2 * Copyright © 2018 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
22 #define AO_STACK_SIZE 512
25 #define AO_PORT_TYPE uint16_t
27 #define ao_arch_nop() asm("nop")
29 #define ao_arch_task_members\
30 uint32_t *sp; /* saved stack pointer */
32 #define ao_arch_block_interrupts() asm("cpsid i")
33 #define ao_arch_release_interrupts() asm("cpsie i")
35 #define ao_arch_naked_declare __attribute__((naked))
36 #define ao_arch_naked_define
41 * We'll generally use the HSE clock through the PLL
44 #define AO_STM_NVIC_CLOCK_PRIORITY 0xf0 /* low priority for clock */
47 #define AO_PLLSRC AO_HSE
51 #define AO_PLLSRC STM_HSI_FREQ
55 #define AO_PLLIN (AO_PLLSRC / AO_PLL_M)
60 #define AO_PLL1_VCO (AO_PLLIN * AO_PLL1_N)
61 #define AO_PLL1_CLK_P (AO_PLL1_VCO / AO_PLL1_P)
62 #define AO_SYSCLK (AO_PLL1_CLK_P)
65 #define AO_PLL1_CLK_Q (AO_PLL1_VCO / AO_PLL1_Q)
70 #define AO_SYSCLK AO_PLLSRC
76 #define AO_PLL2_VCO (AO_PLLIN * AO_PLL2_N)
79 #define AO_PLL2_CLK_Q (AL_PLL2_VCO / AO_PLL2_Q)
83 #define AO_PLL2_CLK_R (AL_PLL2_VCO / AO_PLL2_R)
88 #define AO_HCLK (AO_SYSCLK / AO_AHB_PRESCALER)
89 #define AO_P1CLK (AO_HCLK / AO_APB1_PRESCALER)
90 #if AO_ABP1_PRESCALER == 1
91 #define AO_P1_TIMER_CLK AO_P1CLK
93 #define AO_P1_TIMER_CLK (AO_P1CLK * 2)
95 #define AO_P2CLK (AO_HCLK / AO_APB2_PRESCALER)
96 #if AO_ABP2_PRESCALER == 1
97 #define AO_P2_TIMER_CLK AO_P2CLK
99 #define AO_P2_TIMER_CLK (AO_P2CLK * 2)
101 #define AO_SYSTICK (AO_HCLK)
102 #define AO_PANIC_DELAY_SCALE (AO_SYSCLK / 12000000)
104 #endif /* _AO_ARCH_H_ */