NXP: Add support for MIMXRT1050_EVK

Signed-off-by: Mahesh Mahadevan <[email protected]>

Author: mmahadevan108

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/PeripheralPins.h

@@ -0,0 +1,50 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+#ifndef MBED_PERIPHERALPINS_H
+#define MBED_PERIPHERALPINS_H
+
+#include "pinmap.h"
+#include "PeripheralNames.h"
+
+/************RTC***************/
+extern const PinMap PinMap_RTC[];
+
+/************ADC***************/
+extern const PinMap PinMap_ADC[];
+
+/************DAC***************/
+extern const PinMap PinMap_DAC[];
+
+/************I2C***************/
+extern const PinMap PinMap_I2C_SDA[];
+extern const PinMap PinMap_I2C_SCL[];
+
+/************UART***************/
+extern const PinMap PinMap_UART_TX[];
+extern const PinMap PinMap_UART_RX[];
+extern const PinMap PinMap_UART_CTS[];
+extern const PinMap PinMap_UART_RTS[];
+/************SPI***************/
+extern const PinMap PinMap_SPI_SCLK[];
+extern const PinMap PinMap_SPI_MOSI[];
+extern const PinMap PinMap_SPI_MISO[];
+extern const PinMap PinMap_SPI_SSEL[];
+
+/************PWM***************/
+extern const PinMap PinMap_PWM[];
+
+#endif

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/PortNames.h

@@ -0,0 +1,35 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MBED_PORTNAMES_H
+#define MBED_PORTNAMES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    Gpio1 = 1,
+    Gpio2 = 2,
+    Gpio3 = 3,
+    Gpio4 = 4,
+    Gpio5 = 5
+} PortName;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/analogin_api.c

@@ -0,0 +1,77 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "mbed_assert.h"
+#include "analogin_api.h"
+
+#if DEVICE_ANALOGIN
+
+#include "cmsis.h"
+#include "pinmap.h"
+#include "PeripheralNames.h"
+#include "fsl_adc.h"
+#include "PeripheralPins.h"
+
+/* Array of ADC peripheral base address. */
+static ADC_Type *const adc_addrs[] = ADC_BASE_PTRS;
+
+void analogin_init(analogin_t *obj, PinName pin)
+{
+    obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC);
+    MBED_ASSERT(obj->adc != (ADCName)NC);
+
+    uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT;
+    adc_config_t adc_config;
+
+    ADC_GetDefaultConfig(&adc_config);
+    ADC_Init(adc_addrs[instance], &adc_config);
+#if !(defined(FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE) && FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE)
+    ADC_EnableHardwareTrigger(adc_addrs[instance], false);
+#endif
+    ADC_DoAutoCalibration(adc_addrs[instance]);
+}
+
+uint16_t analogin_read_u16(analogin_t *obj)
+{
+    uint32_t instance = obj->adc >> ADC_INSTANCE_SHIFT;
+    adc_channel_config_t adc_channel_config;
+
+    adc_channel_config.channelNumber = obj->adc & 0xF;
+    adc_channel_config.enableInterruptOnConversionCompleted = false;
+
+    /*
+      When in software trigger mode, each conversion would be launched once calling the "ADC_ChannelConfigure()"
+      function, which works like writing a conversion command and executing it. For another channel's conversion,
+      just to change the "channelNumber" field in channel configuration structure, and call the function
+      "ADC_ChannelConfigure()"" again.
+      Also, the "enableInterruptOnConversionCompleted" inside the channel configuration structure is a parameter
+      for the conversion command. It takes affect just for the current conversion. If the interrupt is still required
+      for the following conversion, it is necessary to assert the "enableInterruptOnConversionCompleted" every
+      time for each command.
+    */
+    ADC_SetChannelConfig(adc_addrs[instance], 0, &adc_channel_config);
+    while (0U == ADC_GetChannelStatusFlags(adc_addrs[instance], 0))
+    {
+    }
+    return ADC_GetChannelConversionValue(adc_addrs[instance], 0);
+}
+
+float analogin_read(analogin_t *obj)
+{
+    uint16_t value = analogin_read_u16(obj);
+    return (float)value * (1.0f / (float)0xFFFF);
+}
+
+#endif

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_IMX/gpio_api.c

@@ -0,0 +1,83 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "mbed_assert.h"
+#include "gpio_api.h"
+#include "pinmap.h"
+#include "fsl_gpio.h"
+
+static GPIO_Type * const gpio_addrs[] = GPIO_BASE_PTRS;
+
+uint32_t gpio_set(PinName pin)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+    uint32_t pin_num = pin & 0xFF;
+
+    pin_function(pin, GPIO_MUX_PORT);
+    return 1 << pin_num;
+}
+
+void gpio_init(gpio_t *obj, PinName pin)
+{
+    clock_ip_name_t gpio_clocks[] = GPIO_CLOCKS;
+
+    CLOCK_EnableClock(gpio_clocks[pin >> GPIO_PORT_SHIFT]);
+
+    obj->pin = pin;
+    if (pin == (PinName)NC)
+        return;
+
+    pin_function(pin, GPIO_MUX_PORT);
+}
+
+void gpio_mode(gpio_t *obj, PinMode mode)
+{
+    pin_mode(obj->pin, mode);
+}
+
+void gpio_dir(gpio_t *obj, PinDirection direction)
+{
+    MBED_ASSERT(obj->pin != (PinName)NC);
+    uint32_t port = (obj->pin >> GPIO_PORT_SHIFT) & 0xF;
+    uint32_t gpio_pin_num = obj->pin & 0xFF;
+    GPIO_Type *base = gpio_addrs[port];
+
+    switch (direction) {
+        case PIN_INPUT:
+            base->GDIR &= ~(1U << gpio_pin_num);
+            break;
+        case PIN_OUTPUT:
+            base->GDIR |= (1U << gpio_pin_num);
+            break;
+    }
+}
+
+void gpio_write(gpio_t *obj, int value)
+{
+    MBED_ASSERT(obj->pin != (PinName)NC);
+    uint32_t port = (obj->pin >> GPIO_PORT_SHIFT) & 0xF;
+    uint32_t gpio_pin_num = obj->pin & 0xFF;
+
+    GPIO_WritePinOutput(gpio_addrs[port], gpio_pin_num, value);
+}
+
+int gpio_read(gpio_t *obj)
+{
+    MBED_ASSERT(obj->pin != (PinName)NC);
+    uint32_t port = (obj->pin >> GPIO_PORT_SHIFT) & 0xF;
+    uint32_t gpio_pin_num = obj->pin & 0xFF;
+
+    return (int)GPIO_ReadPinInput(gpio_addrs[port], gpio_pin_num);
+}