2 * Copyright © 2013 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.
25 * LPC11U14 definitions and code fragments for AltOS
29 #define AO_STACK_SIZE 512
32 #define AO_GPIO_TYPE uint8_t
33 #define AO_PORT_TYPE uint32_t
35 #define AO_LED_TYPE AO_PORT_TYPE
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() arm_scb.aircr = ((0x05fa << 16) | \
49 #define ao_arch_nop() asm("nop")
51 #define ao_arch_interrupt(n) /* nothing */
57 #define AO_ROMCONFIG_SYMBOL __attribute__((section(".init.1"))) const
58 #define AO_USBCONFIG_SYMBOL __attribute__((section(".init.2"))) const
60 #define ao_arch_block_interrupts() asm("cpsid i")
61 #define ao_arch_release_interrupts() asm("cpsie i")
64 * For now, we're running at a weird frequency
68 #define AO_PLLSRC AO_HSE
70 #define AO_PLLSRC STM_HSI_FREQ
73 #define AO_PLLVCO (AO_PLLSRC * AO_PLLMUL)
74 #define AO_SYSCLK (AO_PLLVCO / AO_PLLDIV)
75 #define AO_HCLK (AO_SYSCLK / AO_AHB_PRESCALER)
76 #define AO_PCLK1 (AO_HCLK / AO_APB1_PRESCALER)
77 #define AO_PCLK2 (AO_HCLK / AO_APB2_PRESCALER)
79 #if AO_APB1_PRESCALER == 1
80 #define AO_TIM23467_CLK AO_PCLK1
82 #define AO_TIM23467_CLK (2 * AO_PCLK1)
85 #if AO_APB2_PRESCALER == 1
86 #define AO_TIM91011_CLK AO_PCLK2
88 #define AO_TIM91011_CLK (2 * AO_PCLK2)
91 #define AO_LPC_NVIC_HIGH_PRIORITY 0
92 #define AO_LPC_NVIC_CLOCK_PRIORITY 1
93 #define AO_LPC_NVIC_MED_PRIORITY 2
94 #define AO_LPC_NVIC_LOW_PRIORITY 3
99 #define AO_USB_OUT_EP 2
100 #define AO_USB_IN_EP 3
103 ao_serial_init(void);
105 /* SPI definitions */
107 #define _AO_SPI_SPEED_12MHz 4
108 #define _AO_SPI_SPEED_8MHz 6
109 #define _AO_SPI_SPEED_6MHz 8
110 #define _AO_SPI_SPEED_4MHz 12
111 #define _AO_SPI_SPEED_2MHz 24
112 #define _AO_SPI_SPEED_1MHz 48
113 #define _AO_SPI_SPEED_500kHz 96
114 #define _AO_SPI_SPEED_250kHz 192
115 #define _AO_SPI_SPEED_125kHz 384
116 #define _AO_SPI_SPEED_62500Hz 768
118 static inline uint32_t
119 ao_spi_speed(uint32_t hz)
121 if (hz >= 4000000) return _AO_SPI_SPEED_4MHz;
122 if (hz >= 2000000) return _AO_SPI_SPEED_2MHz;
123 if (hz >= 1000000) return _AO_SPI_SPEED_1MHz;
124 if (hz >= 500000) return _AO_SPI_SPEED_500kHz;
125 if (hz >= 250000) return _AO_SPI_SPEED_250kHz;
126 if (hz >= 125000) return _AO_SPI_SPEED_125kHz;
127 return _AO_SPI_SPEED_62500Hz;
130 #define AO_BOOT_APPLICATION_BASE ((uint32_t *) 0x00001000)
131 #define AO_BOOT_APPLICATION_BOUND ((uint32_t *) (0x00000000 + 32 * 1024))
132 #define AO_BOOT_LOADER_BASE ((uint32_t *) 0x00000000)
133 #define HAS_BOOT_LOADER 1
135 /* ADC definitions */
137 #define AO_ADC_MAX 32767
139 #endif /* _AO_ARCH_H_ */