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Sample type for 32bit register with bit and value access in C (little endian machine).
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| union register32_t { | |
| uint32_t val; | |
| struct { | |
| uint32_t b0:1; | |
| uint32_t b1:1; | |
| uint32_t b2:1; | |
| uint32_t b3:1; | |
| uint32_t b4:1; | |
| uint32_t b5:1; | |
| uint32_t b6:1; | |
| uint32_t b7:1; | |
| uint32_t b8:1; | |
| uint32_t b9:1; | |
| uint32_t b10:1; | |
| uint32_t b11:1; | |
| uint32_t b12:1; | |
| uint32_t b13:1; | |
| uint32_t b14:1; | |
| uint32_t b15:1; | |
| uint32_t b16:1; | |
| uint32_t b17:1; | |
| uint32_t b18:1; | |
| uint32_t b19:1; | |
| uint32_t b20:1; | |
| uint32_t b21:1; | |
| uint32_t b22:1; | |
| uint32_t b23:1; | |
| uint32_t b24:1; | |
| uint32_t b25:1; | |
| uint32_t b26:1; | |
| uint32_t b27:1; | |
| uint32_t b28:1; | |
| uint32_t b29:1; | |
| uint32_t b30:1; | |
| uint32_t b31:1; | |
| }B; | |
| }reg; | |
| // Set value of the register | |
| // reg.val = 0x02000349; | |
| // Read value of a bit | |
| // uint8_t bit = reg.B.b0; // 1 |
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