devc-sermx1

Serial driver for the i.MX 8 boards.

Syntax:

devc-sermx1 [options] [port[,irq]]
     Options:
            [-b number]
            [-c clock[/div]]
            [-C size]
            [-e] [-E]
            [-f] [-F]
            [-I size]
            [-o opt[,opt...]
            [-O number]
            [-s] [-S]
            [-t level]
            [-T level]
            [-u serial_unit_num]
            [-v verbosity]

where port_num is the adddress of the port and irq_num is the interrupt request number.

Runs on:

QNX OS

Options:

This driver supports generic devc-ser* options. For information about those options, see devc-ser* in the QNX OS Utilities Reference guide in the QNX Software Development Platform 8.0 documentation.
Note:
The hardware platforms for this BSP don't have a System Memory Management Unit (SMMU) and hence the smmu option isn't supported..
In addition to the generic devc-ser* options, this driver supports the following options:
-c clk[/div]
Set the input clock rate. The default is 96000000.
-t level
Set the receive FIFO trigger level using a value from 0 to 32. The SCIF default is 24.
-T level
Set the number of characters to transmit FIFO using a value from 2 to 32. The default is 32.
-u serial_unit_num
Set serial unit number. The default is 1.

Examples:

  • Disable HW and SW flow control for an UART device with base address 0x30890000 and IRQ 59. 
    devc-sermx1 -e -F -S -u 1 0x30890000,59
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