Defined Constants and Types for the NRF52xx I2C More...

Collaboration diagram for I2C Defines:

Modules
	I2C event -> task shortcuts
	The effect of activated shortcut is, that upon I2C event triggering, the hardware will automatically start chosen task without intervention of the software.

	I2C interrupt enable flags

	I2C peripheral mode

	I2C instances

	I2C interrupts

	I2C frequency constants

Macros
#define	I2C_EVENT_RXSTARTED(i2c) MMIO32((i2c) + 0x14C)

#define	I2C_EVENT_TXSTARTED(i2c) MMIO32((i2c) + 0x150)

#define	I2C_EVENT_LASTRX(i2c) MMIO32((i2c) + 0x15C)

#define	I2C_EVENT_LASTTX(i2c) MMIO32((i2c) + 0x160)

#define	I2C_RXDPTR(i2c) MMIO32((i2c) + 0x534)

#define	I2C_RXDMAXCNT(i2c) MMIO32((i2c) + 0x538)

#define	I2C_RXDAMOUNT(i2c) MMIO32((i2c) + 0x53C)

#define	I2C_RXDLIST(i2c) MMIO32((i2c) + 0x540)

#define	I2C_TXDPTR(i2c) MMIO32((i2c) + 0x544)

#define	I2C_TXDMAXCNT(i2c) MMIO32((i2c) + 0x548)

#define	I2C_TXDAMOUNT(i2c) MMIO32((i2c) + 0x54C)

#define	I2C_TXDLIST(i2c) MMIO32((i2c) + 0x550)

#define	I2C_TASK_STARTRX(i2c) MMIO32((i2c) + 0x000)

#define	I2C_TASK_STARTTX(i2c) MMIO32((i2c) + 0x008)

#define	I2C_TASK_STOP(i2c) MMIO32((i2c) + 0x014)

#define	I2C_TASK_SUSPEND(i2c) MMIO32((i2c) + 0x01c)

#define	I2C_TASK_RESUME(i2c) MMIO32((i2c) + 0x020)

#define	I2C_EVENT_STOPPED(i2c) MMIO32((i2c) + 0x104)

#define	I2C_EVENT_RXDREADY(i2c) MMIO32((i2c) + 0x108)

#define	I2C_EVENT_TXDSENT(i2c) MMIO32((i2c) + 0x11c)

#define	I2C_EVENT_ERROR(i2c) MMIO32((i2c) + 0x124)

#define	I2C_EVENT_BB(i2c) MMIO32((i2c) + 0x138)

#define	I2C_EVENT_SUSPENDED(i2c) MMIO32((i2c) + 0x148)

#define	I2C_SHORTS(i2c) MMIO32((i2c) + 0x200)

#define	I2C_INTEN(i2c) MMIO32((i2c) + 0x300)

#define	I2C_INTENSET(i2c) MMIO32((i2c) + 0x304)

#define	I2C_INTENCLR(i2c) MMIO32((i2c) + 0x308)

#define	I2C_ERRORSRC(i2c) MMIO32((i2c) + 0x4c4)

#define	I2C_ENABLE(i2c) MMIO32((i2c) + 0x500)

#define	I2C_PSELSCL(i2c) MMIO32((i2c) + 0x508)

#define	I2C_PSELSDA(i2c) MMIO32((i2c) + 0x50c)

#define	I2C_RXD(i2c) MMIO32((i2c) + 0x518)

#define	I2C_TXD(i2c) MMIO32((i2c) + 0x51c)

#define	I2C_FREQUENCY(i2c) MMIO32((i2c) + 0x524)

#define	I2C_ADDRESS(i2c) MMIO32((i2c) + 0x588)

#define	I2C_ERRORSRC_OVERRUN (1 << 0)

#define	I2C_ERRORSRC_ANACK (1 << 1)

#define	I2C_ERRORSRC_DNACK (1 << 2)

#define	I2C_PSEL_OFF (0xffffffff)

Functions
void	i2c_set_tx_buffer (uint32_t i2c, const uint8_t *buffer, uint8_t len)
	Configure I2C transmit buffer properties. More...

void	i2c_set_rx_buffer (uint32_t i2c, uint8_t *buffer, uint8_t len)
	Configure I2C receive buffer properties. More...

