HI everyone!
I am workinf with Silabs 8051F020, and I need to use the uart1 shift register mode (mode 0). Everything seems to work fine, except that when I try to read the SBUF1 register and load it to a software buffer, i don't get anything. I am debugging on software, and loading myself the sbuf1 reg with a byte (0x51), and when i set the interrupt flag, it recognises a reception, but when it gets to the point
buffer = SBUF1;
i get 0x00 on buffer. i also checked that SBUF1 is loaded by posing the mouse over it's name Any ideas will be appreciated
Thanks
what you say does make sense haha
I flag the interrupt because i want to check that what the ISR does is what i want it to do, and as i am not recieving anything i try that.
so what can i do to simulate incoming data? Which reg should I write so i can read it from the reciece buffer SBUF1?
Which reg should I write so i can read it from the reciece buffer SBUF1?
You should write to VTREG S1IN, I think. And you should have found that out by yourself when you read the documentation looking for this information.