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Hi,
I have create some components for SoPC Builder and now I am working on the device drivers. Some of my components serialize datas and I need to setup the output frequency. This frequency is function of the avalon port clock frequency. I see that for custom component, the avalon port clock frequency isn't reported in the system.h file ! For some components like the ALTERA_AVALON_UART, when I create the system library I can find the frequency of the avalon port input clock.#define <component_name>_FREQ 50000000
Someone know how to do that for custom components ? Thanks for any help Fabrice
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Hello,
It's allready some time ago, but I found a solution for QSYS: In the xxx_hw.tcl:# # parameters#
add_parameter CLOCK_RATE POSITIVE 100000000 ""
set_parameter_property CLOCK_RATE DEFAULT_VALUE 100000000
set_parameter_property CLOCK_RATE DISPLAY_NAME CLOCK_RATE
set_parameter_property CLOCK_RATE WIDTH ""
set_parameter_property CLOCK_RATE TYPE POSITIVE
set_parameter_property CLOCK_RATE UNITS Hertz
set_parameter_property CLOCK_RATE DESCRIPTION ""
set_parameter_property CLOCK_RATE HDL_PARAMETER true
set_parameter_property CLOCK_RATE SYSTEM_INFO_TYPE CLOCK_RATE
set_parameter_property CLOCK_RATE SYSTEM_INFO_ARG clock
# # parameters for system.h# set in ELABORATION_CALLBACK because only then, the parameters are set...#
set_module_property ELABORATION_CALLBACK elaborate
proc elaborate {} {
set_module_assignment embeddedsw.CMacro.FREQ u
}
This gives the folowing line in system.h: #define MODULE_NAME_FREQ 100000000u
This solution is not realy documented somewhere. But it looks like set_module_assignment embeddedsw.CMacro.XXX text
defines #define MODULE_NAME_XXX text
For the clock frequenty, this can only be done in the elaborate callback because the clock is not known at loading time. Regards, Hannes
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