About JCai.2

JCai.2 · 2020-03-24

HI,1.When I was debugging mlx90615, I used smbus to communicate. The reading function was as follows:uint32_t I2C_Read_Cmd_Data (SMBUS_HandleTypeDef *hsmbus1, uint16_t chip, uint8_t *cmdBuffer, int32_t cmdBufferLen, uint8_t *dataBuffer, int32_t dataB...

JCai.2 · 2020-03-28

I have tried to modify the I2C clock frequency to 100K or 50K (according to the range setting given by the datasheet). The clock frequency of oscilloscope measurement SCL also conforms to the set value (50K or 100K), but the corresponding interval ti...

JCai.2 · 2020-03-26

Bob：Thank you very much�?I have rewritten my code with reference to AN4502, I have a question, refer to the chip manual, after SCL produces a drop edge, there must be at least 300ns, SDA can be changed, but my measurement result is only 240ns, how sh...

JCai.2 · 2020-03-25

1.When I was debugging mlx90615, I used smbus to communicate. The reading function was as follows:uint32_t I2C_Read_Cmd_Data (SMBUS_HandleTypeDef *hsmbus1, uint16_t chip, uint8_t *cmdBuffer, int32_t cmdBufferLen, uint8_t *dataBuffer, int32_t dataBuff...

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1.stm32l052 Smbus traffic has no ack 2.XferOptions parameter configuration

Re: HAL_SMBUS_Master_Transmit_IT XferOptions

Re: HAL_SMBUS_Master_Transmit_IT XferOptions

Re: HAL_SMBUS_Master_Transmit_IT XferOptions