本帖最后由 逍遥暮色 于 2015-4-8 12:58 编辑
怎么用STM32F407通过DMA实现遥控器的解码啊？第一次弄这个，好多地方都不明白，请大家帮帮忙！还有就是解码后的数据怎么用啊？下面是解码代码：
void DMA1_Stream5_IRQHandler(void)
{
if(DMA_GetITStatus(DMA1_Stream5, DMA_IT_TCIF5))
{
DMA_ClearFlag(DMA1_Stream5, DMA_FLAG_TCIF5);
DMA_ClearITPendingBit(DMA1_Stream5, DMA_IT_TCIF5);
RC_Ctl.rc.ch0 = (sbus_rx_buffer[0]| (sbus_rx_buffer[1] << 8)) & 0x07ff; //!< Channel 0
RC_Ctl.rc.ch1 = ((sbus_rx_buffer[1] >> 3) | (sbus_rx_buffer[2] << 5)) & 0x07ff; //!< Channel 1
RC_Ctl.rc.ch2 = ((sbus_rx_buffer[2] >> 6) | (sbus_rx_buffer[3] << 2) | //!< Channel 2
(sbus_rx_buffer[4] << 10)) & 0x07ff;
RC_Ctl.rc.ch3 = ((sbus_rx_buffer[4] >> 1) | (sbus_rx_buffer[5] << 7)) & 0x07ff; //!< Channel 3
RC_Ctl.rc.s1 = ((sbus_rx_buffer[5] >> 4)& 0x000C) >> 2; //!< Switch left
RC_Ctl.rc.s2 = ((sbus_rx_buffer[5] >> 4)& 0x0003); //!< Switch right
9 / 9
RC_Ctl.mouse.x = sbus_rx_buffer[6] | (sbus_rx_buffer[7] << 8); //!< Mouse X axis
RC_Ctl.mouse.y = sbus_rx_buffer[8] | (sbus_rx_buffer[9] << 8); //!< Mouse Y axis
RC_Ctl.mouse.z = sbus_rx_buffer[10] | (sbus_rx_buffer[11] << 8); //!< Mouse Z axis
RC_Ctl.mouse.press_l = sbus_rx_buffer[12]; //!< Mouse Left Is Press ?
RC_Ctl.mouse.press_r = sbus_rx_buffer[13]; //!< Mouse Right Is Press ?
RC_Ctl.key.v = sbus_rx_buffer[14] | (sbus_rx_buffer[15] << 8); //!< KeyBoard value
} |
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