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periph_conf.h
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1/*
2 * Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
3 * 2015 FreshTemp, LLC.
4 * 2014-2016 Freie Universität Berlin
5 *
6 * This file is subject to the terms and conditions of the GNU Lesser
7 * General Public License v2.1. See the file LICENSE in the top level
8 * directory for more details.
9 */
10
23#ifndef PERIPH_CONF_H
24#define PERIPH_CONF_H
25
26#include "periph_cpu.h"
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
35#define CLOCK_CORECLOCK (48000000U)
36
41#define USE_VREG_BUCK (1)
42
47static const tc32_conf_t timer_config[] = {
48 { /* Timer 0 - System Clock */
49 .dev = TC0,
50 .irq = TC0_IRQn,
51 .mclk = &MCLK->APBCMASK.reg,
52 .mclk_mask = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
53 .gclk_id = TC0_GCLK_ID,
54 .gclk_src = SAM0_GCLK_TIMER,
55 .flags = TC_CTRLA_MODE_COUNT32,
56 }
57};
58
59/* Timer 0 configuration */
60#define TIMER_0_CHANNELS 2
61#define TIMER_0_ISR isr_tc0
62#define TIMER_NUMOF ARRAY_SIZE(timer_config)
69static const uart_conf_t uart_config[] = {
70 { /* Virtual COM Port */
71 .dev = &SERCOM3->USART,
72 .rx_pin = GPIO_PIN(PA,23),
73 .tx_pin = GPIO_PIN(PA,22),
74#ifdef MODULE_PERIPH_UART_HW_FC
75 .rts_pin = GPIO_UNDEF,
76 .cts_pin = GPIO_UNDEF,
77#endif
78 .mux = GPIO_MUX_C,
79 .rx_pad = UART_PAD_RX_1,
80 .tx_pad = UART_PAD_TX_0,
81 .flags = UART_FLAG_NONE,
82 .gclk_src = SAM0_GCLK_MAIN,
83 },
84 { /* EXT1 header */
85 .dev = &SERCOM4->USART,
86 .rx_pin = GPIO_PIN(PB, 9),
87 .tx_pin = GPIO_PIN(PB, 8),
88#ifdef MODULE_PERIPH_UART_HW_FC
89 .rts_pin = GPIO_UNDEF,
90 .cts_pin = GPIO_UNDEF,
91#endif
92 .mux = GPIO_MUX_D,
93 .rx_pad = UART_PAD_RX_1,
94 .tx_pad = UART_PAD_TX_0,
95 .flags = UART_FLAG_NONE,
96 .gclk_src = SAM0_GCLK_MAIN,
97 },
98 { /* EXT2 header */
99 .dev = &SERCOM1->USART,
100 .rx_pin = GPIO_PIN(PA, 19),
101 .tx_pin = GPIO_PIN(PA, 18),
102#ifdef MODULE_PERIPH_UART_HW_FC
103 .rts_pin = GPIO_UNDEF,
104 .cts_pin = GPIO_UNDEF,
105#endif
106 .mux = GPIO_MUX_C,
107 .rx_pad = UART_PAD_RX_3,
108 .tx_pad = UART_PAD_TX_2,
109 .flags = UART_FLAG_NONE,
110 .gclk_src = SAM0_GCLK_MAIN,
111 }
112};
113
114/* interrupt function name mapping */
115#define UART_0_ISR isr_sercom3
116#define UART_1_ISR isr_sercom4
117#define UART_2_ISR isr_sercom1
118
119#define UART_NUMOF ARRAY_SIZE(uart_config)
126/* PWM0 channels */
127static const pwm_conf_chan_t pwm_chan0_config[] = {
128 /* GPIO pin, MUX value, TCC channel */
129 {
130 .pin = GPIO_PIN(PB, 10),
131 .mux = GPIO_MUX_F,
132 .chan = 4
133 },
134};
135
136/* PWM device configuration */
137static const pwm_conf_t pwm_config[] = {
138 {
139 .tim = TCC_CONFIG(TCC0),
140 .chan = pwm_chan0_config,
141 .chan_numof = ARRAY_SIZE(pwm_chan0_config),
142 .gclk_src = SAM0_GCLK_TIMER,
143 },
144};
145
146/* number of devices that are actually defined */
147#define PWM_NUMOF ARRAY_SIZE(pwm_config)
154static const spi_conf_t spi_config[] = {
155 { /* EXT1 header */
156 .dev = &(SERCOM0->SPI),
157 .miso_pin = GPIO_PIN(PA, 4),
158 .mosi_pin = GPIO_PIN(PA, 6),
159 .clk_pin = GPIO_PIN(PA, 7),
160 .miso_mux = GPIO_MUX_D,
161 .mosi_mux = GPIO_MUX_D,
162 .clk_mux = GPIO_MUX_D,
163 .miso_pad = SPI_PAD_MISO_0,
164 .mosi_pad = SPI_PAD_MOSI_2_SCK_3,
165 .gclk_src = SAM0_GCLK_MAIN,
166#ifdef MODULE_PERIPH_DMA
167 .tx_trigger = SERCOM0_DMAC_ID_TX,
168 .rx_trigger = SERCOM0_DMAC_ID_RX,
169#endif
170 },
171 { /* EXT2, EXT3 header */
172 .dev = &(SERCOM5->SPI),
173 .miso_pin = GPIO_PIN(PB, 16),
174 .mosi_pin = GPIO_PIN(PB, 22),
175 .clk_pin = GPIO_PIN(PB, 23),
176 .miso_mux = GPIO_MUX_C,
177 .mosi_mux = GPIO_MUX_D,
178 .clk_mux = GPIO_MUX_D,
