[MKRWAN] Enable second optional SPI for dumb mode

Author: facchinm

variants/mkrlora1300/variant.cpp

@@ -143,7 +143,6 @@ const PinDescription g_APinDescription[] = {
  | 35         |                  |  PA01  | XOUT32          |   01   |     |     |     |     |         |   1/01  | TCC2/1 |        |          |          |
  +------------+------------------+--------+-----------------+--------+-----+-----+-----+-----+---------+---------+--------+--------+----------+----------+
  */
-                                                                                                                                               // DIPO=3 DOPO=0
   { PORTA, 12, PIO_SERCOM_ALT,  (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // MOSI: SERCOM4/PAD[0]
   { PORTA, 13, PIO_DIGITAL,     (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SCK:  SERCOM4/PAD[1]
   { PORTA, 14, PIO_DIGITAL,     (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SS:   as GPIO
@@ -156,6 +155,10 @@ const PinDescription g_APinDescription[] = {
 
   { PORTA,  0, PIO_DIGITAL,    (PIN_ATTR_NONE                                ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
   { PORTA,  1, PIO_DIGITAL,    (PIN_ATTR_NONE                                ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
+
+  { PORTA, 12, PIO_SERCOM,      (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // MOSI: SERCOM4/PAD[0]
+  { PORTA, 13, PIO_SERCOM,      (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SCK:  SERCOM4/PAD[1]
+  { PORTA, 15, PIO_SERCOM,      (PIN_ATTR_NONE                               ), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // MISO: SERCOM4/PAD[3]
 };
 
 const void* g_apTCInstances[TCC_INST_NUM + TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 };
@@ -182,4 +185,4 @@ Uart Serial2(&sercom4, PIN_SERIAL2_RX, PIN_SERIAL2_TX, PAD_SERIAL2_RX, PAD_SERIA
 void SERCOM4_Handler()
 {
   Serial2.IrqHandler();
-}
+}

variants/mkrlora1300/variant.h

@@ -92,7 +92,7 @@ static const uint8_t A6  = PIN_A6;
 
 // SPI Interfaces
 // --------------
-#define SPI_INTERFACES_COUNT 1
+#define SPI_INTERFACES_COUNT 2
 
 // SPI
 #define PIN_SPI_MISO  (10u)
@@ -108,6 +108,18 @@ static const uint8_t MOSI = PIN_SPI_MOSI;
 static const uint8_t MISO = PIN_SPI_MISO;
 static const uint8_t SCK  = PIN_SPI_SCK;
 
+// SPI1
+#define PIN_SPI1_MISO    (38u)
+#define PIN_SPI1_MOSI    (36u)
+#define PIN_SPI1_SCK     (37u)
+#define LORA_IRQ_DUMB    (28u)
+#define PERIPH_SPI1   sercom2
+#define PAD_SPI1_TX   SPI_PAD_0_SCK_1
+#define PAD_SPI1_RX   SERCOM_RX_PAD_3
+static const uint8_t MOSI1 = PIN_SPI1_MOSI;
+static const uint8_t MISO1 = PIN_SPI1_MISO;
+static const uint8_t SCK1  = PIN_SPI1_SCK;
+
 // Wire Interfaces
 // ---------------
 #define WIRE_INTERFACES_COUNT 1