firmware updates for 18m2
- Thread starter martinn
- Start date
westaust55
Moderator
Not that I am aware of to date.
Also seems a few other minor bugs have recently come to light so an update encompassing several items may be imminent.
Also seems a few other minor bugs have recently come to light so an update encompassing several items may be imminent.
You can workaround the 2.A i2c issue without too much trouble as follows:
Code:
ISSUE - CORRECTED ISSUE WITH 'WORD' MODE IN I2C COMMUNICATION
Word mode for i2c EEPROM addressing does not work correctly in v2.A
Byte mode works correctly. Therefore to workaround this issue emulate word mode manually by use of bytes only.
This is possible because all word addresses are always transmitted as two separate bytes on the i2c bus anyway.
Therefore the i2c bus wll see exactly the same byte sequence as would be generated automatically in word mode.
To do this follow these 3 steps:
a) Change 'i2cword' to 'i2cbyte' in the hi2csetup command
b) Change hi2cout commands from this
hi2cout word_address, (data1, data2, etc)
to
hi2cout (msb_byte_of_word, lsb_byte_of_word, data1, data2, etc)
e.g.
hi2cout w0, (b10, b11, b12)
to
hi2cout (b1, b0, b10, b11, b12) ; (as word w0 is made up of the two bytes b1:b0)
e.g.
hi2cout 100, (b10, b11, b12)
to
hi2cout (0, 100, b10, b11, b12) ; (as 100 = 0x256 + 100)
e.g.
hi2cout 300, (b10, b11, b12)
to
hi2cout (1, 44, b10, b11, b12) ; (as 300 = 1x256 + 44)
c) Change hi2cin commands from this
hi2cin word_address, (data1, data2, etc)
to
hi2cout (msb_byte_of_word, lsb_byte_of_word)
hi2cin (data1, data2, etc)
e.g.
hi2cin w0, (b10, b11, b12)
to
hi2cout (b1, b0) ; (as word w0 is made up of the two bytes b1:b0)
hi2cin (b10, b11, b12)
e.g.
hi2in 600, (b10, b11, b12)
to
hi2cout (2, 88) ; (as 600 = 2x256 + 88)
hi2cin (b10, b11, b12)Hi Technical
I am still having troubles trying to modify the Datalogger wizard code to suit the 18m2.
This code is purely from the wizard, would it possible to post an 18M2 version of it?
Also, what effect does the Axe110 Datalogger reset button have on the 18M2?
Thanks
Martin
I am still having troubles trying to modify the Datalogger wizard code to suit the 18m2.
This code is purely from the wizard, would it possible to post an 18M2 version of it?
Also, what effect does the Axe110 Datalogger reset button have on the 18M2?
Thanks
Martin
Code:
'AXE110 PICAXE - New Datalogger Mission Program
'Automatically generated by Wizard
'LED will flash green as readings are taken.
'Data can be retrieved after mission (LED red) by Datalink tool (F9).
'Use Datalink options: Baud rate - 4800, Sensors - 4, Send G - Enabled
' *******************
' ***** Options *****
' *******************
'Title -
'Date - 13/12/2010
'Time - 7:20:52 AM
'Options Selected
'Sensors:
'Sensor 0 - Light
'Sensor 1 - Sensor 1
'Sensor 2 - Sensor 2
'Sensor 7 - Temperature
'Memory:
'No of readings = 4095
'1 x 24LC256
'Outputs:
'Bi-colour LED
'Logging Period:
'DS1307 RTC
'Hours: 1 Mins: 0 Secs: 0
' ********************
' ***** Symbols *****
' ********************
'Symbol definitions
symbol data0 = b0
symbol data1 = b1
symbol data2 = b2
symbol data7 = b3
symbol top_address = w2 '(b4 + b5)
symbol address = w3 '(b6 + b7)
symbol temp_word = w4 '(b8 + b9)
symbol temp_byte = b10
symbol hours = b11
symbol mins = b12
symbol secs = b13
symbol day = b0
symbol month = b1
symbol COM = 44 'comma
symbol RET = 13 'carriage return
symbol LFEED = 10 'line feed
'Preload sensor names and title into data memory
EEPROM 0,(0,0)
EEPROM 16,("Light")
EEPROM 32,("Sensor 1")
EEPROM 48,("Sensor 2")
EEPROM 64,("Temperature")
EEPROM 80,(" ")
' ***************************
' ***** Initialisation *****
' ***************************
init:
let dirsB = 255 'setup outputs
high 5 ' write protect eeprom
'reload the last address from data memory
read 0,b6
read 1,b7
' *********************************
' ***** Main loop - read data *****
' *********************************
'Now read each sensor
main:
high 3 ' flash LED
readadc 0,data0
readadc 1,data1
readadc 2,data2
readtemp 7,data7
low 3 ' end of flash LED
' *****************************
' ***** Now Save the Data *****
' *****************************
'Now save the data
save_data:
low 5 ' write enable eeprom
'Single 24LC256. Input0 from address 0, input1 from address 4096
'Single 24LC256. Input2 from address 8192, input7 from address 12288
if address > 4095 then memory_full
i2cslave %10100000, i2cslow, i2cword
writei2c address,(data0)
pause 10
readi2c address,(temp_byte)
if temp_byte <> data0 then ee_error
temp_word = address + 4096 writei2c temp_word,(data1)
pause 10
readi2c temp_word,(temp_byte)
if temp_byte <> data1 then ee_error
temp_word = address + 8192 writei2c temp_word,(data2)
pause 10
readi2c temp_word,(temp_byte)
if temp_byte <> data2 then ee_error
temp_word = address + 12288 writei2c temp_word,(data7)
pause 10
readi2c temp_word,(temp_byte)
if temp_byte <> data7 then ee_error
