RCZ80 skz Config Tweaks

The watchdog I/O port for RCZ80_skz_std was misconfigured.

ReadMe.md

@@ -7,7 +7,7 @@
 **RomWBW Introduction** \
 Version 3.5 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-27 Jan 2025
+30 Jan 2025
 
 # Overview
 

ReadMe.txt

@@ -1,6 +1,6 @@
 RomWBW Introduction
 Wayne Warthen (wwarthen@gmail.com)
-27 Jan 2025
+30 Jan 2025
 
 
 

Source/Doc/Hardware.md

@@ -831,6 +831,9 @@ program the image into the first 512KB of the ROM for now.
 #### Notes:
 
 - CPU speed will be dynamically measured at startup if DSRTC is present
+- When disabled, watchdog requires /IM to be pulsed.  If an RCBus module
+  holds the CPU in WAIT for more than this, the watchdog will fire when
+  disabled with random consequences.  The Pico SD does this at power-on.
 
 `\clearpage`{=latex}
 

Source/HBIOS/Config/RCZ80_easy_std.asm

@@ -56,13 +56,12 @@ AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
 ;
 CPUOSC		.SET	10000000	; CPU OSC FREQ IN MHZ
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
 ;
 CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
 CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
 CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
 CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
-WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
 ;
 FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
 FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES

Source/HBIOS/cfg_RCZ80.asm

@@ -100,7 +100,7 @@ SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
 SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
 ;
 WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
 ;
 FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
 FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS

Source/HBIOS/hbios.asm

@@ -2609,7 +2609,7 @@ HB_CPU3:
 ; SK Z80-512K CLOCK INITIALIZATION
 ;--------------------------------------------------------------------------------------------------
 ;
-#IF (SKZENABLE)
+#IF ((SKZENABLE) | (WDOGMODE != WDOG_NONE))
 ;
 ;;; LOCATION OF THIS CODE???
 ;