Commit ac174d30 authored by Daniel DeGrasse's avatar Daniel DeGrasse Committed by Carles Cufi
Browse files

boards: mimxrt1015_evk: Enable ADC on RT1015 



Enables ADC on RT1015 evaluation board. Channels 1 and 13 are exposed as
pins 2 and 1 of J18 on the EVK.

Signed-off-by: default avatarDaniel DeGrasse <daniel.degrasse@nxp.com>
parent 4e6ac932

boards/arm/mimxrt1015_evk/doc/index.rst

+6 −0
Original line number Diff line number Diff line
@@ -76,6 +76,8 @@ features: 
+-----------+------------+-------------------------------------+

| USB       | on-chip    | USB device                          |

+-----------+------------+-------------------------------------+

| ADC       | on-chip    | ADC                                 |

+-----------+------------+-------------------------------------+



The default configuration can be found in the defconfig file:

``boards/arm/mimxrt1015_evk/mimxrt1015_evk_defconfig``
@@ -114,6 +116,10 @@ The MIMXRT1015 SoC has five pairs of pinmux/gpio controllers. 
+---------------+-----------------+---------------------------+

| GPIO_AD_B0_13 | LPSPI1_SDI      | SPI                       |

+---------------+-----------------+---------------------------+

| GPIO_AD_B0_14 | ADC             | ADC1 Channel 1            |

+---------------+-----------------+---------------------------+

| GPIO_AD_B1_13 | ADC             | ADC1 Channel 13           |

+---------------+-----------------+---------------------------+



System Clock

============

boards/arm/mimxrt1015_evk/mimxrt1015_evk.dts

+4 −0
Original line number Diff line number Diff line
@@ -101,3 +101,7 @@ arduino_serial: &lpuart4 {}; 
zephyr_udc0: &usb1 {

	status = "okay";

};



&adc1 {

	status = "okay";

};

boards/arm/mimxrt1015_evk/mimxrt1015_evk.yaml

+1 −0
Original line number Diff line number Diff line
@@ -22,3 +22,4 @@ supported: 
  - i2c

  - usb_device

  - spi

  - adc

boards/arm/mimxrt1015_evk/pinmux.c

+13 −0
Original line number Diff line number Diff line
@@ -106,6 +106,19 @@ static int mimxrt1015_evk_init(const struct device *dev) 
			IOMUXC_SW_PAD_CTL_PAD_DSE(6));

#endif



#if DT_NODE_HAS_STATUS(DT_NODELABEL(adc1), okay) & CONFIG_ADC

	/* ADC1 Channels 1 and 13 exposed as pins 2 and 1 on J18 of eval board */

	IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_14_GPIO1_IO14, 0U);

	IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B1_13_GPIO1_IO29, 0U);



	IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_14_GPIO1_IO14,

				IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

				IOMUXC_SW_PAD_CTL_PAD_DSE(6));

	IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B1_13_GPIO1_IO29,

				IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |

				IOMUXC_SW_PAD_CTL_PAD_DSE(6));

#endif



	return 0;

}

samples/drivers/adc/boards/mimxrt1015_evk.overlay

0 → 100644
+12 −0
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/*

 * SPDX-License-Identifier: Apache-2.0

 *

 * Copyright (c) 2021 NXP

 */



/ {

	zephyr,user {

		/* adjust channel number according to pinmux in board.dts */

		io-channels = <&adc1 13>;

	};

};

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