In SX Microcontrollers, SX/B Compiler and SX-Key Tool, John Kauffman wrote:

SX/B and Hitt Data Logger
I've incorporated your suggestions (I think) but am still getting:
- no file written to the SD card
- no logger active light on

I've tried with Murata 400CM625 resonator and FREQ=4_000_000
I've also switched to Murata 50 resonator and freq of 50M. 
Logger works fine in BS2.

This program is stripped down to try to focus on what is wrong to create a file.

My guesses on problems:
Pacing command & value not sent correctly?
Baud setting on SEROUT?

Much thanks.

' -----------------------------------------------
' Device Settings
' -----------------------------------------------
' external resonator Murata "50.00"
DEVICE SX28, OSCXT1, TURBO, STACKX, OPTIONX
FREQ 50_000_000

'-------- IO Pins
' data logger jumper OFF for 2400
Spin pin RA.0 ' Serial Pin

' Variables
tmpW1	var	word
tmpB1	var	byte
counter var byte

'-------- Subroutines / Jump Table
TX_BYTE sub 1	'has parameters so don't use "GoSub"
TX_STR sub 2 	' a string as follows
' TX_Str takes a string in quotes (minimum 2 char)
' TX_Str takes a string in DATA with a 0 terminator

'================================================
PROGRAM Start
'================================================
Start:

'-------- Program Code
Main:
LOW SPin 					' Start with serial pin low
PAUSE 1000 				' Allow device to stabilize
TX_Str "xxx!WU" 	' Wake Up
TX_Str "xxx!PV30" ' Set pacing 
TX_Str "xxx!CF"		' Close file (in case open)
TX_Str "xxx!OFDATA01.CSV"	' Open file "DATA01.CSV"
TX_Str "xxx!ASHeadings" ' Append col headings
For counter = 1 to 100	'append some test values
	Tx_str "xxx!AS"
	Tx_byte counter
	Tx_str "CRLF"
next
TX_Str "xxx!CF"		' Close File
TX_Str "xxx!SL"		' Put module into Sleep Mode
end

' ------- Subs ---------------------------
sub TX_BYTE
	SEROUT Spin, N2400, __PARAM1
	endsub

SUB TX_STR
  tmpW1 = __WPARAM12
  DO
    READINC tmpW1, tmpB1
    IF tmpB1 = 0 THEN EXIT
    TX_BYTE tmpB1
  LOOP
  ENDSUB

---------- End of Message ----------


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