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Linux/AM3352: Use of Rs-232 and NS16550 in uart communication

Part Number: AM3352

Tool/software: Linux

I am using AM3352 customized board in that , NS16550 IC usage and its location inside / outside the processor  ??

Use of RS-232 IC in UART communication ??

  • Hi,

    Sorry, I don't understand your question, could you elaborate? Latest u-boots actually use the NS16550 driver, see am335x_evm.h:
    /* NS16550 Configuration */
    #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* Base EVM has UART0 */
    #define CONFIG_SYS_NS16550_COM2 0x48022000 /* UART1 */
    #define CONFIG_SYS_NS16550_COM3 0x48024000 /* UART2 */
    #define CONFIG_SYS_NS16550_COM4 0x481a6000 /* UART3 */
    #define CONFIG_SYS_NS16550_COM5 0x481a8000 /* UART4 */
    #define CONFIG_SYS_NS16550_COM6 0x481aa000 /* UART5 */
    #define CONFIG_BAUDRATE 115200

    Best Regards,
    Yordan
  • Hi Yordan,

    My question is for uart communication we need to use UART IC NS16550, this one is implemented inside the processor or outside ??
    and we use RS-232 IC in UART communication, it's use ??