SneaKSz
Member
Hello all,
I have a strange problem with sending data from: Laptop->RS232->Master PIC-> I2C-> Slave PIC-> SPI->DAC.
I turn on the supply's for the master and slave and then send data from the laptop to master to the slave. The data send from the laptop to the master is sent back to check if its proper. That's the case , but the slave doesn"t always send data to the DAC.
When I switch off and than on the supplys for both PIC's ( master & slaves) a few times and send data the DAC receives his data.
I don't know what the problem can be, its like the slave is still resetted when the master sends its data. I see the I2C pulses coming on the pins of the slave.
The wires are all proper soldered, its just a problem with the voltage of the slave.
I think its hardware related but can't find the problem. The reset pins of both pics are connected with a 10K resistor to Vdd and both oscillators work.
Someone has an idea for this problem?
Kind regards
I have a strange problem with sending data from: Laptop->RS232->Master PIC-> I2C-> Slave PIC-> SPI->DAC.
I turn on the supply's for the master and slave and then send data from the laptop to master to the slave. The data send from the laptop to the master is sent back to check if its proper. That's the case , but the slave doesn"t always send data to the DAC.
When I switch off and than on the supplys for both PIC's ( master & slaves) a few times and send data the DAC receives his data.
I don't know what the problem can be, its like the slave is still resetted when the master sends its data. I see the I2C pulses coming on the pins of the slave.
The wires are all proper soldered, its just a problem with the voltage of the slave.
I think its hardware related but can't find the problem. The reset pins of both pics are connected with a 10K resistor to Vdd and both oscillators work.
Someone has an idea for this problem?
Kind regards