179 .miso_pad = SPI_PAD_MISO_0,
180 .mosi_pad = SPI_PAD_MOSI_2_SCK_3,
181 .gclk_src = SAM0_GCLK_MAIN,
182#ifdef MODULE_PERIPH_DMA
183 /* no DMA on SERCOM5 */
184 .tx_trigger = DMA_TRIGGER_DISABLED,
185 .rx_trigger = DMA_TRIGGER_DISABLED,
186#endif
187 }
188};
189
190#define SPI_NUMOF ARRAY_SIZE(spi_config)
197static const i2c_conf_t i2c_config[] = {
198 {
199 .dev = &(SERCOM2->I2CM),
200 .speed = I2C_SPEED_NORMAL,
201 .scl_pin = GPIO_PIN(PA, 9),
202 .sda_pin = GPIO_PIN(PA, 8),
203 .mux = GPIO_MUX_D,
204 .gclk_src = SAM0_GCLK_MAIN,
205 .flags = I2C_FLAG_NONE
206 }
207};
208
209#define I2C_NUMOF ARRAY_SIZE(i2c_config)
216#define EXTERNAL_OSC32_SOURCE 1
217#define INTERNAL_OSC32_SOURCE 0
218#define ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE 0
225#ifndef RTT_FREQUENCY
226#define RTT_FREQUENCY (32768U)
227#endif
235/* ADC Default values */
236#define ADC_PRESCALER ADC_CTRLB_PRESCALER_DIV256
237
238#define ADC_NEG_INPUT ADC_INPUTCTRL_MUXNEG(0x18u)
239#define ADC_REF_DEFAULT ADC_REFCTRL_REFSEL_INTVCC2
240
241static const adc_conf_chan_t adc_channels[] = {
242 /* port, pin, muxpos */
244 { .inputctrl = ADC_INPUTCTRL_MUXPOS_PA11 },
245 { .inputctrl = ADC_INPUTCTRL_MUXPOS_PA02 }
246};
247
248#define ADC_NUMOF ARRAY_SIZE(adc_channels)
255 /* Must not exceed 12 MHz */
256#define DAC_CLOCK SAM0_GCLK_TIMER
257 /* use Vcc as reference voltage */
258#define DAC_VREF DAC_CTRLB_REFSEL_VDDANA
265static const sam0_common_usb_config_t sam_usbdev_config[] = {
266 {
267 .dm = GPIO_PIN(PA, 24),
268 .dp = GPIO_PIN(PA, 25),
269 .d_mux = GPIO_MUX_G,
270 .device = &USB->DEVICE,
271 .gclk_src = SAM0_GCLK_48MHZ,
272 }
273};
276#ifdef __cplusplus
277}
278#endif
279
280#endif /* PERIPH_CONF_H */
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition periph_cpu.h:46
#define GPIO_UNDEF
Definition of a fitting UNDEF value.
@ I2C_SPEED_NORMAL
normal mode: ~100 kbit/s
Definition periph_cpu.h:278
#define ARRAY_SIZE(a)
Calculate the number of elements in a static array.
Definition container.h:83
@ UART_PAD_RX_1
select pad 1
@ UART_PAD_RX_3
select pad 3
@ PB
port B
@ PA
port A
@ I2C_FLAG_NONE
No flags set.
@ SPI_PAD_MISO_0
use pad 0 for MISO line
#define DMA_TRIGGER_DISABLED
Indicates that the peripheral doesn't utilize the DMA controller.
@ UART_FLAG_NONE
No flags set.
@ UART_PAD_TX_0
select pad 0
@ UART_PAD_TX_2
select pad 2
#define TCC_CONFIG(tim)
Static initializer for TCC timer configuration.
@ GPIO_MUX_D
select peripheral function D
@ GPIO_MUX_G
select peripheral function G
@ GPIO_MUX_C
select peripheral function C
@ GPIO_MUX_F
select peripheral function F
@ SPI_PAD_MOSI_2_SCK_3
use pad 2 for MOSI, pad 3 for SCK
#define ADC_INPUTCTRL_MUXPOS_PA10
Alias for PIN18.
Definition periph_cpu.h:137
#define ADC_INPUTCTRL_MUXPOS_PA11
Alias for PIN19.
Definition periph_cpu.h:138
#define ADC_INPUTCTRL_MUXPOS_PA02
ADC pin aliases.
Definition periph_cpu.h:119
#define SAM0_GCLK_MAIN
120 MHz main clock
Definition periph_cpu.h:74
#define SAM0_GCLK_TIMER
4-8 MHz clock for xTimer
Definition periph_cpu.h:79
ADC Channel Configuration.
uint32_t inputctrl
ADC channel pin multiplexer value
I2C configuration structure.
Definition periph_cpu.h:299
TWI_t * dev
Pointer to hardware module registers.
Definition periph_cpu.h:300
PWM channel configuration data structure.
gpio_t pin
GPIO pin.
PWM device configuration.
tc_tcc_cfg_t tim
timer configuration
USB peripheral parameters.
SPI device configuration.
Definition periph_cpu.h:337
SPI_t * dev
pointer to the used SPI device
Definition periph_cpu.h:338
Timer device configuration.
Tc * dev
pointer to the used Timer device
UART device configuration.
Definition periph_cpu.h:218
USART_t * dev
pointer to the used UART device
Definition periph_cpu.h:219