added basic code

1 files changed, 139 insertions, 0 deletions

diff --git a/arduino/cores/nRF5/wiring_digital.c b/arduino/cores/nRF5/wiring_digital.c
new file mode 100755
index 0000000..ba435c4
--- /dev/null
+++ b/arduino/cores/nRF5/wiring_digital.c
@@ -0,0 +1,139 @@
+/*
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "nrf.h"
+
+#include "Arduino.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void pinMode( uint32_t ulPin, uint32_t ulMode )
+{
+  if (ulPin >= PINS_COUNT) {
+    return;
+  }
+
+  ulPin = g_ADigitalPinMap[ulPin];
+
+  NRF_GPIO_Type * port = nrf_gpio_pin_port_decode(&ulPin);
+
+  // Set pin mode according to chapter '22.6.3 I/O Pin Configuration'
+  switch ( ulMode )
+  {
+    case INPUT:
+      // Set pin to input mode
+      port->PIN_CNF[ulPin] = ((uint32_t)GPIO_PIN_CNF_DIR_Input        << GPIO_PIN_CNF_DIR_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_INPUT_Connect    << GPIO_PIN_CNF_INPUT_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_PULL_Disabled    << GPIO_PIN_CNF_PULL_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_DRIVE_S0S1       << GPIO_PIN_CNF_DRIVE_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_SENSE_Disabled   << GPIO_PIN_CNF_SENSE_Pos);
+    break;
+
+    case INPUT_PULLUP:
+      // Set pin to input mode with pull-up resistor enabled
+      port->PIN_CNF[ulPin] = ((uint32_t)GPIO_PIN_CNF_DIR_Input        << GPIO_PIN_CNF_DIR_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_INPUT_Connect    << GPIO_PIN_CNF_INPUT_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_PULL_Pullup      << GPIO_PIN_CNF_PULL_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_DRIVE_S0S1       << GPIO_PIN_CNF_DRIVE_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_SENSE_Disabled   << GPIO_PIN_CNF_SENSE_Pos);
+    break;
+
+    case INPUT_PULLDOWN:
+      // Set pin to input mode with pull-down resistor enabled
+      port->PIN_CNF[ulPin] = ((uint32_t)GPIO_PIN_CNF_DIR_Input        << GPIO_PIN_CNF_DIR_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_INPUT_Connect    << GPIO_PIN_CNF_INPUT_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_PULL_Pulldown    << GPIO_PIN_CNF_PULL_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_DRIVE_S0S1       << GPIO_PIN_CNF_DRIVE_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_SENSE_Disabled   << GPIO_PIN_CNF_SENSE_Pos);
+    break;
+
+    case OUTPUT:
+      // Set pin to output mode
+      port->PIN_CNF[ulPin] = ((uint32_t)GPIO_PIN_CNF_DIR_Output       << GPIO_PIN_CNF_DIR_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_PULL_Disabled    << GPIO_PIN_CNF_PULL_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_DRIVE_S0S1       << GPIO_PIN_CNF_DRIVE_Pos)
+                           | ((uint32_t)GPIO_PIN_CNF_SENSE_Disabled   << GPIO_PIN_CNF_SENSE_Pos);
+    break;
+
+    default:
+      // do nothing
+    break ;
+  }
+}
+
+void digitalWrite( uint32_t ulPin, uint32_t ulVal )
+{
+  if (ulPin >= PINS_COUNT) {
+    return;
+  }
+
+  ulPin = g_ADigitalPinMap[ulPin];
+
+  NRF_GPIO_Type * port = nrf_gpio_pin_port_decode(&ulPin);
+
+  switch ( ulVal )
+  {
+    case LOW:
+      port->OUTCLR = (1UL << ulPin);
+    break ;
+
+    default:
+      port->OUTSET = (1UL << ulPin);
+    break ;
+  }
+}
+
+int digitalRead( uint32_t ulPin )
+{
+  if (ulPin >= PINS_COUNT) {
+    return 0;
+  }
+
+  ulPin = g_ADigitalPinMap[ulPin];
+
+  NRF_GPIO_Type * port = nrf_gpio_pin_port_decode(&ulPin);
+  uint32_t const bm = (1UL << ulPin);
+
+  // Return bit in OUT or IN depending on configured direction
+  return (bm  & ((port->DIR & bm) ? port->OUT : port->IN)) ? 1 : 0;
+}
+
+void digitalToggle( uint32_t pin )
+{
+  int state = 1 - digitalRead(pin);
+  digitalWrite(pin, state);
+}
+
+void ledOn(uint32_t pin)
+{
+  digitalWrite(pin, LED_STATE_ON);
+}
+
+void ledOff(uint32_t pin)
+{
+  digitalWrite(pin, 1-LED_STATE_ON);
+}
+
+
+#ifdef __cplusplus
+}
+#endif