Hey all, this has been troubling me for quite a while now. My msp430f2272 is talking to an eeprom through i2c and also to another device...

Hey all, this has been troubling me for quite a while now. My msp430f2272 is talking to an eeprom through i2c and also to another device through uart(9600). Each work great separately, but when I initialize both of them, the UART cannot receive any data. Here's how i'm doing things: 1. Initialize UART [code] BCSCTL1 = CALBC1_1MHZ; // Set DCO DCOCTL = CALDCO_1MHZ; ...

Has anyone had a problem with the I2C peripheral on the 169? I am trying to read and write to a 24LC16B eeProm. I have no trouble with the...

Has anyone had a problem with the I2C peripheral on the 169? I am trying to read and write to a 24LC16B eeProm. I have no trouble with the writing, either single bytes or pages. I also have no problems with a current pointer read. Where I can't seem to get it to work is for a Random Read. This read requires a RESTART and it just doesn't seem to be happening. I have tried it with a fair...

I have about 4KB of operational parameters to be stored in non- volitile memory but they will be updated occasionally. I have experience...

I have about 4KB of operational parameters to be stored in non- volitile memory but they will be updated occasionally. I have experience doing this in EEPROM but this is my first encounter with flash. I found the flash routines in the download area but would appreciate a chance to talk to anyone who has experience with updating and erasing segments in flash. I could use the flash or tag

1) As for external storing: - For logging large amout of data, I use serial flash chips, like the AT25F4096: SPI, 4Mbit, about $1.72 per unit on...

1) As for external storing: - For logging large amout of data, I use serial flash chips, like the AT25F4096: SPI, 4Mbit, about $1.72 per unit on digi-key. But remember this is FLASH and not EEPROM. - For medium amounts of data, it may be preferible to use an I2C EEPROMs like the 24LC256 (256kbit) for just under $2. - If you need to store just a few bytes, the 93LC46 (SPI, 1kbit) may be ...

In my application there is an EEPROM that is used to store data. The app has been hanging sporadically (can be hours or days), but consistently....

In my application there is an EEPROM that is used to store data. The app has been hanging sporadically (can be hours or days), but consistently. I managed to catch it while on debugger and it is hanged on the line indicated. But, I don't know *why* it is hanging. Any suggestions please on how to approach/debug? Thanks. unsigned char I2C_ByteRead(unsigned char Addressing_Mode, unsigned int Add...

hi all, m trying to interface an ADC and EEPROM to MSP430F1612. but the write operation to both the devices is not working properly. at the...

hi all, m trying to interface an ADC and EEPROM to MSP430F1612. but the write operation to both the devices is not working properly. at the same the read operations are performed successfully. While single stepping i found that during write operation whtever byte m trying to transmit is not wriiten into I2CDRB register. m trying the same example program frm application notes...... Cud anyb

Hi, i have been trying to work with the I2C module present in eZ430-F2013, i am not getting an acknowledgment back from the connected slave...

Hi, i have been trying to work with the I2C module present in eZ430-F2013, i am not getting an acknowledgment back from the connected slave device. i have tried connecting ATMEL 24C04 EEPROM chip & Philips PCF8574P as slave devices, but still no resluts! my program is written in assembly and it gets struck while waiting for the acknowledgment. i downloaded some example programs offer

Hi. I have a AT24C512 connected to my 1612 on I2C. I manage to write data which seems to be OK. But on reading it back, the data is corrupted...

Hi. I have a AT24C512 connected to my 1612 on I2C. I manage to write data which seems to be OK. But on reading it back, the data is corrupted (I am writing all 0x00 but get back other values). I say "correct" and "corrupted" based on what is seen in the logic analyzer. I was using DMA but now only I2C directly, still the same. What may be the reason? I am out of ideas what to check. Thanks. ...

Hi, i took the code from slaa208 and made minimal modifications for using an M24C08 but only writing works without problems; reading nearly...

Hi, i took the code from slaa208 and made minimal modifications for using an M24C08 but only writing works without problems; reading nearly never works. The reading functions hangs at while ((~I2CIFG) & ARDYIFG); // wait until transmission is finished Changing the pullups (1k, 3k3, 11k) and the clock did not help. Any idea what may be the reason? Regards, Rolf

I am trying to interface my atmel 24c04 to my msp430fe427. My msp430 does not have a i2c bus and i am enumerating a soft i2c bus. I...

