example:1.内存到内存, DMA传输请求一直有效 2.内存到串口, DMA传输请求一直有效 一种解释: 存储器...
HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi21, uint16_t DevAddress, uint8_t *pData, uint16_...
I2C_GenerateSTART(I2C1, ENABLE); /* Test on I2C1 EV5, Start trnsmitted successfully and clear it */ timeout = I2C_TIMEOUT_MAX; /* Initialize timeout value */ while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT)) { /* If the timeout delay is exeeded, exit with error code...
使用HAL_I2C_Mem_Write等于先使用HAL_I2C_Master_Transmit传输第一个寄存器地址,再用HAL_I2C_Master_Transmit传输写入第一个寄存器的数据。可以传输多个数据 代码语言:javascript 复制 voidSingle_WriteI2C(uint8_t REG_Address,uint8_t REG_data){uint8_t TxData[2]={REG_Address,REG_data};while(HAL_I2C_Mas...
master_xfer 函数。最后通过 i2c_add_numbered_adapter或 i2c_add_adapter 这两个函数向系统注册i2c_...
HAL_StatusTypeDef res = HAL_I2C_Mem_Write(hi2c, DevAddress, mem_addr, I2C_MEMADD_SIZE_16BIT, &vals[incr], block_portion, 100); mem_addr += block_portion; write_remaining -= block_portion; incr += block_portion; HAL_Delay(1); } } Here is an example of a...
stm32_i2c_master_mode_end(dev); k_sem_take(&data->device_sync_sem, K_FOREVER); is_timeout = true; } ... but the semaphore isn't timing out?! In fact, the semaphore believes nobody is waiting: (gdb) print i2c_stm32_dev_data_0.device_sync_sem ...
We know that the I2C is a synchronous communication, so both the master and slave should be doing the same thing at the same time. For example, if the slave is sending the 4th bit of the data, then the master should also be looking for the 4th bit of the data. ...
HID over I2C demonstration This project demonstrates how HID over I2C can be used as a flexible protocol between a Linux SoC and an STM32 MCU. When enumerated by the kernel, the MCU will be treated as 3 separate virtual devices: a keyboard, a mouse and a raw HID device. The number and...
for STM32 devices.If users want to see energy profiles and visualize the current draw, they must use STM32CubeMonitor-Power. However, STM32CubeProgrammer will serve as an interface for all debug features. It can also work with all the probe’s interfaces, such as SPI, UART, I2C, and ...