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I2C bus upgrade (#432)

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Zaltora 2017-09-01 06:29:32 -03:00 • committed by Ruslan V. Uss
parent d100f42b1f
commit b83c2629b9
56 changed files with 909 additions and 804 deletions
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25
examples/mcp4725_test/main.c
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@ -14,14 +14,15 @@
#include <FreeRTOS.h>
#include <task.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
#define ADDR MCP4725A0_ADDR0
#define VDD 3.3
inline static void wait_for_eeprom()
inline static void wait_for_eeprom(i2c_dev_t* dev)
{
while (mcp4725_eeprom_busy(ADDR))
while (mcp4725_eeprom_busy(dev))
{
printf("...DAC is busy, waiting...\n");
vTaskDelay(1);
@ -33,21 +34,25 @@ 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,
};
// setup EEPROM values
if (mcp4725_get_power_mode(ADDR, true) != MCP4725_PM_NORMAL)
if (mcp4725_get_power_mode(&dev, true) != MCP4725_PM_NORMAL)
{
printf("DAC was sleeping... Wake up Neo!\n");
mcp4725_set_power_mode(ADDR, MCP4725_PM_NORMAL, true);
wait_for_eeprom();
mcp4725_set_power_mode(&dev, MCP4725_PM_NORMAL, true);
wait_for_eeprom(&dev);
}
printf("Set default DAC ouptut value to MAX...\n");
mcp4725_set_raw_output(ADDR, MCP4725_MAX_VALUE, true);
wait_for_eeprom();
mcp4725_set_raw_output(&dev, MCP4725_MAX_VALUE, true);
wait_for_eeprom(&dev);
printf("And now default DAC output value is 0x%03x\n", mcp4725_get_raw_output(ADDR, true));
printf("And now default DAC output value is 0x%03x\n", mcp4725_get_raw_output(&dev, true));
printf("Now let's generate the sawtooth wave in slow manner\n");
@ -58,7 +63,7 @@ void user_init(void)
if (vout > VDD) vout = 0;
printf("Vout: %.02f\n", vout);
mcp4725_set_voltage(ADDR, VDD, vout, false);
mcp4725_set_voltage(&dev, VDD, vout, false);
// It will be very low freq wave
vTaskDelay(100 / portTICK_PERIOD_MS);