I am developing a fuel dispenser and it consists of five boards and the main control of the dispenser is CPU board and the fuel dispensing pulses comes from PULSER board and all the data input comes from KEYPAD board. All the boards are maintained a...
Hi, I am having data transfer problem with Modbus only when I use a specific RS485 Converter .I am using STM32H750VB as my main IC for a fuel dispenser project. I am having a problem with my MODBUS based on the RS485 converter.i)If i am using...
Hi I am developing a dispenser. The dispenser has a CPU, Keypad, Pulsar and Display each board developed with STM32H750VB. In that I have done the coding for MODBUS in CPU. While the machine is IDLE the MODBUS works correctly and i am able to r...
I am developing a project using STM32H750VB and for automation purpose I am in need of MOD BUS protocol. I have referred the code in this weblink (https://github.com/srikanth977/ModbusRTUSlave_RS232 ). I have completed the code and its working fine ...
I am using STM32H750VB for my project. I am unable to configure parameters for MODBUS communication. When I activate Modbus communication using CUBE MX .I have attached the screenshot of the problem and also my cube version. I want to configure the b...
I have changed the receive function using an interrupt and also updated the priorities of the UART function. the coding looks to be stable now and its working till now. I just need a clarity in assigning the priority of the UARTS..__HAL_UART_ENABLE_I...
The baud rate of the MODBUS cannot be changed and I have explained that problem in this link kindly look into it and suggest whether there is any solution.https://community.st.com/s/question/0D53W00000x0XHMSA2/stm32h750vb-modbus-timer-calculation
Sorry for the late reply... I have done as u have said but the problem still exists. Kindly suggest if there is any availability of HAL library for MODBUS.
