ST10F272z2 flashing item

[fsikkema]

Posted on September 15, 2008 at 09:15

ST10F272z2 flashing item

[fsikkema]

Posted on September 03, 2008 at 16:51

Dear all,

Can anybody explain why the code below works

for a ST10F273z4 and the same code, adjusted

for the F272, does not work?

(it programs the ecu-serial number from the

kline-buffer to the flash (in B0F1))

F273 code:

; Select DWPG

mov R1,#0x1080

exts #0x0E,#1

mov FCR0H,R1

; Set data

mov RL1,Kline_message_buffer+7

mov RH1,Kline_message_buffer+8

exts #0x0E,#1

mov FDR0L,R1

mov RL1,Kline_message_buffer+9

mov RH1,Kline_message_buffer+10

exts #0x0E,#1

mov FDR0H,R1

mov RL1,Kline_message_buffer+11

mov RH1,Kline_message_buffer+12

exts #0x0E,#1

mov FDR1L,R1

mov R1,#0xFFFF

exts #0x0E,#1

mov FDR1H,R1

; Set address

mov R2,#1 ; Msw of address = 1!!!

mov R1,#F_ecu_serial_number

exts #0x0E,#2

mov FARL,R1

mov FARH,R2

; Set WMS

exts #0x0E,#1

mov R2,FCR0H

or R2,#0x8000

exts #0x0E,#1

mov FCR0H,R2

waitfornolock3:

exts #0x0E,#1

mov R2,FCR0L

jb R2.4,waitfornolock3

jb R2.5,waitfornolock3

F272 Code:

; Select DWPG

mov R1,#0x1000

exts #0x08,#1

mov FCR0H,R1

; Set data

mov RL1,Kline_message_buffer+7

mov RH1,Kline_message_buffer+8

exts #0x08,#1

mov FDR0L,R1

mov RL1,Kline_message_buffer+9

mov RH1,Kline_message_buffer+10

exts #0x08,#1

mov FDR0H,R1

mov RL1,Kline_message_buffer+11

mov RH1,Kline_message_buffer+12

exts #0x08,#1

mov FDR1L,R1

mov R1,#0xFFFF

exts #0x08,#1

mov FDR1H,R1

; Set address

mov R2,#1 ; Msw of address = 1!!!

mov R1,#F_ecu_serial_number

exts #0x08,#2

mov FARL,R1

mov FARH,R2

; Set WMS

exts #0x08,#1

mov R2,FCR0H

or R2,#0x8000

exts #0x08,#1

mov FCR0H,R2

waitfornolock3:

exts #0x08,#1

mov R2,FCR0L

jb R2.4,waitfornolock3

jb R2.1,waitfornolock3

Anybody any hints?

Regards, Folkert

[ This message was edited by: Folkert on 03-09-2008 20:22 ]

[fsikkema]

Posted on September 15, 2008 at 09:15

In spite of the fact that the datasheets give the same flashregister access rules for both the F273 and F272 (direct addressing is not allowed), it works for the 273 and not for the 272. Thus when applying the rules completely, it works:

mov R0,#FCR0L

exts #0x08,#1

mov R2,[R0]

and R2,#0x0012

will give you if the flash is busy...

Regards, Folkert