280 lines
9.6 KiB
Plaintext
280 lines
9.6 KiB
Plaintext
README.txt
|
|
==========
|
|
|
|
This is the README file for the NuttX port to the ZiLog ZNEO MCU.
|
|
|
|
- Console output is on UART0.
|
|
|
|
- NOTE: My board has a 20MHz crystal, but I have heard of other boards with
|
|
18.432MHz crystals. If you board has a diff crystal installed, then
|
|
modify the system frequency in include/board.h.
|
|
|
|
Contents
|
|
========
|
|
|
|
- ZDS-II Compiler Versions
|
|
- Patches
|
|
- Serial Console
|
|
- Selecting Configurations
|
|
- Configuration Sub-directories
|
|
|
|
ZDS-II Compiler Versions
|
|
========================
|
|
|
|
Version 4.10.2
|
|
|
|
The ZDS-II version 4.10.2 will not compile NuttX. It reports "internal
|
|
errors" on some of the files. Upgrades to ZDS-II are available for
|
|
download from the Zilog website: http://www.zilog.com/software/zds2.asp
|
|
|
|
Version 4.11.0
|
|
|
|
NuttX compiles correctly with the newer 4.11.0 version of the ZDS-II
|
|
toolchain. However, I have found a few issues:
|
|
|
|
- The code will not run without the -reduceopt option. There is,
|
|
apparently, some optimization related issue. This issue has not
|
|
been analyzed as of this writing.
|
|
|
|
- Not all NuttX logic will not run with the -regvars option. There is
|
|
at least one failure that has been reported to ZiLOG as incident 81400.
|
|
|
|
Version 4.11.1
|
|
|
|
As of this writing (30 September 2010), the latest release of ZDS-II for the
|
|
ZNEO is 4.11.1. It is unknown if this release includes fixes for incidents
|
|
81400 and 81459 or not. It is unknown if the code will run without -reduceopt
|
|
either. (Basically, it compiles with 4.11.1, but is untested with that version).
|
|
|
|
Version 4.12.0
|
|
|
|
Never tested
|
|
|
|
Version 5.0.0
|
|
|
|
Never tested
|
|
|
|
Version 5.0.1
|
|
|
|
On November 29, 2012, all of the z16f configurations were converted to use 5.0.1,
|
|
but have not been verified on a running target.
|
|
|
|
Paths were also updated that are specific to a 32-bit toolchain running on
|
|
a 64 bit windows platform. Change to a different toolchain, you will need
|
|
to modify the versioning in the Make.defs file; if you want to build
|
|
on a different platform, you will need to change the path in the ZDS binaries
|
|
in those that file and your PATH environment variable.
|
|
|
|
Version 5.2.1
|
|
On June 2, 2019, support for the 5.2.1 ZDS-II toolchain was added.
|
|
I started verification using 5.30 on June 2, 2019. To use this toolchain,
|
|
I had to suppress the gmtime() and gmtimer() because these were causing an
|
|
internal compiler error:
|
|
|
|
time\lib_gmtimer.c
|
|
P2: Internal Error(0xB47E59):
|
|
Please contact Technical Support
|
|
|
|
This is the change to suppress building these files:
|
|
|
|
diff --git a/libs/libc/time/Make.defs b/libs/libc/time/Make.defs
|
|
index 2a26d556ff..08fd0b7bcd 100644
|
|
--- a/libs/libc/time/Make.defs
|
|
+++ b/libs/libc/time/Make.defs
|
|
@@ -44,7 +44,7 @@ CSRCS += lib_asctime.c lib_asctimer.c lib_ctime.c lib_ctimer.c
|
|
ifdef CONFIG_LIBC_LOCALTIME
|
|
CSRCS += lib_localtime.c
|
|
else
|
|
-CSRCS += lib_mktime.c lib_gmtime.c lib_gmtimer.c
|
|
+CSRCS += lib_mktime.c #lib_gmtime.c lib_gmtimer.c
|
|
endif
|
|
|
|
The consequence is, of course, that these interfaces will not be available
|
|
to applications.
