source:
S-port/trunk/Core/Src/rng.c@
1
| Last change on this file since 1 was 1, checked in by , 3 years ago | |
|---|---|
| File size: 280 bytes | |
| Line | |
|---|---|
| 1 | #include "rng.h" |
| 2 | |
| 3 | void RNG_init(void) |
| 4 | { |
| 5 | __HAL_RCC_RNG_CLK_ENABLE(); |
| 6 | RNG->CR |= RNG_CR_RNGEN; |
| 7 | } |
| 8 | |
| 9 | void RNG_deinit(void) |
| 10 | { |
| 11 | __HAL_RCC_RNG_CLK_DISABLE(); |
| 12 | RNG->CR &= ~RNG_CR_RNGEN; |
| 13 | } |
| 14 | |
| 15 | uint32_t RNG_get(void) |
| 16 | { |
| 17 | while(!(RNG->SR & RNG_SR_DRDY)); |
| 18 | return RNG->DR; |
| 19 | } |
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