[rtduino][stm32] support SPI LCD

bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md

@@ -60,6 +60,10 @@ Hardware Drivers Config --->
 | 33 (D33)              | PC6       | 是       | I2C1-SCL，默认被RT-Thread的I2C设备框架i2c1总线接管        |
 | 34 (D34)              | PA2       |         | Serial2-Tx，默认被RT-Thread的UART设备框架uart2接管      |
 | 35 (D35)              | PA3       |         | Serial2-Rx，默认被RT-Thread的UART设备框架uart2接管      |
+| 36 (D36)              | PD7       | 是       | LCD 片选 CS                                    |
+| 37 (D37)              | PB6       | 是       | LCD 复位 RESET                                 |
+| 38 (D38)              | PB4       | 是       | LCD D/C 数据命令选择 即RW读写选择                       |
+| 39 (D39)              | PB7       | 是       | LCD 背光电源，PWM4-CH2，默认被RT-Thread的PWM设备框架pwm4接管 |
 | A0                    | PC2       | 是（但不建议） | ADC1-CH3，默认被RT-Thread的ADC设备框架adc1接管          |
 | A1                    | PC4       | 是（但不建议） | ADC1-CH13，默认被RT-Thread的ADC设备框架adc1接管         |
 | A2                    | --        |         | 芯片内部参考电压 ADC1-CH0，默认被RT-Thread的ADC设备框架adc1接管 |

bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/pins_arduino.c

@@ -57,6 +57,10 @@ const pin_map_t pin_map_table[]=
     {D33, GET_PIN(C,6), "i2c1"},        /* I2C-SCL (Wire) */
     {D34, GET_PIN(A,2), "uart2"},       /* Serial2-Tx */
     {D35, GET_PIN(A,3), "uart2"},       /* Serial2-Rx */
+    {D36, GET_PIN(D,7)},                /* BSP: LCD CS */
+    {D37, GET_PIN(B,6)},                /* BSP: LCD RESET */
+    {D38, GET_PIN(B,4)},                /* BSP: LCD RW/DC (data or command) */
+    {D39, GET_PIN(B,7), "pwm4", 2},     /* BSP: LCD POWER */
     {A0, GET_PIN(C,2), "adc1", 3},      /* ADC */
     {A1, GET_PIN(C,4), "adc1", 13},     /* ADC */
     {A2, RT_NULL, "adc1", RT_ADC_INTERN_CH_VREF},   /* ADC, On-Chip: internal reference voltage */

bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/pins_arduino.h

@@ -49,11 +49,15 @@
 #define D33       (33)
 #define D34       (34)
 #define D35       (35)
-#define A0        (36)
-#define A1        (37)
-#define A2        (38)
-#define A3        (39)
-#define DAC0      (40)
+#define D36       (36)
+#define D37       (37)
+#define D38       (38)
+#define D39       (39)
+#define A0        (40)
+#define A1        (41)
+#define A2        (42)
+#define A3        (43)
+#define DAC0      (44)
 
 #define F_CPU          80000000L  /* CPU:80MHz */
 
@@ -70,6 +74,20 @@
 #define SS      D28  /* Chip select pin of default spi */
 #define RTDUINO_DEFAULT_SPI_BUS_NAME      "spi2"
 
+#ifndef RTDUINO_DEFAULT_SPI_BUS_NAME
+/*
+ * SPI LCD ST7789 (spi3)
+ * LCD-SPI-SDA  PB5
+ * LCD-SPI-SCK  PB3
+ * LCD-SPI-CS   PD7
+ * LCD-POWER    PB7
+ * LCD-RESET    PB6
+ * LCD-WR/DC    PB4
+ */
+#define SS      D36  /* LCD-SPI-CS PD7 */
+#define RTDUINO_DEFAULT_SPI_BUS_NAME      "spi3" /* LCD SPI Bus */
+#endif
+
 /* Serial2 - PA2-TX  PA3-RX */
 #define RTDUINO_SERIAL2_DEVICE_NAME      "uart2"