'increment address and save in data memory
inc_address:
high 5 ' write protect eeprom
let address = address + 1
write 0,b6
write 1,b7
if address > 4095 then memory_full
' ***********************
' ***** Time Delays *****
' ***********************
'Now do time delay
'Read time now
read_rtc_now:
i2cslave %11010000, i2cslow, i2cbyte
readi2c 0,(secs,mins,hours)
'Convert to decimal then add offset
gosub bcd_decimal
let data0 = secs
let data1 = mins
let data2 = hours
Add_Secs:
let data0 = data0 + 0
if data0 < 60 then Add_Mins
'Secs is now greater than 60 so add 1 to minute instead
let data0 = data0 - 60
let data1 = data1 + 1
Add_Mins:
let data1 = data1 + 0
if data1 < 60 then Add_Hours
'Mins is now greater than 60 so add 1 to hour instead
let data1 = data1 - 60
let data2 = data2 + 1
Add_Hours:
let data2 = data2 + 1
if data2 < 24 then read_rtc
'Hours is now greater than 24 so correct
let data2 = data2 - 24
'Read rtc to test alarm'
read_rtc:
i2cslave %11010000, i2cslow, i2cbyte
readi2c 0,(secs,mins,hours)
gosub bcd_decimal
if secs <> data0 then read_rtc
if mins <> data1 then read_rtc
if hours <> data2 then read_rtc
'now do next reading
goto main
' *************************
' ***** Error Routine *****
' *************************
'Memory error - flash LED red/green'
ee_error:
high 2
low 3
pause 500
low 2
high 3
pause 500
goto ee_error
' ***********************
' ***** Memory Full *****
' ***********************
'Memory is full - LED red'
memory_full:
high 2
' ****************************
' ***** Datalink Routine *****
' ****************************
'Datalink routine to transmit data
read_init:
high 5 ' write protect eeprom
let address = 0
'Get top address from data memory (w2=b4+b5)
read 0,b4
read 1,b5
'Wait for G character sent from software
serin 6, N4800, ("G") 'Wait for GO signal
'Transmit the titles
serout 7,N4800,("Address",COM,"Light",COM,"Sensor 1",COM,"Sensor 2",COM,"Temperature",COM," ",RET,LFEED)
'Now read the data
read_data:
'Single 24LC256. Input0 from address 0, input1 from address 4096
'Single 24LC256. Input2 from address 8192, input7 from address 12288
if address > 4095 then all_done
i2cslave %10100000, i2cslow, i2cword
readi2c address,(data0)
temp_word = address + 4096
readi2c temp_word,(data1)
temp_word = address + 8192
readi2c temp_word,(data2)
temp_word = address + 12288
readi2c temp_word,(data7)
'transmit data
tx_data:
serout 7,N4800,(#address,COM,#data0,COM,#data1,COM,#data2,COM,#data7,RET,LFEED)
let address = address + 1
if address = top_address then all_done
goto read_data
'finished so send NULL
all_done:
serout 7,N4800,(0)
goto read_init
' **********************************
' ***** Convert BCD to decimal *****
' **********************************
'Convert BCD to decimal
bcd_decimal:
let temp_byte = secs & %11110000 / 16 * 10
let secs = secs & %00001111 + temp_byte
let temp_byte = mins & %11110000 / 16 * 10
let mins = mins & %00001111 + temp_byte
let temp_byte = hours & %11110000 / 16 * 10
let hours = hours & %00001111 + temp_byte
return
hippy
Ex-Staff (retired)
It should be possible, it would just take some time to go through it by hand. Before anyone considers doing that can you confirm it's the exact code you want ?
None. The old 'reset' pin is simply another input pin on the 18M2 so could be used to read if the 'reset button' is pushed or not. It can't however be used to directly cause a hardware reset. To achieve the equivalent of that you'd have to poll or interrupt on the pin going low and issue the RESET command.
As the pin is input only by silicon design you cannot set it output high and then short that output to 0V by pressing the reset button and damaging the PICAXE.
Thanks Hippy
I don't want someone to spend a lot of time on it, I have it half working I think it is a problem with the addressing.
I would happy if someone could just give me an 18M2 version of just these bits from the wizard code. But a copy of the datalogger wizard in 18M2 format could be useful to people (like me) who just want to 'hack' the code to use the Axe110 datalogger with an 18M2.
and
thanks
Martin
I don't want someone to spend a lot of time on it, I have it half working I think it is a problem with the addressing.
I would happy if someone could just give me an 18M2 version of just these bits from the wizard code. But a copy of the datalogger wizard in 18M2 format could be useful to people (like me) who just want to 'hack' the code to use the Axe110 datalogger with an 18M2.
Code:
if address > 4095 then memory_full
i2cslave %10100000, i2cslow, i2cword
writei2c address,(data0)
pause 10
readi2c address,(temp_byte)
if temp_byte <> data0 then ee_error
temp_word = address + 12288 writei2c temp_word,(data7)
pause 10
readi2c temp_word,(temp_byte)
if temp_byte <> data7 then ee_error
Code:
if address > 4095 then all_done
i2cslave %10100000, i2cslow, i2cword
readi2c address,(data0)
temp_word = address + 12288
readi2c temp_word,(data7)Martin