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TMS570 is big-endian

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This commit is contained in:
Gregory Nutt 2015-12-26 14:49:02 -06:00
parent 555cc1e302
commit 456b8d1b14
4 changed files with 45 additions and 22 deletions
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59
configs/launchxl-tms57004/README.txt
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@ -85,33 +85,56 @@ Serial Console
This TMS570 has a single SCI. The SCI_RX and TX pins are connected to
the FTDI chip which provides a virtual COM port for the launchpad.
Debugging
=========
I used a Segger J-Link connected to the Launchpad via the JTAG connector.
The following table shows how I connected the 14-pin JTAG connector on
the Launchpad to the Segger 20-pin JTAG connector:
--- ----------- ------ ------------- --- ---------- ------ -------
J12 LAUCHPAD J-LINK J-LINK J12 LAUCHPAD J-LINK J-LINK
PIN SIGNAL PIN SIGNAL PIN SIGNAL PIN SIGNAL
--- ----------- ------ ------------- --- ---------- ------ -------
1 TMS 7 TMS 2 TRTSN 3 nTRST
3 TDI 5 TDI 4 GND 2 GND
5 PD (+3V3) 1 VTref 6 N/C - N/C
7 TDO 13 TDO 8 JTAG_SEL** 4 GND
9 RTCK 11 RTCK 10 GND 6 GND
11 TCK 9 TCK 12 GND 8 GND
13 EMU0* - N/C 14 EMU1* - N/C
--- ----------- ------ ------------- --- ---------- ------ -------
* Pulled high on board
** Needs to be grounded to select JTAG
Configurations
==============
Information Common to All Configurations
----------------------------------------
Each LaunchXL-TMS50704 configuration is maintained in a sub-directory and
can be selected as follow:
Information Common to All Configurations
----------------------------------------
Each LaunchXL-TMS50704 configuration is maintained in a sub-directory and
can be selected as follow:
cd tools
./configure.sh launchxl-tms57004/<subdir>
cd -
. ./setenv.sh
cd tools
./configure.sh launchxl-tms57004/<subdir>
cd -
. ./setenv.sh
Before sourcing the setenv.sh file above, you should examine it and perform
edits as necessary so that TOOLCHAIN_BIN is the correct path to the directory
than holds your toolchain binaries.
Before sourcing the setenv.sh file above, you should examine it and perform
edits as necessary so that TOOLCHAIN_BIN is the correct path to the directory
than holds your toolchain binaries.
And then build NuttX by simply typing the following. At the conclusion of
the make, the nuttx binary will reside in an ELF file called, simply, nuttx.
And then build NuttX by simply typing the following. At the conclusion of
the make, the nuttx binary will reside in an ELF file called, simply, nuttx.
make oldconfig
make
make oldconfig
make
The <subdir> that is provided above as an argument to the tools/configure.sh
must be is one of the following.
The <subdir> that is provided above as an argument to the tools/configure.sh
must be is one of the following.
NOTES:
NOTES:
1. These configurations use the mconf-based configuration tool. To
change any of these configurations using that tool, you should:

2
configs/launchxl-tms57004/nsh/Make.defs
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@ -68,7 +68,7 @@ ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCPUFLAGS = -mcpu=cortex-r4
ARCHCPUFLAGS = -mcpu=cortex-r4 -mbig-endian
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef

5
configs/launchxl-tms57004/nsh/defconfig
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@ -171,7 +171,7 @@ CONFIG_TMS570_GIO_IRQ=y
# CONFIG_ARCH_NOINTC is not set
# CONFIG_ARCH_VECNOTIRQ is not set
# CONFIG_ARCH_DMA is not set
CONFIG_ARCH_HAVE_IRQPRIO=y
# CONFIG_ARCH_HAVE_IRQPRIO is not set
# CONFIG_ARCH_L2CACHE is not set
# CONFIG_ARCH_HAVE_COHERENT_DCACHE is not set
# CONFIG_ARCH_HAVE_ADDRENV is not set
@ -184,9 +184,8 @@ CONFIG_ARCH_HAVE_MPU=y
# CONFIG_ARCH_HAVE_POWEROFF is not set
# CONFIG_ARCH_HAVE_RESET is not set
# CONFIG_ARCH_USE_MPU is not set
# CONFIG_ARCH_IRQPRIO is not set
CONFIG_ARCH_STACKDUMP=y
# CONFIG_ENDIAN_BIG is not set
CONFIG_ENDIAN_BIG=y
# CONFIG_ARCH_IDLE_CUSTOM is not set
CONFIG_ARCH_HAVE_RAMFUNCS=y
# CONFIG_ARCH_RAMFUNCS is not set

1
configs/launchxl-tms57004/scripts/flash-sram.ld
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@ -44,6 +44,7 @@ MEMORY
}
OUTPUT_ARCH(arm)
OUTPUT_FORMAT(elf32-bigarm)
EXTERN(_vectors)
ENTRY(_stext)