|
|
|
|
Another issue is that the ZDS-II version of stdarg.h does not provide
|
|
va_copy(). This affects libs/libc/lib_sysloc.c.
|
|
|
|
There are a few outstanding build issues, but it seems close enough for
|
|
the time being.
|
|
|
|
Version 5.2.2
|
|
Verified April 29, 2020. No serious compilation issues were encountered.
|
|
|
|
Other Versions
|
|
|
|
If you use any version of ZDS-II or if you install ZDS-II at any location
|
|
other than the default location, you will have to modify
|
|
arch/z16/src/z16f/Kconfig and
|
|
boards/z16/z16f/z16f2800100zcog/scripts/Make.defs.
|
|
Simply edit that file, changing 5.0.1 to whatever.
|
|
|
|
Patches
|
|
=======
|
|
|
|
A bug has been found in the ZDS-II toolchain version 5.0.1. a patch is
|
|
available to work around the bug. A summary of the nature the bug and
|
|
instructions for applying the patch follow.
|
|
|
|
Parameters are passed different to variadic functions (i.e., functions
|
|
that accept a varying number of parameters) than to regular functions. For
|
|
most functions, parameters are passed in registers, beginning with R1. But
|
|
for variadic functions, all parameters must be passed on the stack.
|
|
|
|
The logic works correctly for global functions, local functions, and most
|
|
function pointers. It does not work correctly for the case where a variadic
|
|
function point is included within a structure. In that case, the caller
|
|
inappropriately passes the parameters in registers; the receiver will
|
|
attempt to recover the parameters from the stack and a failure then follows.
|
|
|
|
This bug prevents the use of NSH with the ZNEO. However, a patch has been
|
|
developed that works around the problem. That patch can be found at
|
|
boards/z16/z16f/z16f2800100zcog/tools/zneo-zdsii-5_0_1-variadic-func-fix.patch.
|
|
In that directory is also a bash script that will apply that patch for you.
|
|
|
|
The patch would be applied when NuttX is configured as follows:
|
|
|
|
tools/configure.sh z16f2800100zcog:nsh
|
|
dopatch.sh
|
|
make
|
|
|
|
The patch can also be removed with:
|
|
|
|
dopatch.sh -R
|
|
|
|
See the section "Selecting Configurations" below.
|
|
|
|
Serial Console
|
|
==============
|
|
|
|
By default, console output is on UART1 which corresponds to the DB9
|
|
connector labelled CONSOLE.
|
|
|
|
UART1 is also available on JP2:
|
|
|
|
MCU PIN GPIO JP2
|
|
Pin 86 TXD1 PD5 JP2 Pin 26
|
|
Pin 87 RXD1 PD4 JP2 Pin 27
|
|
Vcc JP2 Pin 59
|
|
GND JP2 Pins 19, 39, 46, 48, 56
|
|
|
|
Selecting Configurations
|
|
========================
|
|
|
|
Variations on the basic z8f162800100zcog configuration are maintained
|
|
in subdirectories. To configure any specific configuration, do the
|
|
following steps:
|
|
|
|
tools/configure.sh z16f2800100zcog:<sub-directory>
|
|
make
|
|
|
|
Where <sub-directory> is the specific board configuration that you
|
|
wish to build. The following board-specific configurations are
|
|
available. You may also need to apply a path to NuttX before making.
|
|
Please refer the section "Patches" above"
|
|
|
|
Configuration Sub-directories
|
|
=============================
|
|
|
|
source/ and include/
|
|
--------------------
|
|
|
|
These directories contain common logic for all z16f2800100zcog
|
|
configurations.
|
|
|
|
nsh
|
|
---
|
|
nsh:
|
|
This configuration directory will built the NuttShell (NSH). See
|
|
the NSH user manual in the documents directory (or online at apache.nuttx.org).
