Saving the state of HP41 CL to PC

[Sylvain Cote]

(12-29-2017 06:11 PM)PeterP Wrote:  Waiting for @Monte to tell us about the V5 board behavior regarding sector 1F8 as per @Angel's comment.
I was naively assuming upward compatibility (what works on V3 works on V5) which shows my ignorance when it comes to hardware. He probably also put it in the manual and I just cant find it / understand it...

After verification, 0x1FE & 0x1FF are still available for v3, v4 & v5.

Use the FLASH? function from the YUPS module to find what type of board you have.
Look at page 16 of the clupdate.pdf manual for board description.

If you have a v3/v4 board type 0x2257 or a v5 board, you need to do the following
1) copy Flash:0x1F8..0x1FF sector to RAM:0x810..0x817
2) copy RAM:0x800 to RAM:0x816
3) copy RAM:0x804 to RAM:0x817
4) erase the Flash:0x1F8..0x1FF sector
5) copy RAM:0x810..0x817 to Flash:0x1F8..0x1FF

If you have a v3/v4 board type 0x2256 then its simpler, you need to do the following
1) erase the Flash:0x1FE sector
2) copy RAM:0x800 to Flash:0x1FE
3) erase the Flash:0x1FF sector
4) copy RAM:0x804 to Flash:0x1FF

Best regards,

Sylvain

PS: I have not forgotten to reply to your last email, just missing time.