/**
******************************************************************************
* @file stm32f4xx_hal_i2c.c
* @author MCD Application Team
* @brief I2C HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Inter Integrated Circuit (I2C) peripheral:
* + Initialization and de-initialization functions
* + IO operation functions
* + Peripheral State, Mode and Error functions
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The I2C HAL driver can be used as follows:
(#) Declare a I2C_HandleTypeDef handle structure, for example:
I2C_HandleTypeDef hi2c;
(#)Initialize the I2C low level resources by implementing the @ref HAL_I2C_MspInit() API:
(##) Enable the I2Cx interface clock
(##) I2C pins configuration
(+++) Enable the clock for the I2C GPIOs
(+++) Configure I2C pins as alternate function open-drain
(##) NVIC configuration if you need to use interrupt process
(+++) Configure the I2Cx interrupt priority
(+++) Enable the NVIC I2C IRQ Channel
(##) DMA Configuration if you need to use DMA process
(+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive stream
(+++) Enable the DMAx interface clock using
(+++) Configure the DMA handle parameters
(+++) Configure the DMA Tx or Rx stream
(+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle
(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on
the DMA Tx or Rx stream
(#) Configure the Communication Speed, Duty cycle, Addressing mode, Own Address1,
Dual Addressing mode, Own Address2, General call and Nostretch mode in the hi2c Init structure.
(#) Initialize the I2C registers by calling the @ref HAL_I2C_Init(), configures also the low level Hardware
(GPIO, CLOCK, NVIC...etc) by calling the customized @ref HAL_I2C_MspInit() API.
(#) To check if target device is ready for communication, use the function @ref HAL_I2C_IsDeviceReady()
(#) For I2C IO and IO MEM operations, three operation modes are available within this driver :
*** Polling mode IO operation ***
=================================
[..]
(+) Transmit in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Transmit()
(+) Receive in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Receive()
(+) Transmit in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Transmit()
(+) Receive in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Receive()
*** Polling mode IO MEM operation ***
=====================================
[..]
(+) Write an amount of data in blocking mode to a specific memory address using @ref HAL_I2C_Mem_Write()
(+) Read an amount of data in blocking mode from a specific memory address using @ref HAL_I2C_Mem_Read()
*** Interrupt mode IO operation ***
===================================
[..]
(+) Transmit in master mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Transmit_IT()
(+) At transmission end of transfer, @ref HAL_I2C_MasterTxCpltCallback() is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_MasterTxCpltCallback()
(+) Receive in master mode an amount of data in non-blocking mode using @ref HAL_I2C_Master_Receive_IT()
(+) At reception end of transfer, @ref HAL_I2C_MasterRxCpltCallback() is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_MasterRxCpltCallback()
(+) Transmit in slave mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Transmit_IT()
(+) At transmission end of transfer, @ref HAL_I2C_SlaveTxCpltCallback() is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_SlaveTxCpltCallback()
(+) Receive in slave mode an amount of data in non-blocking mode using @ref HAL_I2C_Slave_Receive_IT()
(+) At reception end of transfer, @ref HAL_I2C_SlaveRxCpltCallback() is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_SlaveRxCpltCallback()
(+) In case of transfer Error, @ref HAL_I2C_ErrorCallback() function is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_ErrorCallback()
(+) Abort a master I2C process communication with Interrupt using @ref HAL_I2C_Master_Abort_IT()
(+) End of abort process, @ref HAL_I2C_AbortCpltCallback() is executed and user can
add his own code by customization of function pointer @ref HAL_I2C_AbortCpltCallback()
*** Interrupt mode or DMA mode IO sequential operation ***
==========================================================
[..]
(@) These interfaces allow to manage a sequential transfer with a repeated start condition
when a direction change during transfer
[..]
