1 /*
2 * Copyright (c) 2006-2022, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2022-09-20 liYony first version
9 */
10
11 #include <Arduino.h>
12 #include "pins_arduino.h"
13 #include <drv_gpio.h>
14
15 #define DBG_TAG "RTduino.pins_arduino"
16 #define DBG_LVL DBG_INFO
17 #include <rtdbg.h>
18
19 /*
20 * {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
21 * [] means optional
22 * Digital pins must NOT give the device name and channel.
23 * Analog pins MUST give the device name and channel(ADC, PWM or DAC).
24 * Arduino Pin must keep in sequence.
25 */
26 const pin_map_t pin_map_table[]=
27 {
28 {D0, GET_PIN(G,9), "uart3"}, /* Serial-Rx */
29 {D1, GET_PIN(G,14), "uart3"}, /* Serial-Tx */
30 {D2, GET_PIN(G,13)},
31 {D3, GET_PIN(A,1), "pwm2", 2}, /* PWM */
32 {D4, GET_PIN(G,12)},
33 {D5, GET_PIN(A,2), "pwm2", 3}, /* PWM */
34 {D6, GET_PIN(A,6), "pwm3", 1}, /* PWM */
35 {D7, GET_PIN(G,11)},
36 {D8, GET_PIN(G,10)},
37 {D9, GET_PIN(A,7), "pwm3", 2}, /* PWM */
38 {D10, GET_PIN(H,6), "pwm12", 1}, /* PWM */
39 {D11, GET_PIN(B,15), "pwm12", 2}, /* PWM */
40 {D12, GET_PIN(B,14)},
41 {D13, GET_PIN(D,3)}, /* LED_BUILTIN */
42 {D14, GET_PIN(B,9), "i2c1"}, /* I2C-SDA (Wire) */
43 {D15, GET_PIN(B,8), "i2c1"}, /* I2C-SCL (Wire) */
44 {D16, GET_PIN(A,0)}, /* user button */
45 {D17, GET_PIN(G,6)}, /* user LED */
46 {D18, GET_PIN(D,4)}, /* user LED */
47 {D19, GET_PIN(D,5)}, /* user LED */
48 {D20, GET_PIN(K,3)}, /* user LED */
49 {A0, GET_PIN(B,1), "adc1", 9}, /* ADC */
50 {A1, GET_PIN(C,2), "adc1", 12}, /* ADC */
51 {A2, GET_PIN(C,3), "adc1", 13}, /* ADC */
52 {A3, GET_PIN(C,4), "adc1", 14}, /* ADC */
53 {A4, GET_PIN(C,5), "adc1", 15}, /* ADC */
54 {A5, GET_PIN(A,4), "adc1", 4}, /* ADC */
55 {A6, RT_NULL, "adc1", RT_ADC_INTERN_CH_VREF}, /* ADC, On-Chip: internal reference voltage */
56 {A7, RT_NULL, "adc1", RT_ADC_INTERN_CH_TEMPER}, /* ADC, On-Chip: internal temperature sensor */
57 };
58
59 #ifdef RTDUINO_USING_SPI
switchToSPI(const char * bus_name)60 void switchToSPI(const char *bus_name)
61 {
62 GPIO_InitTypeDef GPIO_InitStruct = {0};
63
64 if(!rt_strcmp(bus_name, "spi2"))
65 {
66 __HAL_RCC_SPI2_CLK_ENABLE();
67
68 __HAL_RCC_GPIOD_CLK_ENABLE();
69 __HAL_RCC_GPIOB_CLK_ENABLE();
70
71 HAL_GPIO_DeInit(GPIOD, GPIO_PIN_3);
72 HAL_GPIO_DeInit(GPIOB, GPIO_PIN_14 | GPIO_PIN_15);
73
74 /**SPI2 GPIO Configuration
75 PD3 ------> SPI2_SCK
76 PB14 ------> SPI2_MISO
77 PB15 ------> SPI2_MOSI
78 */
79 GPIO_InitStruct.Pin = GPIO_PIN_3;
80 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
81 GPIO_InitStruct.Pull = GPIO_NOPULL;
82 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
83 GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
84 HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
85
86 GPIO_InitStruct.Pin = GPIO_PIN_14|GPIO_PIN_15;
87 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
88 GPIO_InitStruct.Pull = GPIO_NOPULL;
89 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
90 GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
91 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
92
93 LOG_I("D11, D12 and D13 will switch from PWM to SPI");
94 }
95 }
96 #endif /* RTDUINO_USING_SPI */
97