FSHC之MCU接口部分理解

|_____________|       |_____|                                                                    |___________|

|                       |-----|AHB   |-------------------------------winc------------>|                    |

|                       |-----|  2     |------------------------------------rinc-------->|                    |

|  MCU               |<=>|FIFO  |<====================data=======>|                    |

|  AHB               |       |____ |                                                                      |   FIFO           |

|  interface         |                                                                                        |                    |

|                       |       |______|          |________|                                         |    wapper      |

|                       |       | AHB   |           |               |<---wfull--------------------|                    |

|                       |<=>|  to     |<===>|fshc_reg   |<----wdata------------------|                    |

|                       |       |  reg   |           |               |<-----rempty----------------|                    |

|  ___________ |       |_____|            |________|<------rdata-----------------|___________|

图：FSHC的MCU接口部分

1.如果对FSHC模式配置走AHB2REG模块。

比如：REG_FSHC_CMD_REG=0X32;

REG_FSHC_SEND_CTRL = 0X343;

REG_FSHC_MCU_ADRCMD_BIT_LEN =0X1D7;

2.对FLSH读写数据的访问走AHB2FIFO模块。

比如:while(i<512)

{

write_buf[i] = i;

i++;

}

REG_FSHC_SPDR_WR = *((unsigned long *)&write_buf[j]);

REG_FSHC_SPDR_WR = *((unsigned long *)&write_buf[j+4]);

REG_FSHC_SPDR_WR = *((unsigned long *)&write_buf[j+8]);

REG_FSHC_SPDR_WR = *((unsigned long *)&write_buf[j+12]);