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[i2c] adjust the timing for I2C initialization

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This commit is contained in:
LZerro
2024-04-30 08:46:12 +08:00
committed by GitHub
parent 4c9d3be98a
commit f190cba0ab
27 changed files with 436 additions and 139 deletions
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6
components/drivers/i2c/i2c-bit-ops.c
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@@ -376,6 +376,12 @@ static rt_ssize_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
rt_uint32_t i;
rt_uint16_t ignore_nack;
if((ops->i2c_pin_init_flag == RT_FALSE) && (ops->pin_init != RT_NULL))
{
ops->pin_init();
ops->i2c_pin_init_flag = RT_TRUE;
}
if (num == 0) return 0;
for (i = 0; i < num; i++)

3
components/drivers/include/drivers/i2c-bit-ops.h
View File

@@ -27,6 +27,9 @@ struct rt_i2c_bit_ops
rt_uint32_t delay_us; /* scl and sda line delay */
rt_uint32_t timeout; /* in tick */
void (*pin_init)(void);
rt_bool_t i2c_pin_init_flag;
};
rt_err_t rt_i2c_bit_add_bus(struct rt_i2c_bus_device *bus,