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dts: riscv: gigadevice: Add GD32VF103 DAC configuration #41552

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merged 3 commits into from
Jan 4, 2022
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dts: riscv: gigadevice: Add GD32VF103 DAC configuration #41552

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9930912
drivers: dac: Adds DAC support for gd32vf103
soburi Dec 22, 2021
f701e7a
boards: riscv: longan_nano: Add DAC configuration
soburi Jan 3, 2022
df07249
samples: drivers: dac: add longan_nano board
soburi Jan 3, 2022
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6 changes: 6 additions & 0 deletions boards/riscv/longan_nano/longan_nano-pinctrl.dtsi
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Expand Up @@ -11,4 +11,10 @@
pinmux = <USART0_TX_PA9_NORMP>, <USART0_RX_PA10_NORMP>;
};
};

dac_default: dac_default {
group1 {
pinmux = <DAC_OUT0_PA4>;
};
};
};
6 changes: 6 additions & 0 deletions boards/riscv/longan_nano/longan_nano.dts
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Expand Up @@ -26,3 +26,9 @@
pinctrl-0 = <&usart0_default>;
pinctrl-names = "default";
};

&dac {
status = "okay";
pinctrl-0 = <&dac_default>;
pinctrl-names = "default";
};
6 changes: 6 additions & 0 deletions boards/riscv/longan_nano/longan_nano_lite.dts
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Expand Up @@ -26,3 +26,9 @@
pinctrl-0 = <&usart0_default>;
pinctrl-names = "default";
};

&dac {
status = "okay";
pinctrl-0 = <&dac_default>;
pinctrl-names = "default";
};
2 changes: 1 addition & 1 deletion drivers/dac/Kconfig.gd32
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Expand Up @@ -9,7 +9,7 @@ DT_COMPAT_GD_GD32_DAC := gd,gd32-dac

config DAC_GD32
bool "GD32 DAC driver"
depends on SOC_FAMILY_GD32
depends on (SOC_FAMILY_GD32 || SOC_SERIES_GD32VF103)
default $(dt_compat_enabled,$(DT_COMPAT_GD_GD32_DAC))
help
Enable GigaDevice GD32 DAC driver
10 changes: 10 additions & 0 deletions dts/riscv/gigadevice/gd32vf103.dtsi
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Expand Up @@ -95,6 +95,16 @@
label = "UART_2";
};

dac: dac@40007400 {
compatible = "gd,gd32-dac";
reg = <0x40007400 0x400>;
rcu-periph-clock = <0x71d>;
num-channels = <2>;
label = "DAC";
status = "disabled";
#io-channel-cells = <1>;
};

afio: afio@40010000 {
compatible = "gd,gd32-afio";
reg = <0x40010000 0x400>;
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20 changes: 20 additions & 0 deletions samples/drivers/dac/README.rst
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Expand Up @@ -189,6 +189,26 @@ The sample can be built and executed for the

Bridge the JP23 to DAC with the jumper cap, then DAC output will available on JP7.

Building and Running for Longan Nano and Longan Nano Lite
=========================================================
The sample can be built and executed for the
:ref:`longan_nano` as follows:

.. zephyr-app-commands::
:zephyr-app: samples/drivers/dac
:board: longan_nano
:goals: build flash
:compact:

also can run for the
:ref: `longan_nano_lite` as follows:

.. zephyr-app-commands::
:zephyr-app: samples/drivers/dac
:board: longan_nano_lite
:goals: build flash
:compact:

Sample output
=============

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13 changes: 13 additions & 0 deletions samples/drivers/dac/boards/longan_nano.overlay
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@@ -0,0 +1,13 @@
/*
* Copyright 2021 TOKITA Hiroshi
*
* SPDX-License-Identifier: Apache-2.0
*/

/ {
zephyr,user {
dac = <&dac>;
dac-channel-id = <0>;
dac-resolution = <12>;
};
};
13 changes: 13 additions & 0 deletions samples/drivers/dac/boards/longan_nano_lite.overlay
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@@ -0,0 +1,13 @@
/*
* Copyright 2021 TOKITA Hiroshi
*
* SPDX-License-Identifier: Apache-2.0
*/

/ {
zephyr,user {
dac = <&dac>;
dac-channel-id = <0>;
dac-resolution = <12>;
};
};
2 changes: 1 addition & 1 deletion samples/drivers/dac/sample.yaml
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Expand Up @@ -7,7 +7,7 @@ tests:
arduino_zero frdm_k22f frdm_k64f nucleo_f091rc nucleo_g071rb nucleo_g431rb
nucleo_l073rz nucleo_l152re twr_ke18f nucleo_f767zi nucleo_f429zi bl652_dvk
bl653_dvk bl654_dvk bl5340_dvk_cpuapp stm32f3_disco stm32l562e_dk nucleo_l552ze_q
gd32f450i_eval
gd32f450i_eval longan_nano longan_nano_lite
depends_on: dac
harness: console
harness_config:
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