added inital support for 16f1847

git-svn-id: https://svn.spreadspace.org/pic/trunk@75 a09c6847-51d9-44de-8ef2-e725cf50f3c7

1 files changed, 110 insertions, 0 deletions

diff --git a/bootloader/bootloader-947.asm b/bootloader/bootloader-947.asm
new file mode 100644
index 0000000..4a1747e
--- /dev/null
+++ b/bootloader/bootloader-947.asm
@@ -0,0 +1,110 @@
+  ;;
+  ;;  spreadspace pic utils
+  ;;
+  ;;
+  ;;  Copyright (C) 2011 Christian Pointner <equinox@spreadspace.org>
+  ;;
+  ;;  This file is part of spreadspace pic utils.
+  ;;
+  ;;  spreadspace pic utils is free software: you can redistribute it and/or modify
+  ;;  it under the terms of the GNU General Public License as published by
+  ;;  the Free Software Foundation, either version 3 of the License, or
+  ;;  any later version.
+  ;;
+  ;;  spreadspace pic utils is distributed in the hope that it will be useful,
+  ;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ;;  GNU General Public License for more details.
+  ;;
+  ;;  You should have received a copy of the GNU General Public License
+  ;;  along with spreadspace pic utils. If not, see <http://www.gnu.org/licenses/>.
+  ;;
+  ;; -------------------------------------
+  ;; PREAMBLE
+
+  LIST      p=16F1847
+  include   "p16f1847.inc"
+  __config  _CONFIG1,  _FOSC_INTOSC & _WDTE_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _CPD_OFF & _BOREN_OFF & _CLKOUTEN_OFF & _IESO_OFF & _FCMEN_OFF
+  __config  _CONFIG2,  _WRT_BOOT & _PLLEN_OFF & _STVREN_OFF & _BORV_LO & _LVP_OFF
+
+  ;; -------------------------------------
+  ;; DEFINES (chip/com specific)
+#define BOOTPIN           PORTC,7
+USERVECT        EQU       H'200'
+ISRVECT         EQU       USERVECT + H'4'
+FLASH_BOUNDARY  EQU       b'00011111' ; flash write boundary is at 32 bytes boundaries
+
+VERSION_MAJ     EQU       .0
+VERSION_MIN     EQU       .1
+NAME_0          EQU       '9'
+NAME_1          EQU       '4'
+NAME_2          EQU       '7'
+DEVID_L         EQU       H'82'
+DEVID_H         EQU       H'14'
+FLASH_SIZE_L    EQU       H'00'
+FLASH_SIZE_H    EQU       H'20'       ; 0x2000 -> 8192 Words of Flash
+FSS             EQU       .32         ; there 32 write latches
+EEPROM_SIZE_L   EQU       H'00'
+EEPROM_SIZE_H   EQU       H'01'       ; 0x0100 -> 256 Bytes of EEPROM
+MESS            EQU       .64         ; this limit is because of to combuff size and single byte len field for messages
+SUPPORTED_H     EQU       .0
+SUPPORTED_L     EQU       b'00000110' ; only read/write flash is supported by now
+
+#define HOOK_CMD_RESET    cmd_not_impl
+#define HOOK_CMD_R_FLASH  cmd_r_flash
+#define HOOK_CMD_W_FLASH  cmd_w_flash
+#define HOOK_CMD_R_EEPROM cmd_not_impl
+#define HOOK_CMD_W_EEPROM cmd_not_impl
+#define HOOK_CMD_R_CONFIG cmd_not_impl
+#define HOOK_CMD_W_CONFIG cmd_not_impl
+
+  ;; Variables
+combuff         EQU       H'0020'
+current_cmdlen  EQU       H'0070'
+csum            EQU       H'0071'
+flags           EQU       H'007D'
+cnt             EQU       H'007F'
+
+  ;; for compatibility with older MCUs
+#define         FSR       FSR0L
+#define         INDF      INDF0
+
+  ;; -------------------------------------
+  ;; DEFINES (defines)
+#include "generic-defines.inc"
+
+  ;; -------------------------------------
+  ;; Bootloader init
+#include "generic-init.inc"
+
+  ;; -------------------------------------
+  ;; Bootloader (com specific subroutines and init)
+#include "com-16f1847-uart.inc"
+
+  ;; -------------------------------------
+  ;; Bootloader (generic init/body)
+#include "generic-mainloop.inc"
+
+  ;; -------------------------------------
+  ;;  chip specific commands
+#include "cmds-16f1847.inc"
+
+  ;; -------------------------------------
+  ;; -------------------------------------
+  ;; dummy user code
+  org       USERVECT
+  movlb     .1
+  movlw     b'11111110'
+  movwf     TRISB
+  movlb     .0
+userloop
+  call      com_rx_byte
+  call      com_tx_byte
+  movlw     b'00000001'
+  xorwf     PORTB,f
+  goto      userloop
+  ;; goto      USERVECT
+
+  ;; -------------------------------------
+  ;; END
+  end