diff options
Diffstat (limited to 'libmaple/util.h')
| -rw-r--r-- | libmaple/util.h | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/libmaple/util.h b/libmaple/util.h index 1aae7bd..053731a 100644 --- a/libmaple/util.h +++ b/libmaple/util.h @@ -32,8 +32,6 @@ #ifndef _UTIL_H_ #define _UTIL_H_ -#define MAPLE_DEBUG 1 - #define BIT(shift) (1 << (shift)) #define BIT_MASK_SHIFT(mask, shift) ((mask) << (shift)) @@ -41,16 +39,9 @@ #define GET_BITS(x, m, n) ((((uint32)x) << (31 - (n))) >> ((31 - (n)) + (m))) /* Bit-banding macros */ -#define BITBAND_SRAM_REF 0x20000000 -#define BITBAND_SRAM_BASE 0x22000000 #define BITBAND_SRAM(a,b) ((BITBAND_SRAM_BASE + (a-BITBAND_SRAM_REF)*32 + (b*4))) // Convert SRAM address -#define BITBAND_PERI_REF 0x40000000 -#define BITBAND_PERI_BASE 0x42000000 #define BITBAND_PERI(a,b) ((BITBAND_PERI_BASE + (a-BITBAND_PERI_REF)*32 + (b*4))) // Convert PERI address - -#define COUNTFLAG *((volatile unsigned char*) (BITBAND_PERI(SYSTICK_CSR,2))) - #define REG_SET(reg, val) (*(volatile uint32*)(reg) = (val)) #define REG_SET_BIT(reg, bit) (*(volatile uint32*)(reg) |= BIT(bit)) #define REG_CLEAR_BIT(reg, bit) (*(volatile uint32*)(reg) &= ~BIT(bit)) @@ -66,6 +57,8 @@ #define __read(reg) *(volatile uint32*)(reg) #define __write(reg, value) *(volatile uint32*)(reg) = (value) +#define IS_POWER_OF_TWO(v) (v && !(v & (v - 1))) + #ifdef __cplusplus extern "C"{ #endif |