SPI

Started by MongOsama in MSP43013 years ago 3 replies

Hi everybody! Perhaps one of you can help me... I'm using an MSP430F417, It doesn't has SPI interface. I'm trying to connect this with an...

Hi everybody! Perhaps one of you can help me... I'm using an MSP430F417, It doesn't has SPI interface. I'm trying to connect this with an EEProm AT25256. How can i do that? Thanks for all! ignacio ------------------------ Yahoo! Groups Sponsor --------------------~--> Check out the new improvements in Yahoo! Groups email. http://us.click.yahoo.com/6pRQfA/fOaOAA/yQLSAA/CFFolB/TM


OT: Ahrrrrr I2C troubles

Started by Dan Bloomquist in MSP43010 years ago 2 replies

Hi, OT because I don't think this is an MSP430 issue. I'm just hoping someone has seen something like this. I'm creating a datalogger with...

Hi, OT because I don't think this is an MSP430 issue. I'm just hoping someone has seen something like this. I'm creating a datalogger with the MSP430. It will present itself to the world as an I2C slave, I've posted the code before. A couple of days ago I sat down and wrote a bitbang I2C master so I could use a 24LCxx(EEPROM) to store data. That went well. I could write 16 bytes a...


Query

Started by "sachin .b . rathod" in MSP43012 years ago

Hello friends. I m currently designing the msp430f2013TN mixed signal microcontroller design hardware.So what criteria i have to keep in mind...

Hello friends. I m currently designing the msp430f2013TN mixed signal microcontroller design hardware.So what criteria i have to keep in mind while designing. My project is Interfacing different application specific kits(ASKs) such as LCD,Matrix keyboard,Stepper motor,I2C,EEPROM,RTC,Finger print,GSM Modem,RF module etc.So what i have to do .The coding is going to done in C language. ...


i2c interfering with UART

Started by shred445 in MSP43010 years ago 14 replies

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; ...


MSP430F169 I2C peripheral issues

Started by fchambers01 in MSP43012 years ago

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...


Storing parameters in Flash

Started by jkw_ee in MSP43014 years ago 7 replies

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


Re: Flash

Started by tintronic in MSP43011 years ago 1 reply

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 ...


I2C hanging

Started by merapcb in MSP4307 years ago 21 replies

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...


I2C write operation error?

Started by Smita Gaikwad in MSP43014 years ago 1 reply

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


I2C communication problem

Started by Vasant in MSP43013 years ago 8 replies

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


Corruption on reading from EEPROM

Started by merapcb in MSP4309 years ago 25 replies

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. ...


I2C EEPROM: Write works, Read not

Started by rolf...@... in MSP43014 years ago 27 replies

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


interfacing 24c04 eeprom to msp430fe427

Started by shastrinvs in MSP43014 years ago 1 reply

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.


Re: Flash loading the MSP430

Started by Ray Hurst in MSP43011 years ago

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


Serial Memory

Started by Gabriel Calin in MSP43015 years ago 9 replies

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


Flash loading the MSP430

Started by edkeane13 in MSP43011 years ago

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...


Unreasonably high power consumption

Started by Omer Yalhi in MSP43016 years ago 14 replies

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


'F1121 prototyping system

Started by leon_heller in MSP43015 years ago 2 replies

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


Variable in RAM that shall keep its value after watchdog reset

Started by cmaybisher in MSP43011 years ago 1 reply

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...


Re: flash

Started by Anonymous in MSP43013 years ago

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