andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

use unaligned access read for hw fifo

Browse Source
This commit is contained in:
hathach
2023-07-07 12:27:18 +07:00
parent 4bbacb1008
commit 4c156100fa
3 changed files with 72 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/common/tusb_mcu.h
View File

@@ -34,10 +34,16 @@
//------------- Unaligned Memory Access -------------//
// ARMv7+ (M3-M7, M23-M33) can access unaligned memory
#if (defined(__ARM_ARCH) && (__ARM_ARCH >= 7))
#define TUP_ARCH_STRICT_ALIGN 0
#ifdef __ARM_ARCH
// ARM Architecture set __ARM_FEATURE_UNALIGNED to 1 for mcu supports unaligned access
#if defined(__ARM_FEATURE_UNALIGNED) && __ARM_FEATURE_UNALIGNED == 1
#define TUP_ARCH_STRICT_ALIGN 0
#else
#define TUP_ARCH_STRICT_ALIGN 1
#endif
#else
// TODO default to strict align for others
// Should investigate other architecture such as risv, xtensa, mips for optimal setting
#define TUP_ARCH_STRICT_ALIGN 1
#endif