Detailed Description

Defined Constants and Types for the NRF52xx I2C

Version: 1.0.0

Date: Nov 2021

LGPL License Terms libopencm3 License

Author: © 2016 Maxim Sloyko maxim.nosp@m.s@go.nosp@m.ogle..nosp@m.com; © 2021 Eduard Drusa <ventyl86 at netkosice dot sk>

Macro Definition Documentation

◆ I2C_ADDRESS

#define I2C_ADDRESS ( i2c ) MMIO32((i2c) + 0x588)

Definition at line 73 of file common/i2c.h.

◆ I2C_ENABLE

#define I2C_ENABLE ( i2c ) MMIO32((i2c) + 0x500)

Definition at line 67 of file common/i2c.h.

◆ I2C_ERRORSRC

#define I2C_ERRORSRC ( i2c ) MMIO32((i2c) + 0x4c4)

Definition at line 66 of file common/i2c.h.

◆ I2C_ERRORSRC_ANACK

#define I2C_ERRORSRC_ANACK (1 << 1)

Definition at line 104 of file common/i2c.h.

◆ I2C_ERRORSRC_DNACK

#define I2C_ERRORSRC_DNACK (1 << 2)

Definition at line 105 of file common/i2c.h.

◆ I2C_ERRORSRC_OVERRUN

#define I2C_ERRORSRC_OVERRUN (1 << 0)

Definition at line 103 of file common/i2c.h.

◆ I2C_EVENT_BB

#define I2C_EVENT_BB ( i2c ) MMIO32((i2c) + 0x138)

Definition at line 58 of file common/i2c.h.

◆ I2C_EVENT_ERROR

#define I2C_EVENT_ERROR ( i2c ) MMIO32((i2c) + 0x124)

Definition at line 57 of file common/i2c.h.

◆ I2C_EVENT_LASTRX

#define I2C_EVENT_LASTRX ( i2c ) MMIO32((i2c) + 0x15C)

Definition at line 44 of file 52/i2c.h.

◆ I2C_EVENT_LASTTX

#define I2C_EVENT_LASTTX ( i2c ) MMIO32((i2c) + 0x160)

Definition at line 45 of file 52/i2c.h.

◆ I2C_EVENT_RXDREADY

#define I2C_EVENT_RXDREADY ( i2c ) MMIO32((i2c) + 0x108)

Definition at line 55 of file common/i2c.h.

◆ I2C_EVENT_RXSTARTED

#define I2C_EVENT_RXSTARTED ( i2c ) MMIO32((i2c) + 0x14C)

Definition at line 42 of file 52/i2c.h.

◆ I2C_EVENT_STOPPED

#define I2C_EVENT_STOPPED ( i2c ) MMIO32((i2c) + 0x104)

Definition at line 54 of file common/i2c.h.

◆ I2C_EVENT_SUSPENDED

#define I2C_EVENT_SUSPENDED ( i2c ) MMIO32((i2c) + 0x148)

Definition at line 59 of file common/i2c.h.

◆ I2C_EVENT_TXDSENT

#define I2C_EVENT_TXDSENT ( i2c ) MMIO32((i2c) + 0x11c)

Definition at line 56 of file common/i2c.h.

◆ I2C_EVENT_TXSTARTED

#define I2C_EVENT_TXSTARTED ( i2c ) MMIO32((i2c) + 0x150)

Definition at line 43 of file 52/i2c.h.

◆ I2C_FREQUENCY

#define I2C_FREQUENCY ( i2c ) MMIO32((i2c) + 0x524)

Definition at line 72 of file common/i2c.h.

◆ I2C_INTEN

#define I2C_INTEN ( i2c ) MMIO32((i2c) + 0x300)

Definition at line 63 of file common/i2c.h.

◆ I2C_INTENCLR

#define I2C_INTENCLR ( i2c ) MMIO32((i2c) + 0x308)

Definition at line 65 of file common/i2c.h.

◆ I2C_INTENSET

#define I2C_INTENSET ( i2c ) MMIO32((i2c) + 0x304)

Definition at line 64 of file common/i2c.h.

◆ I2C_PSEL_OFF

#define I2C_PSEL_OFF (0xffffffff)

Definition at line 139 of file common/i2c.h.

