89 lines
3.0 KiB
C
89 lines
3.0 KiB
C
/* add user code begin Header */
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/**
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**************************************************************************
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* @file wk_i2c.c
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* @brief work bench config program
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**************************************************************************
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* Copyright notice & Disclaimer
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*
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* The software Board Support Package (BSP) that is made available to
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* download from Artery official website is the copyrighted work of Artery.
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* Artery authorizes customers to use, copy, and distribute the BSP
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* software and its related documentation for the purpose of design and
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* development in conjunction with Artery microcontrollers. Use of the
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* software is governed by this copyright notice and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
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* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
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* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
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* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
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* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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*
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**************************************************************************
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*/
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/* add user code end Header */
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/* Includes ------------------------------------------------------------------*/
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#include "includes.h"
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/* add user code begin 0 */
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/* add user code end 0 */
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/**
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* @brief init i2c1 function.
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* @param none
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* @retval none
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*/
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void wk_i2c1_init(void)
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{
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/* add user code begin i2c1_init 0 */
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/* add user code end i2c1_init 0 */
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gpio_init_type gpio_init_struct;
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gpio_default_para_init(&gpio_init_struct);
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/* add user code begin i2c1_init 1 */
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/* add user code end i2c1_init 1 */
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/* configure the SCL pin */
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gpio_init_struct.gpio_out_type = GPIO_OUTPUT_OPEN_DRAIN;
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gpio_init_struct.gpio_pull = GPIO_PULL_UP; /* I2C 开漏总线需要上拉；若无外部上拉，用内部上拉顶替 */
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gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
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gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_MODERATE;
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gpio_init_struct.gpio_pins = GPIO_PINS_6;
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gpio_init(GPIOB, &gpio_init_struct);
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/* configure the SDA pin */
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gpio_init_struct.gpio_out_type = GPIO_OUTPUT_OPEN_DRAIN;
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gpio_init_struct.gpio_pull = GPIO_PULL_UP; /* I2C 开漏总线需要上拉；若无外部上拉，用内部上拉顶替 */
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gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
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gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_MODERATE;
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gpio_init_struct.gpio_pins = GPIO_PINS_7;
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gpio_init(GPIOB, &gpio_init_struct);
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i2c_init(I2C1, I2C_FSMODE_DUTY_2_1, 100000);
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i2c_own_address1_set(I2C1, I2C_ADDRESS_MODE_7BIT, 0x0);
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i2c_ack_enable(I2C1, TRUE);
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i2c_clock_stretch_enable(I2C1, TRUE);
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i2c_general_call_enable(I2C1, FALSE);
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/* add user code begin i2c1_init 2 */
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/* add user code end i2c1_init 2 */
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i2c_enable(I2C1, TRUE);
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/* add user code begin i2c1_init 3 */
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/* add user code end i2c1_init 3 */
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}
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/* add user code begin 1 */
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/* add user code end 1 */
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