I have finally received my CT, and I was able to test the UARTs. Remember this is really confusing. All devices are available, but you need to check the "dmesg" to really know what is what. For example, for Uart7, it is mapped as "/dev/ttyS4". Hopefully this helps. Your FEX for UART7 is correct ( for a CB3 or Cubietruck ).
root@linaro-ubuntu-desktop:/home/linaro# ls /dev/ttyS* /dev/ttyS0 /dev/ttyS1 /dev/ttyS2 /dev/ttyS3 /dev/ttyS4 /dev/ttyS5 /dev/ttyS6 /dev/ttyS7 root@linaro-ubuntu-desktop:/home/linaro# dmesg | grep uart [ 0.703682] [uart]: used uart info.: 0x9d [ 0.708366] [uart]: serial probe 0 irq 33 mapbase 0x01c28000 [ 0.734798] sunxi-uart.0: ttyS0 at MMIO 0x1c28000 (irq = 33) is a U6_16550A [ 1.576576] [uart]: serial probe 2 irq 35 mapbase 0x01c28800 [ 1.608431] sunxi-uart.2: ttyS1 at MMIO 0x1c28800 (irq = 35) is a U6_16550A [ 1.620258] [uart]: serial probe 3 irq 36 mapbase 0x01c28c00 [ 1.652081] sunxi-uart.3: ttyS2 at MMIO 0x1c28c00 (irq = 36) is a U6_16550A [ 1.663921] [uart]: serial probe 4 irq 49 mapbase 0x01c29000 [ 1.695736] sunxi-uart.4: ttyS3 at MMIO 0x1c29000 (irq = 49) is a U6_16550A [ 1.707537] [uart]: serial probe 7 irq 52 mapbase 0x01c29c00 [ 1.739336] sunxi-uart.7: ttyS4 at MMIO 0x1c29c00 (irq = 52) is a U6_16550A R On Wednesday, January 29, 2014 5:39:51 PM UTC-6, almonito wrote: > > Im Trying to use Uart 6 and Uart7 on PI Ports > > I see a valid ttl signal on the Input pin of the Uarts Read Pin but I can > not read anything in linux > On uart7 I can send out data > On uart 6 I can neither send nor receive data (measured the ttl signals > with scope, no data showing up on writ, valid ttl signal on read) > > My UART Settings are: > > [uart_para0] > uart_used = 1 > uart_port = 0 > uart_type = 2 > uart_tx = port:PB22<2><1><default><default> > uart_rx = port:PB23<2><1><default><default> > > [uart_para1] > uart_used = 0 > uart_port = 1 > uart_type = 8 > uart_tx = port:PA10<4><1><default><default> > uart_rx = port:PA11<4><1><default><default> > uart_rts = port:PA12<4><1><default><default> > uart_cts = port:PA13<4><1><default><default> > uart_dtr = port:PA14<4><1><default><default> > uart_dsr = port:PA15<4><1><default><default> > uart_dcd = port:PA16<4><1><default><default> > uart_ring = port:PA17<4><1><default><default> > > [uart_para2] > uart_used = 1 > uart_port = 2 > uart_type = 4 > uart_tx = port:PI18<3><1><default><default> > uart_rx = port:PI19<3><1><default><default> > uart_rts = port:PI16<3><1><default><default> > uart_cts = port:PI17<3><1><default><default> > > [uart_para3] > uart_used = 0 > uart_port = 3 > uart_type = 4 > uart_tx = port:PH00<4><1><default><default> > uart_rx = port:PH01<4><1><default><default> > uart_rts = port:PH02<4><1><default><default> > uart_cts = port:PH03<4><1><default><default> > > [uart_para4] > uart_used = 0 > uart_port = 4 > uart_type = 2 > uart_tx = port:PH04<4><1><default><default> > uart_rx = port:PH05<4><1><default><default> > > [uart_para5] > uart_used = 0 > uart_port = 5 > uart_type = 2 > uart_tx = port:PH06<4><1><default><default> > uart_rx = port:PH07<4><1><default><default> > > [uart_para6] > uart_used = 1 > uart_port = 6 > uart_type = 2 > uart_tx = port:PI12<3><1><default><default> > uart_rx = port:PI13<3><1><default><default> > > [uart_para7] > uart_used = 1 > uart_port = 7 > uart_type = 2 > uart_tx = port:PI20<3><1><default><default> > uart_rx = port:PI21<3><1><default><default> > > > I verifies the Mux setting for the pins quite a few times (its function > 3), also I verified that the PA pins are configured as network and the PI > pins are not used anywhere else > > > Can someone verify that UART 6 and UART 7 is working on A10 and thee > Pin/settings are correct? > > Regards > > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
