Hello Xiaofan,

Chen Xiao Fan wrote:
> 
> One of them is with the original Wisp628 firmware (16F628A) and 
> I am using the Xwisp2 host program. It seems to me Xwisp2 supports
> lot of PICs including the commonly used 12F6xx, 16F62x/62xA, 
> 16F7x, 16F87x/87xA and lots of 18Fs (including 18Fxx20 and 4550
> but not 2550).

As author of Xwisp2 I'm afraid I must warn you that the latest version 
of Xwisp2 may _seem_ to support a number of PICs which are not really 
supported by the Wisp628 firmware. This applies to the 18F4550 and some 
others newer members of the 18F family. In short: Wouter's Wisp628 
firmware supports only those 18F's which are programmed 8 bytes at a 
time. This includes all older 18Fxxx and many of the newer 18Fxxxx, but 
not all. You need to consult the datasheets or simply try and check for 
verify errors.
Sorry for this somewhat misleading information with the XWisp2 1.5.3, 
will be corrected in version 1.6.0.

Regards, Rob.

-- 
Rob Hamerling, Vianen, NL phone +31-347-322822
homepage: http://www.robh.nl/
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