TS-7250-V3 TS-SER2
Product Page | |
8-bit IO |
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The TS-SER2 provides two RS-232, RS-485 half duplex or full duplex (RS-422) ports and a parallel port.
Refer to the TS-SER2 manual for hardware documentation.
The parallel port is currently not supported on this platform.
The TS-ISO485 implements 16550A based UARTs which requires a kernel driver. Under Linux this requires a device tree change. See the Kernel compile section for more details about getting set up the compile the kernel.
This below example will set up the serial devices for a TS-ISO485 with JP 14 through JP18, COMB 6, and COMA 5 jumpers installed. Open the device tree at arch/arm/boot/dts/imx6ul-ts7250v3.dts. Add the highlighted section to the device tree and recompile.
pc104bus: fpgaisa@50 {
compatible = "technologic,pc104-bus";
reg = <0x50 0x4>;
ranges = <0 0 0x1000>;
reset-gpio = <&gpio3 7 0>;
#address-cells = <0x1>;
#size-cells = <0x1>;
status = "okay";
/* TS-SER2 COMA */
ts16550@2e8 {
compatible = "technologic,ts16550";
reg = <0x2e8 8>;
interrupt-parent = <&fpga_intc>;
interrupts = <14>;
status = "okay";
};
/* TS-SER2 COMB */
ts16550@3e8 {
compatible = "technologic,ts16550";
reg = <0x3e8 8>;
interrupt-parent = <&fpga_intc>;
interrupts = <15>;
status = "okay";
};
};
On the next boot check the "dmesg" output to verify it loaded:
root@tsimx6:~# dmesg | grep ts16550 [ 2.259413] ts16550 50004050.fpgaisa:ts16550@2e8: Adding 16550 UART ttyS0 [ 2.268166] ts16550 50004050.fpgaisa:ts16550@3e8: Adding 16550 UART ttyS1
Now that these are loaded:
Device | Description |
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/dev/ttyS0 | COMA |
/dev/ttyS1 | COMB |
In this mode COMA/COMB are full duplex RS-485 (RS-422). See the TS-ISO485 manual for mroe details on the HD jumpers to use half duplex.