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lowRISC / ibex-demo-system

A demo system for Ibex including debug support and some peripherals
Apache License 2.0
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A basic peripheral to write ASCII output to a file and halt simulation from software #80

Open utku1998 opened 9 months ago

utku1998 commented 9 months ago

In the documentation it is written that there is a basic peripheral to write ASCII output to a file and halt simulation from software. I assume that this is only used in case of a Verilator right? In case of a real target, FPGA, the ASCII output will be sent to the UART and not written to the ".log" file.

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Functions like puts(), puthex(), putchar() work perfectly fine for the "Ibex Simple System (https://github.com/lowRISC/ibex/blob/master/examples/simple_system/README.md)" when simulating it on the Verilator. The output is written to file "ibex_simple_system.log":

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However, the same functions do not write to the file "ibex_demo_system.log", which is still empty after the simulation. Am I doing or understanding wrong or is there a issue there?

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Thanks in advance!

marnovandermaas commented 9 months ago

This is not something I have tested before. There is a SIM_CTRL_OUTPUT flag for cmake. Can you try the following command and report back? $ cmake -DSIM_CTRL_OUTPUT:BOOL=ON ..

utku1998 commented 9 months ago

Yes, it worked perfectly. Thanks!