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The 2nd stage loader firmware is loaded automatically without the explicit intervention of the user. At this time, it is only possible with Windows OS |
In a an implicit two step recovery boot (see here) the user should (the necessary device driver is assumed already installed)
give the command to load the desired good firmware into FX2 microcontroller's external EEPROM using CyControl, CyConsole, OpenFutNet (Windows OS, all SW tools using CyAPI.lib or CyUSB.dll) ;
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The CyConsole's "Lg EEPROM" button, CyControl's EEPROM button and OpenFutNet's IIC button call the loadEEPROM() function. This function is used to program 64-Kbyte EEPROMs. When the button (CyConsole's Lg EEPROM button, CyControl's EEPROM button or OpenFutNet's IIC button) is clicked, the user is prompted to select a (.iic) file to load into the EEPROM. This button first downloads the Vend_Ax(_Fx2).bix file, then sends the 0xA9 vendor request to program the EEPROM. |
The CyConsole/CyControl/OpenFutNet program will load
(HIDDEN STEP 1) an intermediate good firmware supporting EEPROM programming (normally the 2nd stage bootloader Vend_Ax.hex ) in RAM;
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The CyConsole's "S EEPROM" button is used to program 256-byte EEPROMs. When this button is clicked, the user is prompted to select a (.iic) file to load into the EEPROM. This button first downloads the Vend_Ax(_Fx2).bix file, then sends the 0xA2 vendor request to program the EEPROM. This button should not be used. |
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Explicit two steps recovery boot could be carried out with both Windows and Linux OSes. |
In a an explicit two step recovery boot, the user should (the necessary device driver is assumed already installed):
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