started working on AtMega8515 module C1.

avr/devices/all/0BUILD

@@ -9,6 +9,7 @@
     hw_tn84.asm
     hw_tn85.asm
     hw_tn841.asm
+    hw_m8515.asm
     includes.asm
     main.asm
     modules.asm

avr/devices/all/defs.asm

@@ -40,7 +40,8 @@
 
 .equ EEPROM_OFFS_SEED                  = 10   ; 2 bytes
 
-.equ EEPROM_OFFS_REED_CONF             = 12   ; 1 byte (plus one byte reserved)
+.equ EEPROM_OFFS_OSCCAL_SLOW           = 12   ; 1 byte
+.equ EEPROM_OFFS_OSCCAL_FAST           = 13   ; 1 byte
 
 .equ EEPROM_OFFS_MAL_CONF_ONTIME       = 14 ; 2 bytes
 .equ EEPROM_OFFS_MAL_CONF_SRC1_ADDR    = 16 ; 1 byte

avr/devices/all/hw_m8515.asm

@@ -0,0 +1,151 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+; Hardware routine  for AtTiny 84 devices
+
+
+.cseg
+
+
+; ---------------------------------------------------------------------------
+; @routine systemInitHardware
+;
+
+systemInitHardware:
+  ; set all ports as inputs and enable internal pull-up resistors
+  ldi r16, 0xff
+  clr r17
+.ifdef PORTA
+  out DDRA, r17  ; all input
+  out PORTA, r16 ; enable pull-up on all
+.endif
+
+.ifdef PORTB
+  out DDRB, r17  ; all input
+  out PORTB, r16 ; enable pull-up on all
+.endif
+
+.ifdef PORTC
+  out DDRC, r17  ; all input
+  out PORTC, r16 ; enable pull-up on all
+.endif
+
+.ifdef PORTD
+  out DDRD, r17  ; all input
+  out PORTD, r16 ; enable pull-up on all
+.endif
+
+.ifdef PORTE
+  out DDRE, r17  ; all input
+  out PORTE, r16 ; enable pull-up on all
+.endif
+
+  ret
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @routine systemSetSpeed
+;
+
+systemSetSpeed:
+  ret
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @routine systemSleep
+;
+
+systemSleep:
+  ; only modify SE, SM2, SM1 and SM0
+  cli
+  M_IO_READ r16, MCUCR
+  cbr r16, (1<<SE) | (1<<SM2) | (1<<SM1)
+  M_IO_WRITE MCUCR, r16
+  M_IO_READ r16, EMCUCR
+  cbr r16, (1<<SM0)
+  M_IO_WRITE EMCUCR, r16
+  sei                        ; make sure interrupts really are enabled
+  M_IO_READ r16, MCUCR       ; enable sleep mode
+  sbr r16, (1<<SE)
+  M_IO_WRITE MCUCR, r16
+  sleep                      ; sleep, wait for interrupt
+  M_IO_READ r16, MCUCR       ; disable sleep mode
+  cbr r16, (1<<SE)
+  M_IO_WRITE MCUCR, r16
+  ret
+; @end
+
+
+
+
+
+; ---------------------------------------------------------------------------
+; @routine systemSetupTimer0
+;
+
+systemSetupTimer0:            ; setup timer for IRQ every 100ms
+  ldi r16, (1<<CS02) | (0<<CS01) | (1<<CS00) | (1<<WGM01) | (0<<WGM00)  ; Prescaler 1024, CTC mode
+  out TCCR0, r16
+
+;
+; Settings for clock 1Mhz (default)
+; use timer0 with OCR0A=98-1 (irq every 97.65625 millisecs), baseTimerModuleReloadValue 1
+;
+.if clock == 1000000
+  ; CMP-A interrupt about every 100ms
+  ldi r16, 98-1      ; (1,000,000/1024)/10 = 97.65625
+  out OCR0, r16
+
+  ldi r16, 1
+  sts baseTimerModuleReloadValue, r16
+  sts baseTimerModuleTickCounter, r16
+.endif
+
+;
+; Settings for clock 8Mhz
+; use timer0 with OCR0=78 (irq every 9.984 millisecs), baseTimerModuleReloadValue 10
+;
+.if clock == 8000000
+  ; CMP interrupt about every 10ms
+  ldi r16, 78-1
+  out OCR0, r16
+
+  ldi r16, 10
+  sts baseTimerModuleReloadValue, r16
+  sts baseTimerModuleTickCounter, r16
+.endif
+
+  ldi r16, (1<<OCF0)              ; clear pending interrupts
+.ifdef TIFR0
+  out TIFR0, r16
+.else
+  out TIFR, r16
+.endif
+  
+.ifdef TIMSK0
+  M_IO_READ r16, TIMSK0
+  sbr r16, (1<<OCIE0)        ; Timer/Counter0 Output Compare Match A Interrupt Enable
+  M_IO_WRITE TIMSK0, r16
+.else
+  M_IO_READ r16, TIMSK
+  sbr r16, (1<<OCIE0)        ; Timer/Counter0 Output Compare Match A Interrupt Enable
+  M_IO_WRITE TIMSK, r16
+.endif
+
+  sec
+  ret
+; @end
+
+
+
+