各位大佬好!我是个新手,最近调试STM32 F746硬件I2C的从机模式,用CubeMX配置的PB8,PB9分别为SDA,SLC, 然后从机地址设置为30,I2C初始化如下
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x20404768;
hi2c1.Init.OwnAddress1 = 60;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
用arduino due做主机,寻址寻不到,实物接线图,上传了,我感觉应该没问题,不知道是什么原因...急求各位大佬指出我的错误
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Arduino Due 20 21作为I2C口自带有上拉电阻不用接,现在能通讯了,就是通讯一秒就挂了,我估计是因为我数据变量弄错从而导致爆了
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