(+) A specific option field manage the different steps of a sequential transfer
(+) Option field values are defined through @ref I2C_XferOptions_definition and are listed below:
(++) I2C_FIRST_AND_LAST_FRAME: No sequential usage, functionnal is same as associated interfaces in no sequential mode
(++) I2C_FIRST_FRAME: Sequential usage, this option allow to manage a sequence with start condition, address
and data to transfer without a final stop condition
(++) I2C_FIRST_AND_NEXT_FRAME: Sequential usage (Master only), this option allow to manage a sequence with start condition, address
and data to transfer without a final stop condition, an then permit a call the same master sequential interface
several times (like @ref HAL_I2C_Master_Seq_Transmit_IT() then @ref HAL_I2C_Master_Seq_Transmit_IT()
or @ref HAL_I2C_Master_Seq_Transmit_DMA() then @ref HAL_I2C_Master_Seq_Transmit_DMA())
(++) I2C_NEXT_FRAME: Sequential usage, this option allow to manage a sequence with a restart condition, address
and with new data to transfer if the direction change or manage only the new data to transfer
if no direction change and without a final stop condition in both cases
(++) I2C_LAST_FRAME: Sequential usage, this option allow to manage a sequance with a restart condition, address
and with new data to transfer if the direction change or manage only the new data to transfer
if no direction change and with a final stop condition in both cases
(++) I2C_LAST_FRAME_NO_STOP: Sequential usage (Master only), this option allow to manage a restart condition after several call of the same master sequential
interface several times (link with option I2C_FIRST_AND_NEXT_FRAME).
Usage can, transfer several bytes one by one using HAL_I2C_Master_Seq_Transmit_IT(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME)
or HAL_I2C_Master_Seq_Receive_IT(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME)
or HAL_I2C_Master_Seq_Transmit_DMA(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME)
or HAL_I2C_Master_Seq_Receive_DMA(option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME).
Then usage of this option I
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测试STM32网络系统能的测试工程源码+项目说明.zip (404个子文件)
stm32f4xx_hal_i2c.c 230KB
stm32f4xx_hal_tim.c 207KB
ff.c 201KB
tasks.c 166KB
stm32f4xx_hal_rcc_ex.c 150KB
sockets.c 135KB
stm32f4xx_hal_uart.c 108KB
stm32f4xx_hal_sd.c 100KB
queue.c 91KB
tcp.c 84KB
nd6.c 83KB
tcp_in.c 81KB
stm32f4xx_hal_eth.c 79KB
tcp_out.c 75KB
stm32f4xx_hal_adc.c 75KB
dhcp.c 74KB
lcp.c 72KB
api_msg.c 67KB
stm32f4xx_hal_tim_ex.c 64KB
auth.c 63KB
ipcp.c 62KB
eap.c 61KB
ip6.c 53KB
dns.c 52KB
netif.c 51KB
stm32f4xx_hal_flash_ex.c 49KB
pbuf.c 49KB
stm32f4xx_ll_sdmmc.c 48KB
mqtt.c 48KB
ccp.c 47KB
ppp.c 47KB
etharp.c 45KB
cmsis_os2.c 43KB
api_lib.c 43KB
udp.c 43KB
stream_buffer.c 41KB
ipv6cp.c 41KB
stm32f4xx_hal_rcc.c 41KB
ip4.c 40KB
stm32f4xx_hal_adc_ex.c 40KB
pppol2tp.c 39KB
stm32f4xx_hal_dma.c 39KB
timers.c 39KB
pppoe.c 37KB
mem.c 34KB
lowpan6_common.c 33KB
chap_ms.c 32KB
ip6_frag.c 30KB
ip4_frag.c 30KB
pppos.c 29KB
port.c 29KB
lowpan6.c 28KB
dhcp6.c 27KB
igmp.c 27KB
event_groups.c 25KB
system_stm32f4xx.c 25KB
ccsbcs.c 24KB
stm32f4xx_hal_flash.c 24KB
stm32f4xx_hal_pwr_ex.c 22KB
ethernetif.c 22KB
utils.c 20KB
raw.c 20KB
fsm.c 19KB
vj.c 19KB
stm32f4xx_hal_pwr.c 19KB
tcpip.c 19KB
inet_chksum.c 19KB
bridgeif.c 19KB
stm32f4xx_hal.c 19KB
stm32f4xx_hal_gpio.c 19KB
chap-new.c 19KB
stm32f4xx_hal_cortex.c 18KB
mld6.c 18KB
sd_diskio.c 18KB
autoip.c 18KB
upap.c 17KB
slipif.c 16KB
init.c 16KB
altcp.c 16KB
stm32f4xx_hal_exti.c 15KB
sys_arch.c 14KB
icmp.c 14KB
icmp6.c 14KB
multilink.c 14KB
heap_4.c 14KB
lowpan6_ble.c 13KB
pppapi.c 13KB
netdb.c 13KB
altcp_tcp.c 13KB
demand.c 13KB
timeouts.c 13KB
croutine.c 13KB
mppe.c 12KB
memp.c 11KB
ethernet.c 11KB
tftp_server.c 11KB
netifapi.c 11KB
stm32f4xx_hal_dma_ex.c 10KB
magic.c 10KB
ip6_addr.c 10KB
共 404 条
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