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2013-01-01lm4f: Update stellaris example to new LM4F registersAlexandru Gagniuc
The LM4F provides new registers for system control. Each peripheral now has its own clock gating control register. The LM4F still supports the legacy registers for backwards compatibility. Use SYSCTL_RCGCGPIO instead of SYSCTL_RCGC to enable the GPIO. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2012-12-31lm4f: Compile with FPU supportAlexandru Gagniuc
Specify the -mfloat-abi=hard and -mfpu=fpv4-sp-d16 flags so that FPU is enabled by default. While this compiles with FPU support, in order to use the floating point types, the FPU must be explicitly enabled at runtime. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2012-12-31lm4f: Fix problems with example Makefile.includeAlexandru Gagniuc
Fix three distinct issues were present with examples/lm4f/Makefile.include: 1. Architecture flags were not being passed to the linker. This caused the linker to link against the wrong libraries when trying to use any C library, causing hard faults. 2. -lc and -lnosys were not linked against. Try using printf() without -lnosys 3. The makefile erroneously specified -mcpu=cortex-m3 instead of m4. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2012-12-31lm4f: Remove erroneous references to lm3sAlexandru Gagniuc
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2012-12-31lm4f: Add exammple for Stellaris Launchpad boardAlexandru Gagniuc
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>