speed up samd21 by not erasing (we auto-erase). add SPI1 for TFT connection

Author: ladyada

platform.txt

@@ -117,7 +117,7 @@ tools.bossac.cmd=bossac
 
 tools.bossac.upload.params.verbose=-i -d
 tools.bossac.upload.params.quiet=
-tools.bossac.upload.pattern="{path}/{cmd}" {upload.verbose} --port={serial.port.file} -U {upload.native_usb} -i -e -w -v "{build.path}/{build.project_name}.bin" -R
+tools.bossac.upload.pattern="{path}/{cmd}" {upload.verbose} --port={serial.port.file} -U {upload.native_usb} -i -w -v "{build.path}/{build.project_name}.bin" -R
 
 tools.bossac_remote.upload.pattern=/usr/bin/run-bossac {upload.verbose} --port=ttyATH0 -U {upload.native_usb} -e -w -v /tmp/sketch.bin -R
 

variants/circuitplay/variant.cpp

@@ -94,6 +94,12 @@ const PinDescription g_APinDescription[]=
   { PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM
   { PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP
 
+  // 39-42 External SPI
+  { PORTB,  2, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },                    // GPIO D2 / A5 / SDA
+  { PORTB,  3, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },                    // GPIO D3 / A4 / SCL
+  { PORTB, 10, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_10 },                   // Not available
+  { PORTB, 11, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_11 },                   // Not available
+
 } ;
 
 const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;

variants/circuitplay/variant.h

@@ -111,7 +111,7 @@ static const uint8_t DAC0 = PIN_DAC0;
 /*
  * SPI Interfaces
  */
-#define SPI_INTERFACES_COUNT 1
+#define SPI_INTERFACES_COUNT 2
 
 #define PIN_SPI_MISO         (30u)
 #define PIN_SPI_SCK          (31u)
@@ -126,6 +126,19 @@ static const uint8_t MISO = PIN_SPI_MISO ;
 static const uint8_t SCK  = PIN_SPI_SCK ;
 
 
+// Extra hardware SPI for Gizmo
+#define PIN_SPI1_SCK          (40u)
+#define PIN_SPI1_MOSI         (39u)
+#define PIN_SPI1_MISO         (41u)
+#define PERIPH_SPI1           sercom5
+#define PAD_SPI1_TX           SPI_PAD_0_SCK_1  // MOSI / SCK
+#define PAD_SPI1_RX           SERCOM_RX_PAD_2  // MISO not avail
+
+static const uint8_t SS1	  = 42 ;
+static const uint8_t MOSI1 = PIN_SPI_MOSI ;
+static const uint8_t MISO1 = PIN_SPI_MISO ;
+static const uint8_t SCK1  = PIN_SPI_SCK ;
+
 /*
  * Wire Interfaces
  */