I'm performing an i2c communication between OM-SE050ARD (SE) and STM32F030R8 Nucleo (Master). I'm able to get the response. But whenever I perform an operation (say "Get_Version" or "Digest_OneShot"), I only get the Header part and the CRC as response. The actu...
我使用STM32来访问I2C接口的铁电存储器，FM24CL16，2K字节，比访问EEPROM要方便一点，所以简单修改了一...
Solved: I have STM32G070KB MCU connected with M24SR02-Y via I2C and GPO. I have no problem to write some NDEF message through I2C and then read it
*/voidi2c_Stop(void){SCL_LOW();SDA_LOW();/* ensure data is low first */__delay_us(I2C_TM_DATA_SU);SCL_HIGH();/* float clock high */__delay_us(I2C_TM_STOP_SU);SDA_HIGH();/* the low->high data transistion */return;}/* * Check for an acknowledge * - returns ack or ~...
近期在研究I2C从机,在STM32CubeMX的I2C从机配置中有一个Clock No Stretch Mode(禁止时钟拉伸模式)。不太理解这个选项的作用,上网搜索+实际验证了一番之后,有了一些心得,就记录下来,以备后查。 先放一个I2C的通讯时序图和官网参考 通讯时序图 官网参考: ...
STM32芯片IIC接口引脚的确定 通过查阅《High-density performance line Arm®-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces》数据手册，STM32F103VET6有两个I2C接口。从表中可以看到STM32F103VET6芯片I2C1的SCL时钟为92脚PB6，I2C1的SDA时钟为93脚PB...
STM32芯片IIC接口引脚的确定 通过查阅《High-density performance line Arm®-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces》数据手册,STM32F103VET6有两个I2C接口。 从表中可以看到STM32F103VET6芯片I2C1的SCL时钟为92脚PB6,I2C1的SDA时钟为93脚PB...
STM32芯片IIC接口引脚的确定 通过查阅《High-density performance line Arm®-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces》数据手册,STM32F103VET6有两个I2C接口。 从表中可以看到STM32F103VET6芯片I2C1的SCL时钟为92脚PB6,I2C1的SDA时钟为93脚PB...
STM32F105 硬件I2C从机发送，主机的时钟是400K,使用官方的代码，主机读时，第一个字节发送无效，一直...
STM32系列芯片I2C源代码