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pca9685 pcf8591 ms561101ba03 update

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This commit is contained in:
lilian 2017-08-04 18:27:59 -03:00
parent 5d105316df
commit 2eb50c5f22
9 changed files with 109 additions and 96 deletions
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19
examples/pca9685_pwm/main.c
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@ -11,8 +11,9 @@
#include <pca9685/pca9685.h>
#include <stdio.h>
#define ADDR 0x40
#define ADDR PCA9685_ADDR_BASE
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -23,19 +24,23 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
pca9685_init(ADDR);
pca9685_init(&dev);
pca9685_set_pwm_frequency(ADDR, 1000);
printf("Freq 1000Hz, real %d\n", pca9685_get_pwm_frequency(ADDR));
pca9685_set_pwm_frequency(&dev, 1000);
printf("Freq 1000Hz, real %d\n", pca9685_get_pwm_frequency(&dev));
uint16_t val = 0;
while (true)
{
printf("Set ch0 to %d, ch4 to %d\n", val, 4096 - val);
pca9685_set_pwm_value(ADDR, 0, val);
pca9685_set_pwm_value(ADDR, 4, 4096 - val);
pca9685_set_pwm_value(&dev, 0, val);
pca9685_set_pwm_value(&dev, 4, 4096 - val);
if (val++ == 4096)
val = 0;