From dc5f6aa37b4c1be3ae007eb15ab0856bc23b02ed Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?M=C3=A0rius=20Mont=C3=B3n?= Date: Wed, 25 Sep 2019 09:04:44 +0200 Subject: [PATCH] Makefile for newlib nano and new Trace peripheral explanied --- README.md | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 282c242..ea0c672 100644 --- a/README.md +++ b/README.md @@ -63,6 +63,7 @@ Helper classes: Current performance is about 1.500.000 instructions / sec in a Intel Core i5-5200@2.2Ghz and about 3.000.000 instructions / sec in a Intel Core i7-8550U@1.8Ghz. +Trace perihperal creates a xterm window where it prints out all received data. ### Structure ![Modules' hierarchy](https://github.com/mariusmm/RISC-V-TLM/blob/master/doc/Hierarchy.png) @@ -72,7 +73,7 @@ i5-5200@2.2Ghz and about 3.000.000 instructions / sec in a Intel Co | Base | Module | Description | | ---- | :----: | ---- | -| 0x40000000 | Trace | Output data directly to stdout | +| 0x40000000 | Trace | Output data to xterm | | 0x40004000 | Timer | LSB Timer | | 0x40004004 | Timer | MSB Timer | | 0x40004008 | Timer | MSB Timer Comparator | @@ -138,6 +139,11 @@ wait for long time ... $ export PATH=$PATH:/opt/riscv/bin ~~~ +In test/C/long_test/ example there is a Makefile that compiles a project with any .c files and links them against new-lib nano. +There is a Helper_functions.c file with defiitions of all missing functions needed by the library (**_read()**, **_close()**, **_fstat_r()**, +**_lseek_r()**, **_isatty_r()**, **_write()**). All of them are defined empty except **_write()** that is written to use the Trace perihperal. +The definition of the function **_write()** allows developer to use printf() as usual and the stdout will be redirected to the Trace perihperal. + ## Docker container There is a Docker container available with the latest release at https://hub.docker.com/r/mariusmm/riscv-tlm.