参照了别的Hercules MCU的例子,写了一个demo,不起作用,不知道问题在哪!
/* USER CODE BEGIN (0) */ /* USER CODE END */ /* Include Files */ #include "sys_common.h"
/* USER CODE BEGIN (1) */ #include <mibspi.h> #include <sys_dma.h> /* USER CODE END */ /** @fn void main(void) * @brief Application main function * @note This function is empty by default. * * This function is called after startup. * The user can use this function to implement the application. */ /* USER CODE BEGIN (2) */ #define D_SIZE 64 uint16 tx_data[D_SIZE] = {0}; uint16 rx_data[D_SIZE] = {0}; g_dmaCTRL g_dmaCTRL_tx; g_dmaCTRL g_dmaCTRL_rx; /* USER CODE END */ int main(void) { /* USER CODE BEGIN (3) */ sint32 i; for (i = 0; i < D_SIZE; i++) { tx_data[i] = i; } mibspiInit(); mibspiEnableLoopback(mibspiREG1, Analog_Lbk); dmaEnable(); //mibspiSetData(mibspiREG1, 0, tx_data); dmaReqAssign(DMA_CH0, 1u); g_dmaCTRL_tx.SADD = (uint32)(&tx_data); g_dmaCTRL_tx.DADD = (uint32)(&(mibspiRAM1->tx[0])); g_dmaCTRL_tx.CHCTRL = DMA_CH0; g_dmaCTRL_tx.FRCNT = 1u; g_dmaCTRL_tx.ELCNT = D_SIZE; g_dmaCTRL_tx.ELDOFFSET = 4u; g_dmaCTRL_tx.ELSOFFSET = 0u; g_dmaCTRL_tx.FRDOFFSET = 0u; g_dmaCTRL_tx.FRSOFFSET = 0u; g_dmaCTRL_tx.PORTASGN = 4u; g_dmaCTRL_tx.RDSIZE = ACCESS_16_BIT; g_dmaCTRL_tx.WRSIZE = ACCESS_16_BIT; g_dmaCTRL_tx.TTYPE = FRAME_TRANSFER; g_dmaCTRL_tx.ADDMODERD = ADDR_INC1; g_dmaCTRL_tx.ADDMODEWR = ADDR_OFFSET; g_dmaCTRL_tx.AUTOINIT = AUTOINIT_ON; dmaSetCtrlPacket(DMA_CH0, g_dmaCTRL_tx); dmaSetChEnable(DMA_CH0, DMA_HW); mibspiREG1->DMACTRL[0] |= (((1 << 4) | 0) << 16); mibspiREG1->DMACTRL[0] |= 0x8000C000u; mibspiREG1->DMACTRL[0] |= (0 << 8) |(0 << 24); mibspiTransfer(mibspiREG1,0 ); while (!(mibspiIsTransferComplete(mibspiREG1,0))) {} mibspiGetData(mibspiREG1, 0, rx_data); while (true) {} /* USER CODE END */ //return 0; }