = net_vcc, DIR = O
PORT NOR_FLASH_Mem_RPN_pin = net_vcc, DIR = O***i should comment that because xps_mch_ems bit direction in reverse, i change my port bit direction too.
now after implement my project and download to board, when i read nor flash always in all address i see 0xFFFEFFF and with writing data to all address value not change infinitely.
I monitored port by signal analyzer and i think all thing is true but memory nor work correctly!
i will be happy if help me.