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Re: How to read RWWEE section memory by ICD4 device: SAMC21N18A
#2
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我這邊實驗是讀得回來的
程式碼如下:
uint32_t TestWriteData[16];    
    
uint32_t TestReadData[16];
    
TestWriteData[0] = 0x12345678;
    
NVMCTRL_RWWEEPROM_PageWrite(TestWriteData, (uint32_t)nvm_rwwee_user_start_address);
    while(
NVMCTRL_IsBusy())
    {
        
rweee_pagewrite_flag++;
    }
    
printf("Value of Flag incremented while Page write is happening from RWWEE flash area = %ld rn"rweee_pagewrite_flag);

    
printf("Value of before Read %lXrn"TestReadData[0]);
    
NVMCTRL_RWWEEPROM_Read(TestReadData16, (uint32_t)nvm_rwwee_user_start_address);
    while(
NVMCTRL_IsBusy())
    {
        
rweee_read_flag++;
    }
    
printf("Value of Flag incremented while Page write is happening from RWWEE flash area = %ld rn"rweee_read_flag);
    
printf("Value of Read result %lXrn"TestReadData[0]);


縮圖

Attach file:



jpg  SAMC21_RWWEE.jpg (273.34 KB)
67979_64e8374db98dd.jpg 1046X404 px

發表於: 2023/8/25 13:08
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How to read RWWEE section memory by ICD4 device: SAMC21N18A
#1
新會員
新會員


查看用戶資訊
Dear Microchip Team,

參考\HarmonyFramework\csp_apps_sam_c20_c21\apps\nvmctrl\nvmctrl_flash_read_while_write中的範例做練習。
使用NVMCTRL_RWWEEPROM_PageWrite()做資料寫入後,
再用NVMCTRL_RWWEEPROM_Read()()讀取出來做確認,
實驗結果顯示讀取出來的資料與寫入的資料一致,代表應該有成功寫入。

但是用MPLAB + ICD4回讀資料並用Execution Memory查看0x0040_0000 (RWWEE start adress),
結果卻都顯示00,如附件圖檔所示。

請問RWWEE section的資料是否能用ICD4 + MPLAB X做回讀確認呢?

謝謝

Attach file:



jpg  RWWEE Question.JPG (303.87 KB)
78209_64d337d5b4b52.jpg 1034X1044 px

發表於: 2023/8/9 14:53
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