Hi,
as mentioned in an previous e-mail (### previous console printfs ###) I had a problem with Spartan3 serial slave when loading bitstream. I am using 1.3.0 version with Matthias improved supported patch for FPGA applied. After some tests I rollback the bitstream swapping to a previous version and voila .... everything is working now. I think that remove bitswapping at fpga_loadbitstream is not a good idea based on my tests for Spartan3. Any comments about some experience with Spartan3?
####### new console printfs ############# => tftp 100000 fpganew.bit Using FEC ETHERNET device TFTP from server 192.168.1.100; our IP address is 192.168.1.1 Filename 'fpganew.bit'. Load address: 0x100000 Loading: ######### done Bytes transferred = 131034 (1ffda hex) => fpga loadb 0 100000 ${filesize} do_fpga: fpga_data = 0x100000 do_fpga: device = 0 design filename = "fpganew.ncd" part number = "3s200tq144" date = "2008/ 3/25" time = "16:37:58" bytes in bitstream = 130952 fpga_get_desc: found fpga descriptor #0 @ 0x01ffad04 Spartan3_load: Launching Slave Serial Load Spartan3_ss_load: start with interface functions @ 0x01ff8c08 Spartan3_ss_load: Function Table: ptr: 0x01bb6a90 struct: 0x01ff8c08 pgm: 0x01fec034 init: 0x01fec0b4 clk: 0x01fec19c wr: 0x01fec1cc done: 0x01fec124
Loading FPGA Device 0... fpga_pre_fn:111: FPGA pre-configuration fpga_pgm_fn:122: FPGA PROGRAM asserted fpga_init_fn:145: INIT check... low fpga_pgm_fn:122: FPGA PROGRAM deasserted fpga_init_fn:145: INIT check... high ........................................
Done. =>
####### previous console prints ###########
=> tftp 100000 fpganew.bit Using FEC ETHERNET device TFTP from server 192.168.1.100; our IP address is 192.168.1.1 Filename 'fpganew.bit'. Load address: 0x100000 Loading: ######### done Bytes transferred = 131034 (1ffda hex) => fpga loadb 0 100000 ${filesize} do_fpga: fpga_data = 0x100000 do_fpga: device = 0 design filename = "fpga_top.ncd" part number = "3s200tq144" date = "2008/ 3/25" time = "16:37:58" bytes in bitstream = 130952 fpga_get_desc: found fpga descriptor #0 @ 0x01ffad04 Spartan3_load: Launching Slave Serial Load Spartan3_ss_load: start with interface functions @ 0x01ff8c00 Spartan3_ss_load: Function Table: ptr: 0x01bb6a90 struct: 0x01ff8c00 pgm: 0x01febf80 init: 0x01fec000 clk: 0x01fec0e8 wr: 0x01fec118 done: 0x01fec070
Loading FPGA Device 0... fpga_pre_fn:111: FPGA pre-configuration fpga_pgm_fn:122: FPGA PROGRAM asserted fpga_init_fn:145: INIT check... low fpga_pgm_fn:122: FPGA PROGRAM deasserted fpga_init_fn:145: INIT check... high ........................................fpga_init_fn:145: INIT check... high fpga_init_fn:145: INIT check... low ** CRC error during FPGA load. bytecount=130938, bsize=130952