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 1024
25 #define AO_STACK_ALIGNMENT __attribute__ ((aligned(8)))
27 #define AO_PORT_TYPE uint16_t
29 #define ao_arch_nop() asm("nop")
31 #define ao_arch_task_members\
32 uint32_t *sp; /* saved stack pointer */
34 #define ao_arch_naked_declare __attribute__((naked))
35 #define ao_arch_naked_define
40 * We'll generally use the HSE clock through the PLL
43 #define AO_STM_NVIC_CLOCK_PRIORITY 0xf0 /* low priority for clock */
46 #define AO_PLLSRC AO_HSE
50 #define AO_PLLSRC STM_HSI_FREQ
54 #define AO_PLLIN (AO_PLLSRC / AO_PLL_M)
59 #define AO_PLL1_VCO (AO_PLLIN * AO_PLL1_N)
60 #define AO_PLL1_CLK_P (AO_PLL1_VCO / AO_PLL1_P)
61 #define AO_SYSCLK (AO_PLL1_CLK_P)
64 #define AO_PLL1_CLK_Q (AO_PLL1_VCO / AO_PLL1_Q)
69 #define AO_SYSCLK AO_PLLSRC
75 #define AO_PLL2_VCO (AO_PLLIN * AO_PLL2_N)
78 #define AO_PLL2_CLK_Q (AL_PLL2_VCO / AO_PLL2_Q)
82 #define AO_PLL2_CLK_R (AL_PLL2_VCO / AO_PLL2_R)
87 #define AO_HCLK (AO_SYSCLK / AO_AHB_PRESCALER)
88 #define AO_P1CLK (AO_HCLK / AO_APB1_PRESCALER)
89 #if AO_ABP1_PRESCALER == 1
90 #define AO_P1_TIMER_CLK AO_P1CLK
92 #define AO_P1_TIMER_CLK (AO_P1CLK * 2)
94 #define AO_P2CLK (AO_HCLK / AO_APB2_PRESCALER)
95 #if AO_ABP2_PRESCALER == 1
96 #define AO_P2_TIMER_CLK AO_P2CLK
98 #define AO_P2_TIMER_CLK (AO_P2CLK * 2)
100 #define AO_SYSTICK (AO_HCLK)
101 #define AO_PANIC_DELAY_SCALE (AO_SYSCLK / 12000000)
103 /* The stm32f413 implements only 4 bits of the priority fields? */
105 #if AO_NONMASK_INTERRUPT
106 #define AO_STM_NVIC_NONMASK_PRIORITY 0x00
108 /* Set the basepri register to this value to mask all
109 * non-maskable priorities
111 #define AO_STM_NVIC_BASEPRI_MASK 0x10
114 #define AO_STM_NVIC_HIGH_PRIORITY 0x40
115 #define AO_STM_NVIC_MED_PRIORITY 0x80
116 #define AO_STM_NVIC_LOW_PRIORITY 0xC0
117 #define AO_STM_NVIC_CLOCK_PRIORITY 0xf0
119 #define AO_GPIO_MODE_PULL_NONE 0
120 #define AO_GPIO_MODE_PULL_UP 4
121 #define AO_GPIO_MODE_PULL_DOWN 8
125 #define AO_SERIAL_SPEED_4800 4800
126 #define AO_SERIAL_SPEED_9600 9600
127 #define AO_SERIAL_SPEED_19200 19200
128 #define AO_SERIAL_SPEED_57600 57600
129 #define AO_SERIAL_SPEED_115200 115200
131 #endif /* _AO_ARCH_H_ */