写出msp430f5529的DMA初始化函数且传输ADC采集数据到sample_data2100的函数

以下是msp430f5529的DMA初始化函数：

void DMA_init(void)
{
    // Enable DMA module
    DMACTL0 |= DMA0TSEL_24; // DMA0 Trigger Source: ADC12IFGx
    DMA0CTL &= ~DMAIFG;
    DMA0CTL = DMADT_0 | DMASRCINCR_0 | DMADSTINCR_3 | DMAEN; // Single transfer, source no increment, destination increment, enable DMA
    DMA0SZ = 2100; // Transfer size
    DMA0SA = (unsigned long) &ADC12MEM0; // Source address: ADC12MEM0
    DMA0DA = (unsigned long) sample_data; // Destination address: sample_data
}

以下是传输ADC采集数据到sample_data[2100]的函数：

void transfer_data(void)
{
    DMA0CTL |= DMAEN; // Enable DMA
    ADC12CTL0 |= ADC12ENC | ADC12SC; // Start ADC conversion
    while (!(DMA0CTL & DMAIFG)); // Wait for DMA transfer to complete
    DMA0CTL &= ~DMAIFG; // Clear DMA interrupt flag
    DMA0CTL &= ~DMAEN; // Disable DMA
}

注意：在使用DMA传输数据时，需要先启用ADC转换。在本例中，ADC转换通过设置ADC12CTL0寄存器的ADC12ENC和ADC12SC位来启用。同时，在DMA传输完成后，需要清除DMA中断标志并禁用DMA