From cd6ee714d3af1971d8911851a814003dfecb3f84 Mon Sep 17 00:00:00 2001 From: davor Date: Wed, 10 Jan 2018 15:47:09 +0100 Subject: [PATCH] manual update --- doc/MANUAL.md | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/doc/MANUAL.md b/doc/MANUAL.md index cdfd4a3..516bbb0 100644 --- a/doc/MANUAL.md +++ b/doc/MANUAL.md @@ -56,8 +56,8 @@ shared with ESP-32 ESP32 Placeholder to solder ESP-32 WROOM module. - ESP-32 can provide web interface for uploading bitstream - into FPGA and its config FLASH. + ESP-32 can provide standalone web interface for uploading + bitstream into FPGA and its config FLASH. Warning on PCB v1.7 ESP-32 must be isolated from all SD card pins otherwise ESP-32 won't boot no matter if SD card is inserted or not. @@ -110,7 +110,7 @@ Switching regulators use ferrite core coils L1,L2,L3 which can saturate at magnetic fields above 0.3T. Never approach neodymium magnets near powered board. -# Programming +# Programming over USB Use ftx_prog to change product/manufacturer name of FT231X chip: @@ -141,6 +141,8 @@ When it creates VME file, pass it to FleaFPGA-JTAG argument and wait FleaFPGA-JTAG bitstream-flash.vme +# Programming over JTAG header + External JTAG like FT2232 can be connected to JTAG header and it will program SRAM and FLASH at maximum speed possible. Even Diamond programmer can use any FT2232 module as a native programmer, @@ -151,11 +153,15 @@ Openocd accepts SVF files, everything applies the same as for VME files ddtcmd -oft -svfsingle -revd -if ulx3s_flash.xcf -of bitstream.svf -Programming and flashing from ESP-32 web interface is convenient -(device independent) and much faster than FT231X but still not as fast -as FT2232. It also accepts SVF files, only you need to limit SVF command -size to max 8 kilobits "-maxdata 8" because ESP-32 doesn't have enough -memory to buffer entire bitstream. +# Programming over WiFi + +ESP-32 provides standalone JTAG SVF player over web HTTP and TCP interface for +programming and flashing in convenient and OS independent way. Web interface +requires no client software installed except web browser. It is much faster than +FT231X but still not as fast as FT2232. It accepts SVF files but you need to limit +SVF command size to max 8 kilobits "-maxdata 8", effectively it will split +upload into many shorter SVF commands because ESP-32 doesn't have enough +memory to buffer entire bitstream delivered in a long single SVF command. ddtcmd -oft -svfsingle -revd -maxdata 8 -if ulx3s_flash.xcf -of bitstream.svf