lm4f120/include/periph_cpu.h¶
CPU specific definitions for internal peripheral handling.
-
HAVE_GPIO_T
¶ Overwrite the default gpio_t type definition.
-
GPIO_PIN
( x, y)¶ 1
((gpio_t)((x<<4) | y))
-
uint32_t
gpio_t
¶
-
HAVE_GPIO_DIR_T
¶ Override values for pin direction configuration.
-
enum
gpio_dir_t
¶ - GPIO_DIR_IN
= GPIO_DIR_MODE_IN
- configure pin as input
- GPIO_DIR_OUT
= GPIO_DIR_MODE_OUT
- configure pin as output
- GPIO_DIR_IN
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PERIPH_SPI_NEEDS_TRANSFER_BYTE
¶ declare needed generic SPI functions
1
1
-
PERIPH_SPI_NEEDS_TRANSFER_REG
¶ 1
1
-
PERIPH_SPI_NEEDS_TRANSFER_REGS
¶ 1
1
-
PERIPH_SPI_NEEDS_INIT_CS
¶ 1
1
-
HAVE_SPI_CLK_T
¶ Override SPI clock speed values.
1
1
-
enum
spi_clk_t
¶ - SPI_CLK_4MHZ
= 4000000
- drive the SPI bus with 4MHz
- SPI_CLK_100KHZ
= SPI_CLK_SEL(0, 1, 1)
- 16/128 -> 125KHz
- SPI_CLK_400KHZ
= SPI_CLK_SEL(1, 1, 0)
- 16/32 -> 500KHz
- SPI_CLK_1MHZ
= SPI_CLK_SEL(0, 0, 1)
- 16/16 -> 1MHz
- SPI_CLK_5MHZ
= SPI_CLK_SEL(0, 0, 0)
- 16/4 -> 4MHz
- SPI_CLK_10MHZ
= SPI_CLK_SEL(1, 0, 0)
- 16/2 -> 8MHz
- SPI_CLK_4MHZ
-
HAVE_SPI_MODE_T
¶ Override SPI mode settings.
1
1
-
enum
spi_mode_t
¶ - SPI_MODE_0
= SPI_MODE_SEL(0, 0)
- mode 0
- SPI_MODE_1
= SPI_MODE_SEL(0, 1)
- mode 1
- SPI_MODE_2
= SPI_MODE_SEL(1, 0)
- mode 2
- SPI_MODE_3
= SPI_MODE_SEL(1, 1)
- mode 3
- SPI_MODE_0
-
SPI_HWCS
( x)¶ Override resolution options.
1
(UINT_MAX - 1)
Override SPI hardware chip select macro
As of now, we do not support HW CS, so we always set it to a fixed value
-
enum
@73
¶ - PORT_A
= 0
- port A
- PORT_B
= 1
- port B
- PORT_C
= 2
- port C
- PORT_D
= 3
- port D
- PORT_E
= 4
- port E
- PORT_F
= 5
- port F
- PORT_A
-
struct
spi_conf_t
¶ SPI module configuration options.
Structure for SPI configuration data.
SPI configuration data.
SPI device configuration.
SPI configuration values.
SPI configuration data structure.
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uint8_t
num
¶ number of SSI device, i.e.
0 or 1
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gpio.h::gpio_t
mosi_pin
¶ pin used for MOSI
MOSI pin.
used MOSI pin
-
gpio.h::gpio_t
miso_pin
¶ pin used for MISO
MISO pin.
used MISO pin
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gpio.h::gpio_t
sck_pin
¶ pin used for SCK
-
gpio.h::gpio_t
cs_pin
¶ pin used for CS
HWCS pin, set to GPIO_UNDEF if not mapped.
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SPI_Type *
dev
¶ SPI device to use.
-
gpio.h::gpio_t
pin_miso
¶ MISO pin used.
-
gpio.h::gpio_t
pin_mosi
¶ MOSI pin used.
-
gpio.h::gpio_t
pin_clk
¶ CLK pin used.
-
gpio.h::gpio_t
pin_cs
()¶ pins used for HW cs lines
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kinetis/include/periph_cpu.h::gpio_pcr_t
pcr
¶ alternate pin function values
-
uint32_t
simmask
¶ bit in the SIM register
-
unsigned long
ssi_sysctl
¶ SSI device in sysctl.
-
unsigned long
ssi_base
¶ SSI base address.
-
unsigned long
gpio_sysctl
¶ GPIO device in sysctl.
-
unsigned long
gpio_port
¶ GPIO port.
-
unsigned long
clk
¶ pin used for SCK
-
unsigned long
fss
¶ pin used for FSS
-
unsigned long
rx
¶ pin used for MISO
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unsigned long
tx
¶ pin used for MOSI
-
unsigned long
mask
¶ Pin mask.
-
struct spi_conf_t::@74
pins
¶ Pin setting.
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NRF_SPI_Type *
dev
¶ SPI device used.
-
uint8_t
sclk
¶ CLK pin.
-
uint8_t
mosi
¶ MOSI pin.
-
uint8_t
miso
¶ MISO pin.
-
SercomSpi *
dev
¶ pointer to the used SPI device
-
gpio.h::gpio_t
clk_pin
¶ used CLK pin
-
sam0_common/include/periph_cpu_common.h::gpio_mux_t
miso_mux
¶ alternate function for MISO pin (mux)
-
sam0_common/include/periph_cpu_common.h::gpio_mux_t
mosi_mux
¶ alternate function for MOSI pin (mux)
-
sam0_common/include/periph_cpu_common.h::gpio_mux_t
clk_mux
¶ alternate function for CLK pin (mux)
-
sam0_common/include/periph_cpu_common.h::spi_misopad_t
miso_pad
¶ pad to use for MISO line
-
sam0_common/include/periph_cpu_common.h::spi_mosipad_t
mosi_pad
¶ pad to use for MOSI and CLK line
-
Spi *
dev
¶ SPI module to use.
-
uint8_t
id
¶ corresponding ID of that module
-
gpio.h::gpio_t
clk
¶ pin mapped to the CLK line
-
gpio.h::gpio_t
mosi
¶ pin mapped to the MOSI line
-
gpio.h::gpio_t
miso
¶ pin mapped to the MISO line
-
sam0_common/include/periph_cpu_common.h::gpio_mux_t
mux
¶ pin MUX setting
-
SPI_TypeDef *
dev
¶ SPI device base register address.
-
gpio.h::gpio_t
sclk_pin
¶ SCLK pin.
-
stm32_common/include/periph_cpu_common.h::gpio_af_t
af
¶ pin alternate function
-
uint32_t
rccmask
¶ bit in the RCC peripheral enable register
-
uint8_t
apbbus
¶ APBx bus the device is connected to.
-
uint8_t