2 * Copyright © 2012 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.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 * STM32L0 definitions and code fragments for AltOS
30 #define AO_STACK_SIZE 256
35 #define AO_PORT_TYPE uint16_t
37 /* Various definitions to make GCC look more like SDCC */
39 #define ao_arch_naked_declare __attribute__((naked))
40 #define ao_arch_naked_define
41 #define __interrupt(n)
44 #define ao_arch_reboot() \
45 (stm_scb.aircr = ((STM_SCB_AIRCR_VECTKEY_KEY << STM_SCB_AIRCR_VECTKEY) | \
46 (1 << STM_SCB_AIRCR_SYSRESETREQ)))
48 #define ao_arch_nop() asm("nop")
50 #define ao_arch_interrupt(n) /* nothing */
56 #define AO_ROMCONFIG_SYMBOL __attribute__((section(".romconfig"))) const
60 #define AO_PLLSRC AO_HSE
62 #define AO_PLLSRC STM_HSI_FREQ
65 #define AO_PLLVCO (AO_PLLSRC * AO_PLLMUL)
66 #define AO_SYSCLK (AO_PLLVCO / AO_PLLDIV)
69 #define AO_HCLK (AO_SYSCLK / AO_AHB_PRESCALER)
70 #define AO_FCLK AO_HCLK
71 #define AO_PCLK1 (AO_HCLK / AO_APB1_PRESCALER)
72 #define AO_PCLK2 (AO_HCLK / AO_APB2_PRESCALER)
73 #define AO_SYSTICK (AO_HCLK / 8)
75 #if AO_APB1_PRESCALER == 1
76 #define AO_TIM23467_CLK AO_PCLK1
78 #define AO_TIM23467_CLK (2 * AO_PCLK1)
81 #if AO_APB2_PRESCALER == 1
82 #define AO_TIM91011_CLK AO_PCLK2
84 #define AO_TIM91011_CLK (2 * AO_PCLK2)
87 /* The stm32l implements only 4 bits of the priority fields */
89 #if AO_NONMASK_INTERRUPT
90 #define AO_STM_NVIC_NONMASK_PRIORITY 0x00
92 /* Set the basepri register to this value to mask all
93 * non-maskable priorities
95 #define AO_STM_NVIC_BASEPRI_MASK 0x10
98 #define AO_STM_NVIC_HIGH_PRIORITY 0x40
99 #define AO_STM_NVIC_MED_PRIORITY 0x80
100 #define AO_STM_NVIC_LOW_PRIORITY 0xC0
101 #define AO_STM_NVIC_CLOCK_PRIORITY 0xf0
103 void ao_lcd_stm_init(void);
105 void ao_lcd_font_init(void);
107 void ao_lcd_font_string(char *s);
109 extern const uint32_t ao_radio_cal;
114 /* ADC maximum reported value */
115 #define AO_ADC_MAX 4095
117 #define HAS_BOOT_LOADER 0
120 #define AO_LED_TYPE uint16_t
126 #endif /* _AO_ARCH_H_ */