AM3352: AM3352 DDR 設定確認

Hi Sir

DDR設定問題, 我們使用gel 檔案調整的參數, 想要確定是否真的在CPU 跑起來後, 有設定到位
例如 #define  DDR_IOCTRL_VALUE           (0x18B)  
這行是設定driving, 對應的暫存器位置會是在哪?
#define  DDR_IOCTRL_VALUE           (0x18B)     //Registers tab: DDR_CMDx_IOCTRL   //******************************************************************
//EMIF parameters
//******************************************************************
#define ALLOPP_DDR3_READ_LATENCY    0x08       //Registers tab: DDR_PHY_CTRL_1      
#define ALLOPP_DDR3_SDRAM_TIMING1   0x0AAAD4DB //Registers tab: SDRAM_TIM_1   #define ALLOPP_DDR3_SDRAM_TIMING2   0x246B7FDA //Registers tab: SDRAM_TIM_2  
#define ALLOPP_DDR3_SDRAM_TIMING3   0x50FFE67F //Registers tab: SDRAM_TIM_3
#define ALLOPP_DDR3_SDRAM_CONFIG    0x61A05332  //Registers tab: SDRAM_CONFIG                                                   #define ALLOPP_DDR3_REF_CTRL        0x00000c30  //Registers tab: SDRAM_REF_CTRL
#define ALLOPP_DDR3_ZQ_CONFIG       0x50074BE1  //Registers tab: ZQ_CONFIG

謝謝

Daniel

Shine：

DDR_IOCTRL_VALUE这个值可以用来配置PHY寄存器，这些PHY寄存器请看TRM文档第1462页上Table 9-10. CONTROL_MODULE REGISTERS (continued)。ddr_cmd0_ioctrl ddr_cmd1_ioctrl ddr_cmd2_ioctrl ddr_data0_ioctrl ddr_data1_ioctrl https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf另外，EMIF tool里的gel文件有配置这些寄存器，可以参考一下。The spreadsheet discussed in this application report can be downloaded from this link.https://www.ti.com/lit/an/sprack4/sprack4.pdf