Differences

This shows you the differences between two versions of the page.

--- boards:sbc:sbc_v2:sbc_v2-005 [2020/12/05 21:27]
b1ackmai1er [Boot ROM Installation]
+++ boards:sbc:sbc_v2:sbc_v2-005 [2021/03/29 07:00] (current)
b1ackmai1er [SBC V2-005 MEGAFLASH]
@@ Line 3: / Line 3: @@
 The SBC V2 is a Zilog Z80 processor board. It's a 100x160mm board that is capable of functioning both as a standalone SBC or as attached to the ECB bus.
-The SBC V2-005 is currently under development. See [[:boards:sbc:sbc_v2:sbc_v2-005:development|here ]]for the current status.
+The main advantage of this version over previous versions is the support of 1Mb FLASH memory and improved software support for Flash access.
+The SBC V2-005 is transitioning from development to release. Development history and additional supporting information can be found [[:boards:sbc:sbc_v2:sbc_v2-005:development|here ]]
@@ Line 58: / Line 60: @@
 Kicad files can be found [[https://github.com/b1ackmai1er/SBC-V2-005|here]] but may not be the most recent.
-Gerbers for SBC V2-005c {{:boards:sbc:sbc_v2:sbc_v2-005:sbc_v2-005c-gerbers.zip|here.}}
+Gerbers for SBC V2-005c, which have been built and tested. {{:boards:sbc:sbc_v2:sbc_v2-005:sbc_v2-005c-gerbers.zip|here.}}
-Current revision is SBC V2-005f
+Current revision is SBC V2-005i
+Gerbers for SBC V2-005i, currently untested {{:boards:sbc:sbc_v2:sbc_v2-005:sbc_v2-005i-gerbers.zip|here.}}
+Version i boards are on order as at 27-Feb-2021.
@@ Line 69: / Line 75: @@
   * Removes support for 128Mb RAM
   * Adds switch for recovery mode.
+  * Software support for programming dual chips.
+  * Driver support for accessing ROM drive as a read and write filesystem.
+  * ROMWBW based Flash upgrader.
+  * Solder link for UART clock as CPU clock for minimalist system.
@@ Line 273: / Line 283: @@
 ====== Flash Programming ======
-Will Sowerbutts has updated his FLASH4 program to support programming one or more flash chips. The updated Flash4 can be found in Will Sowerbutts github repository [[https://github.com/willsowerbutts/flash4|https://github.com/willsowerbutts/flash4]] and is also included in the current [[https://github.com/wwarthen/RomWBW/archive/dev.zip|development release]] of ROMWBW. As the RAM disk on the SBC V2 is only 384Kb, the ROM image to be programmed must reside on an alternate storage device such an IDE flash card.
+Will Sowerbutts has updated his FLASH4 program to support programming one or more flash chips. The updated Flash4 can be found in Will Sowerbutts github repository [[https://github.com/willsowerbutts/flash4|https://github.com/willsowerbutts/flash4]] and is also included in the current [[https://github.com/wwarthen/RomWBW/archive/dev.zip|development release]] of ROMWBW. As the RAM disk on the SBC V2 is smaller then 512Kb, the ROM image to be programmed must reside on an alternate storage device such an IDE flash card.
-An example command line to update ROMWBW would be ''flash write mega512.rom ''
-''flash'' will not proceed when it detects a size mismatch with the currently installed ROMWBW. To override this, use the command line switch ''/1'' or ''/2'' to force writing of a 512Kb or 1024Kb ROM respectively.
+An example command line to update ROMWBW would be ''b:flash write std512.rom /1'' or ''b:flash write cust1024.rom /2'' for a 512Kb or 1024Kb ROM respectively.
 ====== Acknowledgement ======
-The SBC V2-005 is based on the work of Andrew Lynch N8VEM and others in the Retrobrew Computers community. To see Andrew foundation work, see [[https://retrobrewcomputers.org/n8vem-pbwiki-archive/0/35860613/46935481/4200858/index.htm|here.]]
+The SBC V2-005 is based on the work of Andrew Lynch N8VEM and others in the Retrobrew Computers community. To see Andrew's foundation work, see [[https://retrobrewcomputers.org/n8vem-pbwiki-archive/0/35860613/46935481/4200858/index.htm|here.]]
 Thank you Andrew!