thanks for your kind reply, Yes I should. >From msp430commands.txt you can find below
Command (0): setRTC() - Set Realtime Clock
------------------------------------------
> I2C Write (10 bytes)
[0] = 10 ; Message length
[1] = 0 ; Command index
[2] = year (LSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( LSB=0x06 )
[3] = year (MSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( MSB=0x20 )
[4] = month ; ( in hex ) i.e. Dec. -> 0x12
[5] = day ; ( in hex ) i.e. 31st -> 0x31
[6] = hour ; ( in hex ) i.e. 12 -> 0x12
[7] = minute ; ( in hex ) i.e. 30' -> 0x30
[8] = second ; ( in hex ) i.e 45" -> 0x45
[9] = pm ; 0 = AM, 1 = PM
> Wait 100 us.
> Done.
and have a look at the c file attached for the msp430lib and it seems hex usage
is required
--------------------------
BEST REGARD
Date: Thu, 24 Dec 2009 13:12:17 +0200
Subject: Re: DM6446, Problem in RTC
From: alber...@gmail.com
To: mohameeed2...@hotmail.com
CC: davinci-linux-open-source@linux.davincidsp.com
are you sure you need to tell the numbers in hex?
Albert
2009/12/24 Mohamed AbdElwahed <mohameeed2...@hotmail.com>
i am using lsp1.2 in development which contains "msp430lib"
that is used to control RTC and IR
i am using the following commands to set the RTC as follow
msp430lib_set_rtc(iYear,iMonth,iDay,iHour,iMinute,iSecond,iPm);
after formating the date like the following
year (LSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( LSB=0x06 )
year (MSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( MSB=0x20 )
month ; ( in hex ) i.e. Dec. -> 0x12
day ; ( in hex ) i.e. 31st -> 0x31
hour ; ( in hex ) i.e. 12 -> 0x12
minute ; ( in hex ) i.e. 30' -> 0x30
second ; ( in hex ) i.e 45" -> 0x45
and get the RTC using
msp430lib_get_rtc(&iYear,&iMonth,&iDay,&iHour,&iMinute,&iSecond,&iPm);
but
when setting the clock to 28/2/2009 the next day from the RTC is 29/2/2009
which is not valued
when setting the clock to 28/12/2009 the next day from the RTC is 1/1/2009
which is not valued
Is there any help/URL/... to fix this problem?
------------------------
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Usage:
The MSP430 interface is targets a 20KHz I2C clock frequency and a 50/50 I2C
clock duty cycle. The I2C clock must stay at 20KHz and below even if you are
talking to a different device on the same I2C bus as the MSP430. Similarly,
you must wait 100 microseconds after an I2C command to any device on the I2C
bus on which the MSP430 resides to allow for recovery after its address
checking phase.
Version History:
1.00: Initial release (shipped with Rev C and Rev D DaVinci EVMs)
1.10: Added:
- Ability to get firmware version (command 7)
- Sleep mode (command 8)
- New versions of RTC get/set with PM field (commands 9 and 10)
- RTC defaults to noon on Jan 1, 2004 on first powered boot based on
magic num
Fixed:
- RTC count valid on battery power and across resets.
1.20: Added:
- Sleep mode turns all I/Os into inputs to save power
Fixed:
- Code for command 9 and 10 ordering matches this document accurately
now.
1.30: Changed:
- Eliminated setRTC2/getRTC2 (commands 9, 10).
- Modified setRTC and getRTC to pass 10 byte data with PM field
Added:
- Extra checks to prevent undefined commands from crashing the MSP430.
1.40: Changed:
- Sleep mode disables interrupts from the infrared and I2C modules in
addition
to disabling pins to guarantee that the MSP430 won't affect the I2C
bus
after a sleepMode() command when the host is trying to access other
chips
on the I2C bus.
- sleepMode() command description has been fixed. Version 1.30 of
this file
incorrectly stated that sleepMode() had an option to toggle sleep
mode on
and off. The real implementation never had that option.
sleepMode() always
turns the MSP430 off.
MSP430 I2C address on DaVinci EVM: (hex)0x23, (decimal)35
------------------------------------------
MSP430 command set index
------------------------
0 - SET_RTC_PARAMS - setRTC() - Set realtime clock
1 - GET_RTC_PARAMS - getRTC() - Get realtime clock
2 - GET_IR_DATA - getIRData() - Get infrared data array
3 - GET_IR_VALUE - getIRVal() - Get last infrared value
4 - GET_INPUT_STATE - getInputState() - Get the input state of pins
5 - GET_EVENT - getEvent() - Get outstanding events
6 - SET_OUTPUT_STATE - setOutputState() - Set the output state of pins
7 - GET_VERSION - getVersion() - Get the firmware version
8 - SLEEP_MODE - sleepMode() - Set sleep mode
Command (0): setRTC() - Set Realtime Clock
------------------------------------------
> I2C Write (10 bytes)
[0] = 10 ; Message length
[1] = 0 ; Command index
[2] = year (LSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( LSB=0x06 )
[3] = year (MSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( MSB=0x20 )
[4] = month ; ( in hex ) i.e. Dec. -> 0x12
[5] = day ; ( in hex ) i.e. 31st -> 0x31
[6] = hour ; ( in hex ) i.e. 12 -> 0x12
[7] = minute ; ( in hex ) i.e. 30' -> 0x30
[8] = second ; ( in hex ) i.e 45" -> 0x45
[9] = pm ; 0 = AM, 1 = PM
> Wait 100 us.
