关于STM32 NetRadio源代码。

发布于 2009-11-18 15:17:06 浏览：9168 订阅该版

9 个回答

bernard 2009-11-18

这家伙很懒，什么也没写！

softwind 2009-11-18

这家伙很懒，什么也没写！

bernard 2009-11-18

这家伙很懒，什么也没写！

bernard 2009-11-18

这家伙很懒，什么也没写！

aozima 2009-11-18

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

aozima 2009-11-18

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

这是我改了的程序
此代码还是不完善的,但可以满足目前的应用

```

static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
    rt_uint8_t* ptr;
    rt_err_t err_code;
    struct stm32_serial_device* uart;

err_code = RT_EOK;
    ptr = (rt_uint8_t*)buffer;
    uart = (struct stm32_serial_device*)dev->private;

/* interrupt mode Tx */
    while ( size )
    {
        /* save on tx buffer */
        uart->int_tx->tx_buffer[uart->int_tx->save_index] = *ptr++;

-- size;

/* move to next position */
        uart->int_tx->save_index ++;

/* wrap save index */
        if (uart->int_tx->save_index >= UART_TX_BUFFER_SIZE)
        {
            uart->int_tx->save_index = 0;
        }

if (uart->int_tx->save_index  == uart->int_tx->write_index )
        {
            break;
        }

/* set error code */
        if (size > 0)
        {
            err_code = -RT_EFULL;
        }
    }
    
    //启动发送第一个数据
    serial_start_send((struct stm32_serial_device*)dev->private);

/* set error code */
    rt_set_errno(err_code);

return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
}

```

中断处理:

```

void USART1_IRQHandler(void)
{
    struct stm32_serial_device * uart = &uart1;

/* enter interrupt */
    rt_interrupt_enter();

if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
    {
    //接收处理
     }

if (USART_GetITStatus(USART1, USART_IT_TC) != RESET)
    {
        /* clear interrupt */
        USART_ClearITPendingBit(USART1, USART_IT_TC);

if (uart->int_tx->write_index != uart->int_tx->save_index)
        {
            uart->uart_device->DR =
                uart->int_tx->tx_buffer[uart->int_tx->write_index];
            uart->int_tx->write_index ++;
        }

if (uart->int_tx->write_index >= UART_TX_BUFFER_SIZE)
            uart->int_tx->write_index = 0;
    }

/* leave interrupt */
    rt_interrupt_leave();
    rt_hw_interrupt_thread_switch();
}

```