uint8_t bsp_uart0_rx_buff[BS_UART0_CACHE_SIZE] = {0}; // 定义串口初始化标记位 0--未初始化 1--初始化完成 bool g_uart0_init = false; // 定义串口发送标记位 0--free闲 1--bus忙 bool g_uart0_send_lock = false; static bsp_uart_callback uart0_irq_rx_callback; // 定义串口...
#if BS_UART0_EN #define BSP_UART0_IRQ_HANDLER uart0_event_handle // 定义串口缓存区 uint8_t bsp_uart0_tx_buff[BS_UART0_CACHE_SIZE] = {0}; uint8_t bsp_uart0_rx_buff[BS_UART0_CACHE_SIZE] = {0}; // 定义串口初始化标记位 0--未初始化 1--初始化完成 bool g_uart0_init = ...
在 S5PV210中, UART提供了 4 对独立的异步串口I/O端口,有4个独立的通道,每个通道可以工作于DMA模式或者中断模式。其中,通道0有 256byte 的的发送FIFO和 256byte 的接收FIFO,通道1有64byte 的的发送FIFO和64byte的接收FIFO,而通道 2和3只有16byte 的的发送FIFO。 UART使用标准的TTL/CMCOS 逻辑电平来表示数据...
__IO uint32_t UserButtonStatus=0;/*set to 1 after User Button interrupt*//*Buffer used for transmission*/uint8_t aTxBuffer[]="***UART_TwoBoards communication based on DMA*** ***UART_TwoBoards communication based on DMA*** ***UART_TwoBoards communication based on DMA***";/*Buffer us...
&uart2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart2>; dma-names = "rx","tx"; uart-has-rtscts; linux,rs485-enabled-at-boot-time; rs485-term-gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>; status = "okay"; }; There also is a userspace daemon program started by systemd...
/* Enable the CPU Cache */ CPU_CACHE_Enable(); /* STM32F7xx HAL library initialization: - Configure the Flash ART accelerator - Systick timer is configured by default as source of time base, but user can eventually implement his proper time base source (a general purpose ...
[ 0.000000] Reserved memory: initialized node linux,cma, compatible id shared-dma-pool[ 0.000000] Memory policy: Data cache writealloc[ 0.000000] On node 0 totalpages: 131072[ 0.000000] free_area_init_node: node 0, pgdat 80cab180, node_mem_map 8bb57000[ 0.000000] Normal zone: 1024 pages...
0x164 ( PIN_INPUT_PULLDOWN | MUX_MODE7 ) /* (C18) eCAP0_in_PWM0_out.uart3_txd */ >; }; }; &uart3 { pinctrl-names = "default"; pinctrl-0 = <&uart3_pins>; pinctrl-1 = <&uart3_pins_sleep>; status = "okay";
clock-output-names = "dma"; linux,phandle = <0x5>; phandle = <0x5>; }; uart0 { #clock-cells = <0x0>; compatible = "allwinner,sunxi-periph-clock"; clock-output-names = "uart0"; linux,phandle = <0x8>; phandle = <0x8>; }; uart1 { #clock-cells = <0x0>; compatible = ...
[7:0] INTERRUPT SOURCE ENCODING PRIORITY BIT[N+2] BIT[N+1] x00 BIT[N] 0 None INTERRUPT SOURCE(S) 1 0 0 1 RXRDY and RX Line Status (logic OR of LSR[4:1]) 2 0 1 0 RXRDY Time-out 3 0 1 1 TXRDY, THR or TSR (auto RS485 mode) empty 4 1 0 0 MSR, RTS/CTS or DTR...