AN2156 Freescale Semiconductor / Motorola, AN2156 Datasheet - Page 58

• Manufacturer Part Number: AN2156
• Description: Programming and Erasing FLASH and EEPROM Memories on the MC68HC908AS60A/AZ60A
• Manufacturer: Freescale Semiconductor / Motorola

Application Note
* Current Revision Release Date: 6/21/2001
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* Current Release Written By: Adeela Gill and Kazue Kikuchi
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* Assembled Under: CASM08Z (P&E Microcomputer Systems, Inc.)
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* Part Family Software Routine Works With: HC08
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* Routine Size (Bytes):
* Stack Space Used (Bytes):
* RAM Used (Bytes):
* Global Variables Used:
* Subroutine Called:
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* Full Functional Description Of Routine Design:
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***************************************************************************
***************************************************************************
*****
***************************************************************************
NOLIST
$INCLUDE
$INCLUDE
LIST
***************************************************************************
*****
***************************************************************************
Start:
Data_load:
58
SSTprog.mrt is the main routine for the programming operation. It *
demonstrates an SST programming algorithm that minimizes the
amount of time needed to program a row of FLASH memory on the
MC68HC908AS60A or the MC68HC908AZ60A. One row consists of 64
consecutive bytes of FLASH memory within specified address ranges.*
org
org
mov
ldhx
lda
sta
inca
aix
cphx
bne
ldhx
sthx
lda
sta
ldhx
sthx
jsr
"H908AS60A.frk"
ram1
"SSTflash.var"
ram2
#$71,config-1
#$0000
#$1
data,x
#$1
#!64
Data_load
#data
Buffer_addr
#!64
size
#$8040
FLASH_addr
ProgRow
Ver.: 3.16
Motorola Applications Engineering - Austin, TX
Freescale Semiconductor, Inc.
For More Information On This Product,
269
4
69
FLASH_addr, Buffer_addr, data, size
ProgRow
Main Routine
Include Files
;Equates for all registers and bits in
; the MC68HC908AS60A
;RAM variable definitions
;Turn off the COP, but leave the LVI on
;Fill the RAM buffer, 64 bytes data,
; values to program into FLASH
; (ie. 01,02,03,........,3E,3F,40)
;Load Buffer_addr with the start address
; of the RAM buffer
;Set the number of bytes to program
;Load FLASH_addr with programming start
; address
;Program a row
Go to: www.freescale.com
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MOTOROLA
AN2156