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1 | | -/** |
2 | | - * @file clock_init.c |
3 | | - * @brief Clock tree initialization — PLL, oscillators, bus dividers |
4 | | - */ |
5 | | - |
6 | | -#include "eos_clock.h" |
7 | | -#include <stdio.h> |
8 | | -#include <string.h> |
9 | | - |
10 | | -static eos_clock_config_t g_clock_cfg; |
11 | | - |
12 | | -int eos_clock_init(const eos_clock_config_t *cfg) |
13 | | -{ |
14 | | - if (!cfg) return -1; |
15 | | - |
16 | | - memcpy(&g_clock_cfg, cfg, sizeof(g_clock_cfg)); |
17 | | - |
18 | | - /* Platform-specific clock tree programming: |
19 | | - * 1. Select HSE/HSI source |
20 | | - * 2. Configure PLL (M, N, P, Q dividers) |
21 | | - * 3. Set AHB/APB bus dividers |
22 | | - * 4. Switch system clock to PLL |
23 | | - * 5. Update flash wait states for new frequency |
24 | | - * |
25 | | - * Each board port provides the actual register programming |
26 | | - * via the board config macros. */ |
27 | | - |
28 | | - g_clock_cfg.configured = true; |
29 | | - return 0; |
30 | | -} |
31 | | - |
32 | | -uint32_t eos_clock_get_sysclk(void) { return g_clock_cfg.sysclk_hz; } |
33 | | -uint32_t eos_clock_get_hclk(void) { return g_clock_cfg.hclk_hz; } |
34 | | -uint32_t eos_clock_get_pclk1(void) { return g_clock_cfg.pclk1_hz; } |
35 | | -uint32_t eos_clock_get_pclk2(void) { return g_clock_cfg.pclk2_hz; } |
36 | | - |
37 | | -void eos_clock_dump(const eos_clock_config_t *cfg) |
38 | | -{ |
39 | | - const char *sources[] = {"HSI","HSE","PLL","LSI","LSE"}; |
40 | | - printf("Clock: %s SYSCLK=%uMHz HCLK=%uMHz PCLK1=%uMHz PCLK2=%uMHz\n", |
41 | | - sources[cfg->source], |
42 | | - cfg->sysclk_hz / 1000000, |
43 | | - cfg->hclk_hz / 1000000, |
44 | | - cfg->pclk1_hz / 1000000, |
45 | | - cfg->pclk2_hz / 1000000); |
46 | | - if (cfg->use_pll) { |
47 | | - printf(" PLL: HSE=%uMHz M=%u N=%u P=%u Q=%u\n", |
48 | | - cfg->hse_hz / 1000000, |
49 | | - cfg->pll_m, cfg->pll_n, cfg->pll_p, cfg->pll_q); |
50 | | - } |
51 | | -} |
| 1 | +/** |
| 2 | + * @file clock_init.c |
| 3 | + * @brief Clock tree initialization — PLL, oscillators, bus dividers |
| 4 | + */ |
| 5 | + |
| 6 | +#include "eos_clock.h" |
| 7 | +#ifdef EBOOT_ENABLE_PRINTF |
| 8 | +#include <stdio.h> |
| 9 | +#endif |
| 10 | +#include <string.h> |
| 11 | + |
| 12 | +static eos_clock_config_t g_clock_cfg; |
| 13 | + |
| 14 | +int eos_clock_init(const eos_clock_config_t *cfg) |
| 15 | +{ |
| 16 | + if (!cfg) return -1; |
| 17 | + |
| 18 | + memcpy(&g_clock_cfg, cfg, sizeof(g_clock_cfg)); |
| 19 | + |
| 20 | + /* Platform-specific clock tree programming: |
| 21 | + * 1. Select HSE/HSI source |
| 22 | + * 2. Configure PLL (M, N, P, Q dividers) |
| 23 | + * 3. Set AHB/APB bus dividers |
| 24 | + * 4. Switch system clock to PLL |
| 25 | + * 5. Update flash wait states for new frequency |
| 26 | + * |
| 27 | + * Each board port provides the actual register programming |
| 28 | + * via the board config macros. */ |
| 29 | + |
| 30 | + g_clock_cfg.configured = true; |
| 31 | + return 0; |
| 32 | +} |
| 33 | + |
| 34 | +uint32_t eos_clock_get_sysclk(void) { return g_clock_cfg.sysclk_hz; } |
| 35 | +uint32_t eos_clock_get_hclk(void) { return g_clock_cfg.hclk_hz; } |
| 36 | +uint32_t eos_clock_get_pclk1(void) { return g_clock_cfg.pclk1_hz; } |
| 37 | +uint32_t eos_clock_get_pclk2(void) { return g_clock_cfg.pclk2_hz; } |
| 38 | + |
| 39 | +void eos_clock_dump(const eos_clock_config_t *cfg) |
| 40 | +{ |
| 41 | +#ifdef EBOOT_ENABLE_PRINTF |
| 42 | + const char *sources[] = {"HSI","HSE","PLL","LSI","LSE"}; |
| 43 | + printf("Clock: %s SYSCLK=%uMHz HCLK=%uMHz PCLK1=%uMHz PCLK2=%uMHz\n", |
| 44 | + sources[cfg->source], |
| 45 | + cfg->sysclk_hz / 1000000, |
| 46 | + cfg->hclk_hz / 1000000, |
| 47 | + cfg->pclk1_hz / 1000000, |
| 48 | + cfg->pclk2_hz / 1000000); |
| 49 | + if (cfg->use_pll) { |
| 50 | + printf(" PLL: HSE=%uMHz M=%u N=%u P=%u Q=%u\n", |
| 51 | + cfg->hse_hz / 1000000, |
| 52 | + cfg->pll_m, cfg->pll_n, cfg->pll_p, cfg->pll_q); |
| 53 | + } |
| 54 | +#else |
| 55 | + (void)cfg; |
| 56 | +#endif |
| 57 | +} |
| 58 | + cfg->pll_m, cfg->pll_n, cfg->pll_p, cfg->pll_q); |
| 59 | + } |
| 60 | +#else |
| 61 | + (void)cfg; |
| 62 | +#endif |
| 63 | +} |
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