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| author | Josh Rahm <joshuarahm@gmail.com> | 2018-01-23 23:14:31 -0700 |
|---|---|---|
| committer | Josh Rahm <joshuarahm@gmail.com> | 2018-01-23 23:14:31 -0700 |
| commit | 7aa10db46c13ad8adc88aadff39b8cf6b15db09d (patch) | |
| tree | b1e34a6703de33250b0bd97d34999b687a36a00f /02-usart/include/common.h | |
| parent | acd8afd83da625d36ef39bc01717f29f3b689952 (diff) | |
| download | stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.tar.gz stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.tar.bz2 stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.zip | |
rename folders to give notion of progression
Diffstat (limited to '02-usart/include/common.h')
| -rw-r--r-- | 02-usart/include/common.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/02-usart/include/common.h b/02-usart/include/common.h new file mode 100644 index 0000000..9d5c7cd --- /dev/null +++ b/02-usart/include/common.h @@ -0,0 +1,30 @@ +#ifndef COMMON__H +#define COMMON__H + +#include <stdint.h> + +/* Define __IO to be volatile if it's not already. */ +#ifndef __IO +#define __IO volatile +#endif + +#define bool int +#ifndef __cplusplus +#define true 1 +#define false 0 +#endif + +#define PACKED __attribute__((packed)) +#define BIT(n) (1 << (n)) + +#define RESERVED_CONCAT_IMPL(x, y) x ## y +#define RESERVED_MACRO_CONCAT(x, y) RESERVED_CONCAT_IMPL(x, y) +#define RESERVED(n) \ + bits_t RESERVED_MACRO_CONCAT(_r, __COUNTER__) :n + +#define RESERVE(type) \ + __IO type RESERVED_MACRO_CONCAT(_r, __COUNTER__) + +typedef uint32_t bits_t; + +#endif /* COMMON_H */ |