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Diffstat (limited to 'doc/openocd.texi')
| -rw-r--r-- | doc/openocd.texi | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index ee67e75..d99917e 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -8674,9 +8674,10 @@ The load command for the FPGA @var{pld_name} will use a length for the preload o @end deffn -@deffn {FPGA Driver} {efinix} +@deffn {FPGA Driver} {efinix} [@option{-family} <name>] Both families (Trion and Titanium) sold by Efinix are supported as both use the same protocol for In-System Configuration. This driver can be used to load the bitstream into the FPGA. +For the option @option{-family} @var{name} is one of @var{trion|titanium}. @end deffn @@ -11834,7 +11835,7 @@ In a session using JTAG for its transport protocol, OpenOCD supports the functio of a JTAG-Host. The JTAG-Host is needed to connect the circuit over JTAG to the control-software. For more details see @url{http://ipdbg.org}. -@deffn {Command} {ipdbg} [@option{-start|-stop}] @option{-tap @var{tapname}} @option{-hub @var{ir_value} [@var{dr_length}]} [@option{-port @var{number}}] [@option{-tool @var{number}}] [@option{-vir [@var{vir_value} [@var{length} [@var{instr_code}]]]}] +@deffn {Command} {ipdbg} [@option{-start|-stop}] @option{-tap @var{tapname}} @option{-hub @var{ir_value} [@var{dr_length}]} [@option{-vir [@var{vir_value} [@var{length} [@var{instr_code}]]]}] [@option{-port @var{number}}] [@option{-tool @var{number}}] Starts or stops a IPDBG JTAG-Host server. Arguments can be specified in any order. Command options: @@ -11843,15 +11844,28 @@ Command options: @item @option{-tap @var{tapname}} targeting the TAP @var{tapname}. @item @option{-hub @var{ir_value}} states that the JTAG hub is reachable with dr-scans while the JTAG instruction register has the value @var{ir_value}. -@item @option{-port @var{number}} tcp port number where the JTAG-Host is listening. -@item @option{-tool @var{number}} number of the tool/feature. These corresponds to the ports "data_(up/down)_(0..6)" at the JtagHub. -@item @option{-vir [@var{vir_value} [@var{length} [@var{instr_code}]]]} On some devices, the user data-register is only reachable if there is a +@item @option{-port @var{number}} tcp port number where the JTAG-Host will listen. The default is 4242 which is used when the option is not given. +@item @option{-tool @var{number}} number of the tool/feature. These corresponds to the ports "data_(up/down)_(0..6)" at the JtagHub. The default is 1 which is used when the option is not given. +@item @option{-vir [@var{vir_value} [@var{length} [@var{instr_code}]]]} On some devices, the user data-register is reachable if there is a specific value in a second dr. This second dr is called vir (virtual ir). With this parameter given, the IPDBG satisfies this condition prior an access to the IPDBG-Hub. The value shifted into the vir is given by the first parameter @var{vir_value} (default: 0x11). The second parameter @var{length} is the length of the vir data register (default: 5). With the @var{instr_code} (default: 0x00e) parameter the ir value to shift data through vir can be configured. @end itemize @end deffn +or +@deffn {Command} {ipdbg} [@option{-start|-stop}] @option{-pld @var{name} [@var{user}]} [@option{-port @var{number}}] [@option{-tool @var{number}}] +Also starts or stops a IPDBG JTAG-Host server. The pld drivers are able to provide the tap and hub/IR for the IPDBG JTAG-Host server. +With the @option{-pld @var{name} [@var{user}]} the information from the pld-driver is used and the options @option{-tap} and @option{-hub} are not required. +The defined driver for the pld @var{name} gets selected. (The pld devices names can be shown by the command @command{pld devices}). + +The @verb{|USERx|} instructions are vendor specific and don't change between families of the same vendor. +So if there's a pld driver for your vendor it should work with your FPGA even when the driver is not compatible with your device for the remaining features. If your device/vendor is not supported you have to use the previous command. + +With [@var{user}] one can select a different @verb{|USERx|}-Instruction. If the IPDBG JTAG-Hub is used without modification the default value of 1 which selects the first @verb{|USERx|} instruction is adequate. + +The remaining options are described in the previous command. +@end deffn Examples: @example @@ -11866,6 +11880,13 @@ ipdbg -start -tap 10m50.tap -hub 0x00C -vir -port 60000 -tool 1 Starts a server listening on tcp-port 60000 which connects to tool 1 (data_up_1/data_down_1). The connection is through the TAP of a Intel MAX10 virtual jtag component (sld_instance_index is 0; sld_ir_width is smaller than 5). +@example +ipdbg -start -pld xc7.pld -port 5555 -tool 0 +@end example +Starts a server listening on tcp-port 5555 which connects to tool 0 (data_up_0/data_down_0). +The TAP and ir value used to reach the JTAG Hub is given by the pld driver. + + @node Utility Commands @chapter Utility Commands @cindex Utility Commands |