Getting HAL_ERROR while using I2C in Fast mode pulse

[Advance_tech]

Hi All,

I trying to interface MAX6651 Device using I2C module using STM32F410C8U6 MCU.

Device address is 0x36 But when i'm using 

HAL_FMPI2C_IsDeviceReady(&hfmpi2c1, 0x36 , 2, 100); this API returning the value
HAL_ERROR.

Here are some snaps

 

Anybody look into it send some solutions

 

[Pierre_Paris]

Hello @Advance_tech,

Here some possible solution for your issue :

• First, can you check the trace scope SCL & SDA ? The slave most likely don't ACK the master (which wait until the end of timeout) and return your "HAL_FMPI2C_ERROR_TIMEOUT" error.
• What is your STM32F4xx HAL Drivers version ? I checked on the V1.8.0 and there are no such function HAL_FMPI2C_IsDeviceReady(). Please use the last software version and call HAL_I2C_IsDeviceReady().
• Maybe you are not writing at the good address ? Check your ADD value. 

• Also, Can you try to write in the component memory with HAL_I2C_Mem_Write() and then read it thanks to HAL_I2C_Mem_Read(). Choose any register existing in the doc.

Best Regards,

Pierre
 

[Advance_tech]

hello @Pierre_Paris

• We have checked the SDA and SCL signals in scope refer the attached pic.
• we cannot use HAL_I2C_IsDeviceReady(). because we are using FMPI2C In STM32F410C8U6
  only we can use HAL_FMPI2C_IsDeviceReady().
• we have connected the 10k to ADD pin so our address becomes the 3Eplease refer to waveform only serial clock coming but there is not serial data
  
• Is there any chance that IC's I2C peripheral not working???  
  
   

[Pierre_Paris]

Hello @Advance_tech,

• "Is there any chance that IC's I2C peripheral not working???  " : If you comply the absolute maximum ratings given in the Datasheet, it should work.
• Understood, have you respected the following initialization of the FMPI2C before using HAL_FMPI2C_IsDeviceReady() to check if target device is ready?
  • Enable the FMPI2Cx interface clock
  • FMPI2C pins configuration (Enable the clock for the FMPI2C GPIOs + Configure FMPI2C pins as alternate function open-drain)
  • NVIC configuration if you need to use interrupt process
  • DMA Configuration if you need to use DMA process
  •  Configure the Communication Clock Timing, Own Address1, Master Addressing mode, Dual Addressing mode, Own Address2, Own Address2 Mask, General call and Nostretch mode in the hfmpi2c Init structure.
  • Initialize the FMPI2C registers by calling the HAL_FMPI2C_Init(), configures also the low level Hardware (GPIO, CLOCK, NVIC...etc) by calling the customized HAL_FMPI2C_MspInit(&hfmpi2c) API.

• "Pease refer to waveform only serial clock coming but there is not serial data" : It seems that's the opposite but I don't understand this behavior. You can find here the errata sheet. Please read the I2C chapter.

Best Regards,

Pierre