kingkevin
/
stm32f1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

i2c: minor, fix spacing

This commit is contained in:
King Kévin 2021-07-19 18:03:14 +02:00
parent af28da0a7d
commit 61d65977ac
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/i2c_master.c
View File

@ -183,7 +183,7 @@ void i2c_master_setup(uint32_t i2c, uint16_t frequency)
gpio_set_mode(GPIO_PORT_SCL(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SCL(i2c)); // setup I²C I/O pins
rcc_periph_clock_enable(RCC_GPIO_PORT_SDA(i2c)); // enable clock for I²C I/O peripheral
gpio_set(GPIO_PORT_SDA(i2c), GPIO_PIN_SDA(i2c)); // already put signal high to avoid small pulse
gpio_set_mode(GPIO_PORT_SDA(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SDA(i2c)); // setup I²C I/O pins
gpio_set_mode(GPIO_PORT_SDA(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SDA(i2c)); // setup I²C I/O pins
rcc_periph_clock_enable(RCC_AFIO); // enable clock for alternate function
rcc_periph_clock_enable(RCC_I2C(i2c)); // enable clock for I²C peripheral
i2c_reset(i2c); // reset peripheral domain
@ -271,7 +271,7 @@ bool i2c_master_reset(uint32_t i2c)
gpio_set(GPIO_PORT_SDA(i2c), GPIO_PIN_SDA(i2c)); // set high (try second transition)
to_return &= !gpio_get(GPIO_PORT_SDA(i2c), GPIO_PIN_SDA(i2c)); // ensure it is high
gpio_set_mode(GPIO_PORT_SCL(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SCL(i2c)); // set I²C I/O pins back
gpio_set_mode(GPIO_PORT_SDA(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SDA(i2c)); // set I²C I/O pins back
gpio_set_mode(GPIO_PORT_SDA(i2c), GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO_PIN_SDA(i2c)); // set I²C I/O pins back
I2C_CR1(i2c) |= I2C_CR1_SWRST; // reset device
I2C_CR1(i2c) &= ~I2C_CR1_SWRST; // reset device
i2c_peripheral_enable(i2c); // re-enable device