/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
+static void MX_DMA_Init(void);
static void MX_I2C1_Init(void);
static void MX_I2C2_Init(void);
static void MX_USB_PCD_Init(void);
/* Initialize all configured peripherals */
MX_GPIO_Init();
+ MX_DMA_Init();
// A hack to let USB host reset us
LL_GPIO_InitTypeDef gpio;
/* Peripheral clock enable */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
+ /* I2C1 DMA Init */
+
+ /* I2C1_RX Init */
+ LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_7, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
+
+ LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PRIORITY_LOW);
+
+ LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MODE_NORMAL);
+
+ LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PERIPH_NOINCREMENT);
+
+ LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MEMORY_INCREMENT);
+
+ LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PDATAALIGN_BYTE);
+
+ LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MDATAALIGN_BYTE);
+
+ /* I2C1_TX Init */
+ LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_6, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
+
+ LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PRIORITY_LOW);
+
+ LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MODE_NORMAL);
+
+ LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PERIPH_NOINCREMENT);
+
+ LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MEMORY_INCREMENT);
+
+ LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PDATAALIGN_BYTE);
+
+ LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MDATAALIGN_BYTE);
+
/**I2C Initialization
*/
I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
- I2C_InitStruct.ClockSpeed = 100000;
+ I2C_InitStruct.ClockSpeed = 400000;
I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
I2C_InitStruct.OwnAddress1 = 0;
I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
}
+/**
+ * Enable DMA controller clock
+ */
+static void MX_DMA_Init(void)
+{
+ /* Init with LL driver */
+ /* DMA controller clock enable */
+ LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
+
+ /* DMA interrupt init */
+ /* DMA1_Channel6_IRQn interrupt configuration */
+ NVIC_SetPriority(DMA1_Channel6_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
+ NVIC_EnableIRQ(DMA1_Channel6_IRQn);
+ /* DMA1_Channel7_IRQn interrupt configuration */
+ NVIC_SetPriority(DMA1_Channel7_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
+ NVIC_EnableIRQ(DMA1_Channel7_IRQn);
+
+}
+
/** Configure pins as
* Analog
* Input