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Disabling DSP and FPU for Cortex-M33 

Change shared by @Gabor Kertesz

Hard-fault on Musca was because of enabled floating point instructions,
disabling DSP and FPU.
pull/7792/head
Deepika 2018-08-22 10:37:20 -05:00
parent 37a5646372
commit ed58ff0405
1 changed files with 4 additions and 5 deletions
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9
tools/toolchains/arm.py
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@ -394,7 +394,9 @@ class ARMC6(ARM_STD):
self.flags['ld'].append("--cpu=%s" % target.core.lower()[:-1])
self.SHEBANG += " -mcpu=%s" % target.core.lower()[:-1]
elif target.core.startswith("Cortex-M33"):
self.flags['ld'].append("--cpu=8-M.Main")
self.flags['common'].append("-mcpu=cortex-m33+nodsp")
self.flags['common'].append("-mfpu=none")
self.flags['ld'].append("--cpu=Cortex-M33.no_dsp.no_fp")
elif not target.core.startswith("Cortex-M23"):
self.flags['common'].append("-mcpu=%s" % target.core.lower())
self.flags['ld'].append("--cpu=%s" % target.core.lower())
@ -411,9 +413,6 @@ class ARMC6(ARM_STD):
self.flags['common'].append("-mfloat-abi=softfp")
elif target.core.startswith("Cortex-M23"):
self.flags['common'].append("-march=armv8-m.base")
elif target.core.startswith("Cortex-M33"):
self.flags['c'].append("-march=armv8-m.main")
self.flags['cxx'].append("-march=armv8-m.main")
if target.core == "Cortex-M23" or target.core == "Cortex-M33":
self.flags['cxx'].append("-mcmse")
@ -439,7 +438,7 @@ class ARMC6(ARM_STD):
"Cortex-M33-NS": "Cortex-M33" }.get(target.core, target.core)
if target.core.startswith("Cortex-M33"):
self.flags['asm'].append("--cpu=8-M.Main")
self.flags['asm'].append("--cpu=Cortex-M33.no_dsp.no_fp")
else :
self.flags['asm'].append("--cpu=%s" % asm_cpu)