AN2675

IAP using TFTP

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Figure 10.

DHCP Server configuration

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The IAP application has to request an IP address from the DHCP pool. Enter the IP

pool starting address and the number of available addresses in the pool. The sample

above offers IP addresses from 192.168.0.01 up to and including 192.168.0.07.

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The boot file is the name of the raw binary image of the application you want to upload

to the STR912 Flash memory.

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There's no need to specify a WINS/DNS server address or default router unless your

IAP application requires direct Internet access. Make sure that the network mask and

the IP pool addresses fit your local network configuration.

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Additional Option is used to define the size of the file to download. For this put 13 in the

first blank that is the number of the size file option and insert the size of the file in term

of 512 bytes in the second, i.e. if the file size is 4 Kbytes you will put 8.

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Finally press Save to let TFTPD32 store the values in the Windows registry and select

the TFTP Server tab to return to the initial window.

2.4.3

How to start IAP operation

At reset, the position of the joystick button selects if IAP operation is started or not:

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If the joystick button is pressed in, the IAP starts.

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Else, the system jumps to the user application stored in Bank0.

To use the IAP driver efficiently, please use the following procedure: