![\"FV-1](\"http:\/\/www.muzique.com\/misc\/24lc32.gif\")
<\/p>\nThe FV-1 is a digital reverb chip from Spin Semiconductor. It has 8 internal reverb programs and the capacity to address 8 user-programmable settings contained in an external 24LC32 memory chip. This mod is designed to add another serial memory chip and expand the available user slots to 16.<\/p>\n
The FV-1 will be sending out a data stream that is addressing the external memory chip as 000 on the A0, A1 and A2 device select bits. These are pins 1, 2, and 3 of the 24LC32 serial memory chip.<\/p>\n
This means that you can add extra memory by using a toggle switch to bank-select the chips. For example, adding a second 24LC32 would give you 8 additional user-programmable memory slots, for a total of 16 in two banks of 8, selected by the toggle switch.<\/p>\n
I don’t think the FV-1 will realize that the bank has been changed so you may have to change program selection to make it read from the new chip.<\/p>\n
In the diagram below, IC2 is activated because its A0 pin is pulled to ground with the switch in the position shown.<\/p>\n
<\/p>\n
It is also possible to address multiple 24LC32 memory chips with a simple AVR chip as an address driver. It would then be easy to use a soft touch switch to page through several banks of memory chips, each with 8 user programs.<\/p>\n","protected":false},"excerpt":{"rendered":"
The FV-1 is a digital reverb chip from Spin Semiconductor. It has 8 internal reverb programs and the capacity to address 8 user-programmable settings contained in an external 24LC32 memory chip. This mod is designed to add another serial memory chip and expand the available user slots to 16. The FV-1 will be sending out […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-102","post","type-post","status-publish","format-standard","hentry","category-diy"],"yoast_head":"\n