uboot loops before booting
Saw this on the default starterkit as well as our own custom uboot for a 3352 board.It loops several times before finally loading the kernel from SD. Spends about 30 seconds of a 45 second total boot...
View ArticleTLC5940 control reserve
how much should the V_led exceed the forward voltage of the led?Does the TLC need some control reserve?I tried to figure it out with the datasheet but i could not found it.with best regards,René
View ArticleTimer1 Channel 2/3 can't give PWM
Dear AllI have refereed the post " CC2540 irregular PWM output on Timer 1"and try to change the channel from 1 to 2 or 3but after I changed the channel, the P0.4 (channel 2)and P0.5(channel 3) can't...
View ArticleSensing ITRIP event
I have look through the DRV8834 and family, and will like to know if there's any method to know (feedback to mcu) whenever an ITRIP condition occurs.It seems to me that the SENSE resistors + amp is in...
View ArticleUBIFS ECC errors after multiple boot cycles
First boot of Kernel and file system OK.Second boot U-Boot has multiple ECC errors at offset 6c0000.Third boot U-Boot has multiple ECC errors at offset 6c0000 and kernel crashes.Anyone have this...
View ArticleHow to port LCK_pend( ) with timeout parameter to SYS/BIOS?
Hi,Now I want to replace the following LCK_pend( ) in SYS/BIOS:if( FALSE == LCK_pend( lock_hdl, 0xFFFFFFFF ) )According to SPRAAS7, the "LCK" module is to replaced by the "GateMutex" module. But...
View Articlecc3000 patch programmer 1.10 problem
Hello!I ported the host-driver (SP1.7) for the CC3000 module on the microcontroller LPC1765.I try to burn SP1.10 and have problem with patch programmer 1.10.Programm Patch Programmer IAR_DR_Patch stuck...
View ArticleVoltage ripple question
Quick question on voltage ripple. I built the buck regulator circuit using the MC34063. My circuit is the same as the buck regulator circuit in the datasheet that takes 25V in and outputs ~5V with a...
View ArticleC55x for loop error
Hello,I have some code// Read in data for(len=0;len<length;len++) {buffer[len] = max3421_read(0, RCVFIFO) & 0xFF; }that compiles into asmC$DW$L$_max3421_bulk_in_transfer$10$B, C$L37:0025e2: 3c04...
View ArticlePolling register bit and hardware UART on MSP430G2553
I have a very simple question regarding polling register bits. The question arises in the context of UART transmission on the msp430g2553 with a hardware UART module.Serial transmission is implemented...
View ArticleUsing TMS570LS20216 NHET Module to shift out 32/64 bits at 2 MHz
Hi there,Just before I dig further, by assuming that the NHET is clocked at a frequency capable of achieving a loop resolution lr<500 ns (2 MHz), could anyone tell me whether it is possible to use...
View ArticleAndroid and Bluetooth Smart - It works on the Samsung S3 phone
I found a nice Simple Android application you can use to test your hardware or just evaluate TI sample apps advertisment parameters.1. Use CC2540 for Packet Sniffing from the Mini Kit2. Download the...
View Article'Pin Functions' of DRV2605?
Hi There,I would like to know the functions of each 'Pin' in DRV2605? Like which one for 'EN', which one for 'SDA'.... Could any one help me to understand this?Thanks for reading.
View ArticleuDMA refusing to interrupt from Ethernet on a 28M35H52C Concerto device
Hi Santosh,ControlSuite enet_uip example runs properly on our hardware after only remapping the Ephy pins, however after I copied it into our project, the uDMA is not interrupting anymore. The...
View ArticleDRV8833 / DRV8834 - About current control (current Limit) function
[Q1]Is the current control (current limit) function of DRV8833 and DRV8834 the same principle? <my guess>I think that the DRV8833 & DRV8834 is a same principle than the following comparison...
View ArticleSync Pin of TPS40400
Hi, I am using TPS40400, I have questions about the sync pin of the IC.Should I connect the sync pin to GND if the sync pin is not used? And what do we expect if the sync pin is floating?Thanks.
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Interfacing MSP430 and SM72442
URGENT MATTER:We are a senior design team working on the design of a MPPT charge controller. We are using the SM72442 and the MSP430G2553 launchPad to read out the values from the charge controller....
View ArticleTAS5717 bass boost?
Can I use the audio processing capabilities to boost the lows in the output?Thanks!
View ArticleThe dsp hung when calling VIDDEC_process() from arm side sometimes
Hi, all, Now i use DM6441 for video process, and meet one serious problem: the dsp hung when calling VIDDEC_process() from arm side sometimes. more detailed information and testing results are as...
View ArticleEthernet packet loss with NDK 2.21
Hello,We are using the OMAP-L138 with SysBios on both ARM and DSP. In a test are we sending 8K UDP frames with a fix pattern from the ARM to a PC. As long as the CPU frequency is at 300MHz everything...
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