> Done.
Command (1): getRTC() - Get Realtime Clock
------------------------------------------
> I2C Write (2 bytes)
[0] = 2 ; Message length
[1] = 1 ; Command index
> Wait 100 us.
> I2C Read (10 bytes)
[0] = 10 ; Message length
[1] = 1 ; Command index
[2] = year (LSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( LSB=0x06 )
[3] = year (MSB) ; ( in hex ) i.e. 2006 -> 0x2006 ( MSB=0x20 )
[4] = month ; ( in hex ) i.e. Dec. -> 0x12
[5] = day ; ( in hex ) i.e. 31st -> 0x31
[6] = hour ; ( in hex ) i.e. 12 -> 0x12
[7] = minute ; ( in hex ) i.e. 30' -> 0x30
[8] = second ; ( in hex ) i.e 45" -> 0x45
[9] = pm ; 0 = AM, 1 = PM
> Wait 100 us.
> Done.
Command (2): getIRData() - Get entire Infrared buffer
-----------------------------------------------------
> I2C Write 2 bytes
[0] = 2 ; Message length
[1] = 2 ; Command index
> Wait 100 us.
> I2C Read [variable length]
[0] = message length ; Message length
[1] = 2 ; Command index
[2] = 1st IR value (LSB)
[3] = 1st IR value (MSB)
[4] = 2nd IR value (LSB)
[5] = 2nd IR value (MSB)
[6] = 3rd IR value (LSB)
[7] = 3rd IR value (MSB)
...
> Wait 100 us.
> Done.
Command (3): getIRVal() - Get last Infrared value
-------------------------------------------------
> I2C Write 2 bytes
[0] = 2 ; Message length
[1] = 3 ; Command index
> Wait 100 us.
> I2C Read 4 bytes
[0] = 4 ; Message length
[1] = 3 ; Command index
[2] = IR value (LSB)
[3] = IR value (MSB)
> Wait 100 us.
> Done.
Command (4): getInputState() - Get port 2 and port 3 input state
----------------------------------------------------------------
> I2C Write 2 bytes
[0] = 2 ; Message length
[1] = 4 ; Command index
> Wait 100 us.
> I2C Read 4 bytes
[0] = 4 ; Message length
[1] = 4 ; Command index
[2] = P2 state ; Bit 4: CF CD.2 ( 1: No Card )( 0: Card Found )
; Bit 3: CF CD.1 ( 1: No Card )( 0: Card Found )
; Bit 2: MS/Pro CD ( 1: No Card )( 0: Card Found )
; Bit 1: SD/MMC CD ( 1: No Card )( 0: Card Found )
[3] = P3 state ; Bit 6: SD/MMC WP ( 1: WP on ) ( 0: WP off )
; Bit 2: xD CD ( 1: No Card )( 0: Card Found )
; Bit 1: SM CD ( 1: No Card )( 0: Card Found )
> Wait 100 us.
> Done.
Command (5): getEvent() - Get outstanding events
------------------------------------------------
> I2C Write 2 bytes
[0] = 2 ; Message length
[1] = 5 ; Command index
> Wait 100 us.
> I2C Read 3 bytes
[0] = 3 ; Message length
[1] = 5 ; Command index
[2] = Events ; ( 1: State Change )
; ( 2: IR Data )
> Wait 100 us.
> Done.
Command (6): setOutputState() - Set port 2 and port3 output state
-----------------------------------------------------------------
> I2C Write 4 bytes
[0] = 4 ; Message length
[1] = 6 ; Command index
[2] = P2 state ; All bits are ignored
[3] = P3 state ; Bit 3: CF_PWR_ON ( 1: POWER ON ) ( 0: POWER OFF )
; Bit 0: SM_CE ( 1: SM CE OFF )( 0: SM CE ON )
> Wait 100 us.
> Done.
Command (7): Get Version - Get firmware version
------------------------------------------------
> I2C Write 2 bytes
[0] = 2 ; Message length
[1] = 7 ; Command index
> Wait 100 us.
> I2C Read 3 bytes
[0] = 3 ; Message length
[1] = 7 ; Command index
[2] = Version ; 1 = This version (first firmware with version support)
> Wait 100 us.
> Done.
Command (8): Sleep Mode - Put MSP430 to sleep, stop driving outputs
-----------------------------------------------------------------
> I2C Write 3 bytes
[0] = 2 ; Message length
[1] = 8 ; Command index
> Wait 100 us.
> Done.
msp430lib.c
Description: Binary data
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