70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#include "system/includes.h"
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#include "asm/uart_dev.h"
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#include "system/event.h"
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#if 1
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static uart_bus_t *uart_bus0;
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static u8 uart_cbuf0[256] __attribute__((aligned(4)));
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static u8 uart_rxbuf0[256] __attribute__((aligned(4)));
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extern void usr_uart_data_recieve(u8* data,u16 len);
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void usr_uart_send_cmd(u8* data,u16 len)
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{
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//if(uart_bus0)uart_bus0->write(data,len);
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}
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static void uart_u_task0(void *arg)
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{
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int ret;
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u32 uart_rxcnt0 = 0;
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printf("uart_u_task start\n");
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while (1) {
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//uart_bus0->read()在尚未收到串口数据时会pend信号量，挂起task，直到UART_RX_PND或UART_RX_OT_PND中断发生，post信号量，唤醒task
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uart_rxcnt0 = uart_bus0->read(uart_rxbuf0, sizeof(uart_rxbuf0), 0);
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if (uart_rxcnt0)
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{
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//printf("uart_rx = ");
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//printf_buf(uart_rxbuf,uart_rxcnt0);
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//usr_uart_send_cmd(uart_rxbuf,uart_rxcnt0);
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usr_uart_data_recieve(uart_rxbuf0,uart_rxcnt0);
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}
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}
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}
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static void uart_isr_hook0(void *arg, u32 status)
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{
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//当CONFIG_UARTx_ENABLE_TX_DMA（x = 0, 1）为1时，不要在中断里面调用ubus->write()，因为中断不能pend信号量
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if (status == UT_RX) {
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// printf("uart_rx_isr\n");
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}
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if (status == UT_RX_OT) {
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// printf("uart_rx_ot_isr\n");
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}
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}
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void uart_dev_main_init0()
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{
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struct uart_platform_data_t u_arg = {0};
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u_arg.tx_pin = IO_PORTB_06;
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u_arg.rx_pin = IO_PORTB_07;
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u_arg.rx_cbuf = uart_cbuf0;
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u_arg.rx_cbuf_size = 256;
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u_arg.frame_length = 256;
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u_arg.rx_timeout = 100;
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u_arg.isr_cbfun = uart_isr_hook0;
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u_arg.baud = 9600;
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u_arg.is_9bit = 0;
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uart_bus0 = uart_dev_open(&u_arg);
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if (uart_bus0 != NULL)
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{
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printf("uart_dev_open2() success\n");
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os_task_create(uart_u_task0, (void *)uart_bus0, 31, 2048, 0, "uart_cmd_task");
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}
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// usr_uart_send_cmd(' ',1);
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}
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#endif
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