◆ I2C_PSELSCL

#define I2C_PSELSCL ( i2c ) MMIO32((i2c) + 0x508)

Definition at line 68 of file common/i2c.h.

◆ I2C_PSELSDA

#define I2C_PSELSDA ( i2c ) MMIO32((i2c) + 0x50c)

Definition at line 69 of file common/i2c.h.

◆ I2C_RXD

#define I2C_RXD ( i2c ) MMIO32((i2c) + 0x518)

Definition at line 70 of file common/i2c.h.

◆ I2C_RXDAMOUNT

#define I2C_RXDAMOUNT ( i2c ) MMIO32((i2c) + 0x53C)

Definition at line 49 of file 52/i2c.h.

◆ I2C_RXDLIST

#define I2C_RXDLIST ( i2c ) MMIO32((i2c) + 0x540)

Definition at line 50 of file 52/i2c.h.

◆ I2C_RXDMAXCNT

#define I2C_RXDMAXCNT ( i2c ) MMIO32((i2c) + 0x538)

Definition at line 48 of file 52/i2c.h.

◆ I2C_RXDPTR

#define I2C_RXDPTR ( i2c ) MMIO32((i2c) + 0x534)

Definition at line 47 of file 52/i2c.h.

◆ I2C_SHORTS

#define I2C_SHORTS ( i2c ) MMIO32((i2c) + 0x200)

Definition at line 62 of file common/i2c.h.

◆ I2C_TASK_RESUME

#define I2C_TASK_RESUME ( i2c ) MMIO32((i2c) + 0x020)

Definition at line 51 of file common/i2c.h.

◆ I2C_TASK_STARTRX

#define I2C_TASK_STARTRX ( i2c ) MMIO32((i2c) + 0x000)

Definition at line 47 of file common/i2c.h.

◆ I2C_TASK_STARTTX

#define I2C_TASK_STARTTX ( i2c ) MMIO32((i2c) + 0x008)

Definition at line 48 of file common/i2c.h.

◆ I2C_TASK_STOP

#define I2C_TASK_STOP ( i2c ) MMIO32((i2c) + 0x014)

Definition at line 49 of file common/i2c.h.

◆ I2C_TASK_SUSPEND

#define I2C_TASK_SUSPEND ( i2c ) MMIO32((i2c) + 0x01c)

Definition at line 50 of file common/i2c.h.

◆ I2C_TXD

#define I2C_TXD ( i2c ) MMIO32((i2c) + 0x51c)

Definition at line 71 of file common/i2c.h.

◆ I2C_TXDAMOUNT

#define I2C_TXDAMOUNT ( i2c ) MMIO32((i2c) + 0x54C)

Definition at line 53 of file 52/i2c.h.

◆ I2C_TXDLIST

#define I2C_TXDLIST ( i2c ) MMIO32((i2c) + 0x550)

Definition at line 54 of file 52/i2c.h.

◆ I2C_TXDMAXCNT

#define I2C_TXDMAXCNT ( i2c ) MMIO32((i2c) + 0x548)

Definition at line 52 of file 52/i2c.h.

◆ I2C_TXDPTR

#define I2C_TXDPTR ( i2c ) MMIO32((i2c) + 0x544)

Definition at line 51 of file 52/i2c.h.

Function Documentation

◆ i2c_set_rx_buffer()

void i2c_set_rx_buffer	(	uint32_t	i2c,
		uint8_t *	buffer,
		uint8_t	len
	)

Configure I2C receive buffer properties.

Configures receive buffer for EasyDMA transaction. This API is only available if I2C_MODE_MASTER mode is activated.

Configures linear RX buffer for EasyDMA transmission.

Parameters

[in]	i2c	i2c peripheral base, see I2C instances
[in]	buffer	address of buffer start
[in]	len	length of the buffer

Definition at line 54 of file i2c.c.

References I2C_RXDLIST, I2C_RXDMAXCNT, and I2C_RXDPTR.

◆ i2c_set_tx_buffer()

void i2c_set_tx_buffer	(	uint32_t	i2c,
		const uint8_t *	buffer,
		uint8_t	len
	)

Configure I2C transmit buffer properties.

Configures transmit buffer for EasyDMA transaction. This API is only available if I2C_MODE_MASTER mode is activated.

Configures linear TX buffer for EasyDMA transmission.