On Mon, Oct 3, 2016 at 1:25 PM, Seth K <skint...@gmail.com> wrote: > I have made a bare metal "Hello World" program for the Netduino2. I have > pushed it here: > > https://github.com/skintigh/baremetal_netduino2 > > It should output "Test 1/4" to USART 1, "Test 2/4" to USART 2, "Test 3/4" > to USART 3 and "Test 4/4" to UART 4. > > What actually happens in QEMU is only the first string is output. That may > be a command line argument error on my part, so for a sanity check I put > printf statements in the function stm32f2xx_usart_write in > qemu/hw/char/stm32f2xx_usart.c and recompiled qemu. The result is text sent > to UART1 and UART4 make is to the function (though only 1 is output), while > writes to 2 and 3 simply disappear and never make it to that function. I > assumed all writes to UARTs would go to that function. > > Am I doing something dumb? Is this a bug? Any help would be greatly > appreciated.
Hello Seth, I haven't looked at the multiple UART problem in a while. It sounds like your command line arguments are incorrect. Have a look at this wiki page for details on what the serial options should look like: https://github.com/alistair23/qemu/wiki/Getting-Started If that doesn't work can you copypaste your command line arguments? Thanks, Alistair > > Thanks, > Seth
