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watch library: implement SPI

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This commit is contained in:
Joey Castillo
2022-01-26 21:32:55 -05:00
parent 1b1bba2de0
commit a11275d84c
8 changed files with 221 additions and 37 deletions
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64
watch-library/hardware/hw/driver_init.c
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@@ -15,6 +15,8 @@ struct slcd_sync_descriptor SEGMENT_LCD_0;
struct i2c_m_sync_desc I2C_0;
struct spi_m_sync_descriptor SPI_0;
void I2C_0_PORT_init(void) {
gpio_set_pin_pull_mode(SDA,
@@ -50,6 +52,68 @@ void I2C_0_init(void) {
I2C_0_PORT_init();
}
void SPI_0_PORT_init(void) {
gpio_set_pin_level(A2,
// <y> Initial level
// <id> pad_initial_level
// <false"> Low
// <true"> High
false);
// Set pin direction to output
gpio_set_pin_direction(A2, GPIO_DIRECTION_OUT);
gpio_set_pin_function(A2, PINMUX_PB02C_SERCOM3_PAD0);
// Set pin direction to input
gpio_set_pin_direction(A4, GPIO_DIRECTION_IN);
gpio_set_pin_pull_mode(A4,
// <y> Pull configuration
// <id> pad_pull_config
// <GPIO_PULL_OFF"> Off
// <GPIO_PULL_UP"> Pull-up
// <GPIO_PULL_DOWN"> Pull-down
GPIO_PULL_OFF);
gpio_set_pin_function(A4, PINMUX_PB00C_SERCOM3_PAD2);
gpio_set_pin_level(A1,
// <y> Initial level
// <id> pad_initial_level
// <false"> Low
// <true"> High
false);
// Set pin direction to output
gpio_set_pin_direction(A1, GPIO_DIRECTION_OUT);
gpio_set_pin_function(A1, PINMUX_PB01C_SERCOM3_PAD3);
gpio_set_pin_level(A3,
// <y> Initial level
// <id> pad_initial_level
// <false"> Low
// <true"> High
true);
// Set pin direction to output
gpio_set_pin_direction(A3, GPIO_DIRECTION_OUT);
}
void SPI_0_CLOCK_init(void) {
hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM3_GCLK_ID_CORE, CONF_GCLK_SERCOM3_CORE_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM3_GCLK_ID_SLOW, CONF_GCLK_SERCOM3_SLOW_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
hri_mclk_set_APBCMASK_SERCOM3_bit(MCLK);
}
void SPI_0_init(void) {
SPI_0_CLOCK_init();
spi_m_sync_init(&SPI_0, SERCOM3);
SPI_0_PORT_init();
}
void delay_driver_init(void) {
delay_init(SysTick);
}