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samples: rgb_led: Add support for hexiwear_k64

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The hexiwear_k64 board can drive the leds with a pwm, so update the
rgb_led sample to work with this board.

Jira: ZEP-2025

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2017-07-27 14:37:25 -05:00 committed by Anas Nashif
parent 3b5577d102
commit a580bc5b2e
4 changed files with 33 additions and 9 deletions
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5
samples/basic/rgb_led/README.rst
View File

@ -32,6 +32,11 @@ resistor for each of the single color LEDs.
The sample app requires three PWM ports. So, it can not work
on Quark D2000 platform.
Hexiwear K64
============
No special board setup is necessary because there is an on-board RGB LED
connected to the K64 PWM.
Building and Running
********************

2
samples/basic/rgb_led/prj.conf
View File

@ -2,3 +2,5 @@ CONFIG_STDOUT_CONSOLE=y
CONFIG_PRINTK=y
CONFIG_PWM=y
CONFIG_PWM_QMSI_NUM_PORTS=3
CONFIG_SYS_LOG=y
CONFIG_SYS_LOG_PWM_LEVEL=4

2
samples/basic/rgb_led/sample.yaml
View File

@ -4,5 +4,5 @@ sample:
tests:
- test:
build_only: true
platform_whitelist: arduino_101
platform_whitelist: arduino_101 hexiwear_k64
tags: apps

33
samples/basic/rgb_led/src/main.c
View File

@ -14,9 +14,22 @@
#include <misc/printk.h>
#include <device.h>
#include <pwm.h>
#include <board.h>
#if defined(CONFIG_SOC_QUARK_SE_C1000)
#define PWM_DEV CONFIG_PWM_QMSI_DEV_NAME
#define PWM_DEV0 CONFIG_PWM_QMSI_DEV_NAME
#define PWM_CH0 0
#define PWM_DEV1 CONFIG_PWM_QMSI_DEV_NAME
#define PWM_CH1 1
#define PWM_DEV2 CONFIG_PWM_QMSI_DEV_NAME
#define PWM_CH2 2
#elif defined(CONFIG_BOARD_HEXIWEAR_K64)
#define PWM_DEV0 RED_PWM_NAME
#define PWM_CH0 RED_PWM_CHANNEL
#define PWM_DEV1 GREEN_PWM_NAME
#define PWM_CH1 GREEN_PWM_CHANNEL
#define PWM_DEV2 BLUE_PWM_NAME
#define PWM_CH2 BLUE_PWM_CHANNEL
#else
#error "Choose supported board or add new board for the application"
#endif
@ -38,13 +51,15 @@ static int write_pin(struct device *pwm_dev, u32_t pwm_pin,
void main(void)
{
struct device *pwm_dev;
struct device *pwm_dev[3];
u32_t pulse_width0, pulse_width1, pulse_width2;
printk("PWM demo app-RGB LED\n");
pwm_dev = device_get_binding(PWM_DEV);
if (!pwm_dev) {
pwm_dev[0] = device_get_binding(PWM_DEV0);
pwm_dev[1] = device_get_binding(PWM_DEV1);
pwm_dev[2] = device_get_binding(PWM_DEV2);
if (!pwm_dev[0] || !pwm_dev[1] || !pwm_dev[2]) {
printk("Cannot find PWM device!\n");
return;
}
@ -52,22 +67,24 @@ void main(void)
while (1) {
for (pulse_width0 = 0; pulse_width0 <= PERIOD;
pulse_width0 += STEPSIZE) {
if (write_pin(pwm_dev, 0, pulse_width0) != 0) {
if (write_pin(pwm_dev[0], PWM_CH0,
pulse_width0) != 0) {
printk("pin 0 write fails!\n");
return;
}
for (pulse_width1 = 0; pulse_width1 <= PERIOD;
pulse_width1 += STEPSIZE) {
if (write_pin(pwm_dev, 1, pulse_width1) != 0) {
if (write_pin(pwm_dev[1], PWM_CH1,
pulse_width1) != 0) {
printk("pin 1 write fails!\n");
return;
}
for (pulse_width2 = 0; pulse_width2 <= PERIOD;
pulse_width2 += STEPSIZE) {
if (write_pin(pwm_dev, 2, pulse_width2)
!= 0) {
if (write_pin(pwm_dev[2], PWM_CH2,
pulse_width2) != 0) {
printk("pin 2 write fails!\n");
return;
}