read data from function ‫‪0x04‬‬

[SaeedNowroozi]

I want to read data from address 1, function 4, address reg ‫‪0x0000‬‬, 1 number, but not any action.
float txf[8];
mmodbus_readInputRegisters32f(1, 0, 1, txf);

[sadra-fazeli]

Hello, I have the same problem. i used this function: bool mb_status = mmodbus_readHoldingRegisters16i(1, 0, 5, modbus_data); i saw mmodbus.rxBuf[] value on debuger. returned data from slave is store on mmodbus.rxBuf[] but i cant use it any where,. my modbus_data[32] all index are zero and also mb_status is false so what do we do?

[nimaltd]

I don't have any device to test it. but as I can remember, I tested it before. Please debug step by step and see what is happening in the function and tell me. thanks.

[sadra-fazeli]

I don't have any device to test it. but as I can remember, I tested it before. Please debug step by step and see what is happening in the function and tell me. thanks.

i forget to say my mcu is G030C8T6. i do some change. i can use mmodbus.rxBuf[] members only on library, for example i wrote a function to combine mmodbus.rxBuf[4] and mmodbus.rxBuf[5] and return data But when i define my array and use function in while loop all member of it is are zero.