User manual

Installation and Operation

23. Select the “WriteWiper0” script in the User SPI Scripts column and then click on

the Execute Script button.

24. Select the “ReadWiper0” script in the User SPI Scripts column and then click on

the Execute Script button.

25. Select the “DECRWiper0” script in the User SPI Scripts column and then click on

the Execute Script button three times.

26. Select the “ReadWiper0” script in the User SPI Scripts column and then click on

the Execute Script button. The Transaction window shows the scripts that were

executed and the current value of the Wiper 0 (see Figure 2-16).

27. In the Transaction window, click the Clear button.

28. On the PICkit Serial Analyzer command bar, click the Reset button.

29. Select the “WriteWiper0” script in the User SPI Scripts column and then click on

the Execute Script button.

30. Select the “ReadWiper0” script in the User SPI Scripts column and then click on

the Execute Script button.

31. Select the “INCRWiper0” script in the User SPI Scripts column and then click on

the Execute Script button three times.

32. Select the “ReadWiper0” script in the User SPI Scripts column and then click on

the Execute Script button. The Transaction window shows the scripts that were

executed and the current value of the Wiper 0 (see Figure 2-17).

33. You can repeat the sequence of writing values to the Wiper register, or by Writing

then Reading the values back.

FIGURE 2-12: MCP43XX Write Wiper 0 Script File - Updating Wiper Value.

NOTICE

If at any time during script execution, an error message is generated in the transaction

window, it is good practice to reset the PICkit Serial Analyzer (PKSA). The PKSA can be

reset using the “Reset” toolbar icon. Verify that subsequent script operations do not

generate errors.

Write Command to Wiper 0 Register (D8 = ‘1’)

Wiper 0 Data (D7:D0 = ‘FFh’)