|
|
See also the README.txt file in the nsh sub-directory for information
|
|
about using ZDS-II.
|
|
|
|
NOTES:
|
|
|
|
1. This configuration uses the mconf-based configuration tool. To
|
|
change this configuration using that tool, you should:
|
|
|
|
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
|
|
see additional README.txt files in the NuttX tools repository.
|
|
|
|
b. Execute 'make menuconfig' in nuttx/ in order to start the
|
|
reconfiguration process.
|
|
|
|
2. By default, this configuration assumes that you are using the
|
|
Cygwin environment on Windows. An option is to use the native
|
|
CMD.exe window build as described in the top-level README.txt
|
|
file. To set up that configuration:
|
|
|
|
-CONFIG_WINDOWS_CYGWIN=y
|
|
+CONFIG_WINDOWS_NATIVE=y
|
|
|
|
And after configuring, make sure that CONFIG_APPS_DIR uses
|
|
the back slash character. For example:
|
|
|
|
CONFIG_APPS_DIR="..\apps"
|
|
|
|
NOTES:
|
|
|
|
a. If you need to change the toolchain path used in Make.defs, you
|
|
will need to use the short 8.3 filenames to avoid spaces. On my
|
|
PC, C:\PROGRA~1\ is is C:\Program Files\ and C:\PROGRA~2\ is
|
|
C:\Program Files (x86)\
|
|
b. I have not tried to use this configuration with the native
|
|
Windows build, but I would expect the same issues as is listed
|
|
for the ostest configuration..
|
|
|
|
STATUS:
|
|
|
|
1. Note that you must apply the ZNEO patch if you are using ZDS-II 5.0.1.
|
|
See the README.txt file in the parent directory for more information.
|
|
The configuration will run correctly with the patch applied.
|
|
|
|
ostest
|
|
------
|
|
|
|
This builds the examples/ostest application for execution from FLASH.
|
|
See the README.txt file in the ostest sub-directory for information
|
|
about using ZDS-II. See also apps/examples/README.txt for information
|
|
about ostest.
|
|
|
|
NOTES:
|
|
|
|
1. This configuration uses the mconf-based configuration tool. To
|
|
change this configuration using that tool, you should:
|
|
|
|
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
|
|
see additional README.txt files in the NuttX tools repository.
|
|
|
|
b. Execute 'make menuconfig' in nuttx/ in order to start the
|
|
reconfiguration process.
|
|
|
|
2. By default, this configuration assumes that you are using the
|
|
Cygwin environment on Windows. An option is to use the native
|
|
CMD.exe window build as described in the top-level README.txt
|
|
file. To set up that configuration:
|
|
|
|
-CONFIG_WINDOWS_CYGWIN=y
|
|
+CONFIG_WINDOWS_NATIVE=y
|
|
|
|
And after configuring, make sure that CONFIG_APPS_DIR uses
|
|
the back slash character. For example:
|
|
|
|
CONFIG_APPS_DIR="..\apps"
|
|
|
|
NOTES:
|
|
|
|
a. If you need to change the toolchain path used in Make.defs, you
|
|
will need to use the short 8.3 filenames to avoid spaces. On my
|
|
PC, C:\PROGRA~1\ is is C:\Program Files\ and C:\PROGRA~2\ is
|
|
C:\Program Files (x86)\
|
|
b. At present, the native Windows build fails at the final link stages.
|
|
The failure is due to problems in arch/z16/src/nuttx.linkcmd that
|
|
is autogenerated by arch/z16/src/Makefile. The basic problem
|
|
is the spurious spaces and and carriage returns are generated at
|
|
the end of the lines after a line continuation (\ ^M). If these
|
|
trailing bad characters are manually eliminated, then the build
|
|
will succeed on the next try.
|
|
|
|
Check out any README.txt files in these <sub-directory>s.
|