Just to be sure, from your Path settings it looks like you are using
esp-idf from the release/v4.0 Branch, correct?
Michael
Am 04.04.20 um 19:44 schrieb Florian Klämpfl:
Am 04.04.20 um 16:06 schrieb Christo Crause via fpc-devel:
I'm keen to test the xtensa-freertos target, but it seems there are a
couple of patches missing from trunk.
It is possible to build an xtensa cross compiler, but the make files
doesn't know the xtensa-freertos target. To get the make files in
rtl updated, one needs to rebuild fpcmake, edit rtl/MakeFile.fpc and
add "dirs_freertos=freertos" to the target list, then run fpcmake. At
this point the the following make command proceeds up to sysutils:
make rtl FPC=~/fpc/3.3.1/compiler/ppcrossxtensa CPU_TARGET=xtensa
OS_TARGET=freertos BINUTILSPREFIX=xtensa-esp32-elf-
where the following errors crop up:
syssbh.inc(43,41) Error: Identifier not found "Double"
syssbh.inc(49,41) Error: Identifier not found "Single" etc.
I trust someone (Florian...) has a working build?
I sent Michael recently some instructions but I am not sure if they
are still working. As Pierre got qemu-xtensa working I am pushing the
linux port so we can test more easily the compiler.
- install esp-idf and execute
source ~/eps/esp-idf/export.sh
to get the pathes and environment set (namely tools path and
$IDF_PATH are needed)
- use the lazarus project fpc/compiler/ppcxtens.lpt to build an xtensa
compiler
- build the rtl (breaks currently at sysutils, doesn't matter):
cd rtl/freertos
make FPC=../../compiler/xtensa/pp OS_TARGET=freertos "OPT=-Cplx6
-Cawindowed -XPxtensa-esp32-elf-" clean all
- build the example hello world program from the esp-idf, copy all
generated .a into e.g. ~/xtensa-esp32-elf-libs
- create somewhere a hello world program, compile it with
fpc/compiler/xtensa/pp -Fu../rtl/units/xtensa-freertos/ -Tfreertos
-Cawindowed -XPxtensa-esp32-elf- -al -O3 -Wpesp32
-Fl~/xtensa-esp32-elf-libs
-Fl$HOME/.espressif/tools/xtensa-esp32-elf/esp-2019r2-8.2.0/xtensa-esp32-elf/xtensa-esp32-elf/lib/
hello
- get partition-table.bin and bootloader.bin from the hello_world
example compiled above and copy them into the same dir as the compiled
hello.bin
- flash with
esptool.py -p /dev/ttyUSB0 -b 460800 --before default_reset --after
hard_reset --chip esp32 write_flash --flash_mode dio --flash_size
detect --flash_freq 40m 0x1000 bootloader.bin 0x8000
partition-table.bin 0x10000 hello.bin
- monitor the output with:
idf_monitor.py --port /dev/ttyUSB0 hello.elf
_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
