C++ (Cpp) STM32_I2C_TIMINGR Beispiele

Beispiel #1

Datei: i2c-stm32f0.c Projekt: gelraen/cros-ec

static void i2c_set_freq_port(const struct i2c_port_t *p)
{
	int port = p->port;

	/* Disable port */
	STM32_I2C_CR1(port) = 0;
	STM32_I2C_CR2(port) = 0;
	/* Set clock frequency */
	switch (p->kbps) {
	case 1000:
		STM32_I2C_TIMINGR(port) = 0x50110103;
		break;
	case 400:
		STM32_I2C_TIMINGR(port) = 0x50330309;
		break;
	case 100:
		STM32_I2C_TIMINGR(port) = 0xB0420F13;
		break;
	default: /* unknown speed, defaults to 100kBps */
		CPRINTS("I2C bad speed %d kBps", p->kbps);
		STM32_I2C_TIMINGR(port) = 0xB0420F13;
	}
	/* Enable port */
	STM32_I2C_CR1(port) = STM32_I2C_CR1_PE;
}

Beispiel #2

Datei: i2c-stm32f0.c Projekt: Basavaraja-MS/ec_local

static void i2c_set_freq_port(const struct i2c_port_t *p,
			      enum stm32_i2c_clk_src src,
			      enum i2c_freq freq)
{
	int port = p->port;
	const uint32_t *regs = timingr_regs[src];

	/* Disable port */
	STM32_I2C_CR1(port) = 0;
	STM32_I2C_CR2(port) = 0;
	/* Set clock frequency */
	STM32_I2C_TIMINGR(port) = regs[freq];
	/* Enable port */
	STM32_I2C_CR1(port) = STM32_I2C_CR1_PE;
}