1 /*
2 * Copyright (c) 2006-2024, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2024-01-25 ShichengChu first version
9 */
10
11 #include <Arduino.h>
12 #include <board.h>
13 #include "pins_arduino.h"
14 #include <pico/stdlib.h>
15 #include <hardware/spi.h>
16 #include <hardware/gpio.h>
17 #include <pico/binary_info.h>
18
19 #define DBG_TAG "RTduino.pins_arduino"
20 #define DBG_LVL DBG_INFO
21 #include <rtdbg.h>
22
23 /*
24 * {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
25 * [] means optional
26 * Digital pins must NOT give the device name and channel.
27 * Analog pins MUST give the device name and channel(ADC, PWM or DAC).
28 * Arduino Pin must keep in sequence.
29 */
30 const pin_map_t pin_map_table[]=
31 {
32 {D0, 0, "uart0"}, /* Serial-TX */
33 {D1, 1, "uart0"}, /* Serial-RX */
34 {D2, 2},
35 {D3, 3},
36 {D4, 4, "i2c0"}, /* I2C-SDA (Wire) */
37 {D5, 5, "i2c0"}, /* I2C-SCL (Wire) */
38 {D6, 6},
39 {D7, 7},
40 {D8, 8, "uart1"}, /* Serial2-TX */
41 {D9, 9, "uart1"}, /* Serial2-RX */
42 {D10, 10, "pwm5", 0}, /* PWM */
43 {D11, 11, "pwm5", 1}, /* PWM */
44 {D12, 12, "pwm6", 0}, /* PWM */
45 {D13, 13, "pwm6", 1}, /* PWM */
46 {D14, 14, "pwm7", 0}, /* PWM */
47 {D15, 15, "pwm7", 1}, /* PWM */
48 {D16, 16, "pwm0", 0}, /* PWM */
49 {D17, 17, "pwm0", 1}, /* PWM */
50 {D18, 18, "pwm1", 0}, /* PWM */
51 {D19, 19, "pwm1", 1}, /* PWM */
52 {D20, 20, "pwm2", 0}, /* PWM */
53 {D21, 21, "pwm2", 1}, /* PWM */
54 {D22, 22, "pwm3", 0}, /* PWM */
55 {D23, 23, "pwm3", 1}, /* PWM */
56 {D24, 24, "pwm4", 0}, /* PWM */
57 {D25, 25, "pwm4", 1}, /* LED_BUILTIN */
58 {A0, 26, "adc0", 0}, /* ADC */
59 {A1, 27, "adc1", 1}, /* ADC */
60 {A2, 28, "adc2", 2}, /* ADC */
61 };
62
63 #ifdef RTDUINO_USING_SPI
switchToSPI(const char * bus_name)64 void switchToSPI(const char *bus_name)
65 {
66 if(!rt_strcmp(bus_name, "spi0"))
67 {
68 /**SPI0 GPIO Configuration
69 18u ------> SPI0_SCK
70 16u ------> SPI0_MISO
71 19u ------> SPI0_MOSI
72 17u ------> SPI0_CS
73 */
74 gpio_set_function(BSP_SPI0_SCK_PIN, GPIO_FUNC_SPI);
75 gpio_set_function(BSP_SPI0_MISO_PIN, GPIO_FUNC_SPI);
76 gpio_set_function(BSP_SPI0_MOSI_PIN, GPIO_FUNC_SPI);
77 gpio_init(BSP_SPI0_CS_PIN);
78 // Make the SPI pins available to picotool
79 bi_decl(bi_3pins_with_func(BSP_SPI0_MISO_PIN, BSP_SPI0_MOSI_PIN, BSP_SPI0_SCK_PIN, GPIO_FUNC_SPI));
80 // Make the CS pin available to picotool
81 bi_decl(bi_1pin_with_name(BSP_SPI0_CS_PIN, "SPI CS"));
82
83 LOG_I("D16, D17, D18 and D19 will switch from PWM to SPI");
84 }
85 }
86 #endif /* RTDUINO_USING_SPI */
87