gcc asm output for rrc absolute mode
I'm puzzled as to why gcc is producing code for rrc as follows: f97e: 1f 42 02 02 mov &0x0202,r15 f982: 12 c3 clrc f984: 0f 10 rrc r15 f986: 82 4f 02 02 mov r15,...
View Articleenergia no unused fet error, ubuntu 14.04
So, I recently had to do a reinstall of ubuntu, and I'm unable to get energia working again with the fr5969 (wolverine). I downloaded energia, and can start it fine. Code compiles without issues. But...
View ArticleMSP430 Part # difference
Hi, What is the difference (last character) between part# MSP430G2553IRHB32R and MSP430G2553IRHB32T? Part# link here. Is the last character designator related to package quantity/carrier or...
View ArticleWIZnet ioShield-L Ethernet Booster Pack
I came across this and had not heard anyone mention it. http://wizwiki.net/wiki/doku.php?id=osh:ioshield-l:start ioShield-L is an Ethernet BoosterPack for MSP430 LaunchPad development...
View ArticleOversampling, averaging and getting confused.
I see things like 'sample the sensor 16 times then divide by 16' to reduce errors and influence caused by noise.Is that any better than running continuous 'sample the sensor and add it to the result...
View ArticleProblem with analogRead()
Hello, I have the MSP-EXP430FR5969 Wolverine Launchpad (Rev 1.6) and I'm trying to read the voltage output of a LM35 temperature sensor. I went on and used adafruit's code and adapted it to the...
View ArticleUsing TivaC TM4C123GXL + Energía + Ubuntu 14.04
Hi everyone I recently left behind windows to emigrate to Ubuntu 14.04, but I'm in troubles, I started using energia and a tiva C tm4c123gxl on windows, I did all the instalation, and a lot of programs...
View ArticleTLV Die record - how is it set?
On some series of the MSP430, as we all know, there is a chip-series-unique serial number that can made from the lot/wafer ID plus the die X & Y positions - a total of 8 bytes. How are the X...
View ArticleListing of all booster packs?
Is there a resource somewhere that lists all booster packs (Both TI and third party) and cross references them to the boards they will work with?
View Articleanother gcc asm mystery: extra register pushed but never used
Given the following C code: static uint16_t rx_buffer = 0; __attribute__((interrupt(TIMER0_A0_VECTOR))) static void SoftUART_RX(void){ register int16_t tmp = TA0CCTL0; TA0CCR0 += rx_ticks_per_bit;...
View ArticleMeArm - DIY robotic arm
I have done a few small projects with my Launchpad but want to take on a more interesting project. I will be printing a MeArm in the next couple of weeks and want to know if anyone had used a...
View ArticlebitRead() always returns 1 on LM4F120 (Launchpad stellaris)
Remove post, stupid error on user side....
View ArticleFLASH, RAM and usage calculation
Suppose you have an application like SimpliciTi that says:" low memory needs(<8kB flash and 1kB RAM depending on the configuration)", you also have in your program the Petit FAT file system: "Very...
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Arduino Uno, I2C cannot communicate with digitalpotentiometer~~!!!
I'm using AD5258 digitalpot, but my arduino cannot control it, and my program always freeze at Wire.endTransmission(); My code is quite simple, I just want to use arduino to control digitalpot so as to...
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Arduino Uno, I2C cannot communicate with digitalpotentiometer~~!!!
I'm using AD5258 digitalpot, but my arduino cannot control it, and my program always freeze at Wire.endTransmission(); My code is quite simple, I just want to use arduino to control digitalpot so as to...
View ArticleA higher performing timer UART snippet
This code snippet demonstrates a timer based UART running on a 1MHz G2231. The code starts by outputting "RESET\n" and going into full duplex loopback mode. Both the transmit and receive interrupts are...
View ArticleOne sketch multiple architectures
This is probably an FAQ but I can't find the answer anywhere - sorry. I have several Launchpads, an MSP430, TM4C123 and a TM4C129. I have the same sketch that I'd like to target at each of them but...
View ArticleHow to work with a non official github branch in Energia
I have downloaded Energia for Windows. I want to program a board with a CC430, which is not officially supported by Energia. But the code is available in github:...
View ArticleHow can I write Symbols into LCD with MSP430G2553?
Hello guys, I'm building a Holter ECG, and would like put one symbol on the LCD. Need to inform the user the level of charge that the battery has. And I would put the battery symbol so that...
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"spikes" in the ultrasonic reading
hi, i'm trying to build an array of unltrasonic sensors, i'm currently using two maxbotic sensors on the msp430G2553 launchpad. i'm switching between them using a mux (MM74HC151 multiplexer) using...
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