I am trying to interface my atmel 24c04 to my msp430fe427. My msp430 does not have a i2c bus and i am enumerating a soft i2c bus. I am struggling to write a program to synchronise the sda acl of i2c. If anyone could guide me, i would be very thankful for their help.

edkeane13 wrote: > Hi > > I am trying to copy a new flash image from an external EEPROM to my > MSP430 > > I have read the...

edkeane13 wrote: > Hi > > I am trying to copy a new flash image from an external EEPROM to my > MSP430 > > I have read the document slaa103. > > I am a little unsure on how the direct flash reprogramming works? > > Where does the code described in the document ie flash_idle.c reside > in relation to the new image , i am not sure on how this code is not > overwritten. > Any s

Hello everyone, Could anyone point some serial (SPI) memory ICs that I may use with MSP430? I need at least 1Mbit serial memory (Flash or...

Hello everyone, Could anyone point some serial (SPI) memory ICs that I may use with MSP430? I need at least 1Mbit serial memory (Flash or EEProm). So far I only found SST and STMicroeletronics ICs (microchip ICs are too small for my app). Thank you Gabriel Calin

Hi I am trying to copy a new flash image from an external EEPROM to my MSP430 I have read the document slaa103. I am a little unsure...

Hi I am trying to copy a new flash image from an external EEPROM to my MSP430 I have read the document slaa103. I am a little unsure on how the direct flash reprogramming works? Where does the code described in the document ie flash_idle.c reside in relation to the new image , i am not sure on how this code is not overwritten. Any source examples would be appreciated regar...

I have a small circuit with MSP430F449 and a small test code that initializes and sleeps that is all. The current consumption is more than 10...

I have a small circuit with MSP430F449 and a small test code that initializes and sleeps that is all. The current consumption is more than 10 mA!!! (I have an analog tester, with max of 10mA). The chip is in sleep mode, how could this be possible? The other components I have are max3221, which is in auto shutdown mode with 15uA, SST EEprom with 1uA standby current, TSP7201 (which not powe

I've put a couple of pics of my 'F1121 prototyping system into the Photos area. Folder is 'Leon's pics'. The application circuitry in this...

I've put a couple of pics of my 'F1121 prototyping system into the Photos area. Folder is 'Leon's pics'. The application circuitry in this case is just an EEPROM and LED, for testing some software I'm developing for a client. Both boards are single-sided and home-made in the kitchen sink, hence the unusual arrangement with the components on the underside. I forgot to allow for right an

Hi, I need to define a variable in ram that must keep its value after watchdog reset. I defined simply a unsigned long variable. I wrote a...

Hi, I need to define a variable in ram that must keep its value after watchdog reset. I defined simply a unsigned long variable. I wrote a value but after watchdog reset its value was different. I need to do it to check if I came to some software sentence from power up or from watchdog. I haven't possibility for doint it in EEPROM. Please, could somebody help me? Thanks. Clau...

Bug wants food! Secondbrahim, AKA, Alex :) Too much Napoleon brandy one could say :) ----- Original Message ----- From: "firstbrahim"...

Bug wants food! Secondbrahim, AKA, Alex :) Too much Napoleon brandy one could say :) ----- Original Message ----- From: "firstbrahim" To: Sent: Sunday, December 25, 2005 12:29 AM Subject: [msp430] flash why when i write in the eeprom of msp430fe427 the ?c bug To unsubscribe from the msp430 group, send an email to: ms

I am implementing a data logger that stores data in EEPROM. The structure of the records is that they have a length byte, then the data, then a...

I am implementing a data logger that stores data in EEPROM. The structure of the records is that they have a length byte, then the data, then a delimiter byte. I have encountered instances of data corruption (which of course have to be debugged and solved). Is it a good practice/idea to add a CRC byte at the end of each record in order to validate that it is not corrupt? (i.e. on reading back th...

Should the flash memory in MSP430 be used only for downloading of data or i= s it advisable to use flash memory for data logging considering...

Should the flash memory in MSP430 be used only for downloading of data or i= s it advisable to use flash memory for data logging considering 100000 time= s writing capability of flash. In my current project I require to keep log of event at MSP ports. I would = have to write say approx 500=C2=A0bytes a day and the application is suppos= ed to work for around 10 years. Or should I use EEPROM ...

hi !!! I am having problem with reading and writing data to FRAM using the I2C bus. I am using FM24CL16 connected to MSP430F1610. I have...

hi !!! I am having problem with reading and writing data to FRAM using the I2C bus. I am using FM24CL16 connected to MSP430F1610. I have tried using the sample application code of EEPROM+I2C on the same ( i changed the address of FRAM) , but im unable to read and write. The problem is that I2CDRB register doesnt get updated with the new value. Can someone please tell me how to go a