Tool/software: TI-RTOS
Hi TI team
i have config UIA,but there are no data in live session or any graph to se in Execution Graph, and everytime i restart CCS it have to install RTOS Analyzer before i can use it... Does anyone know that is the problem?
Part Number:TPS65987D
Hi Team,
I noticed that TPS65987D doesn't has billboard function in itself.
1. Are there any event to let other device know the billboarding timing?
2. In the case using TUSB8044 with TPS65987D, How should we connect these devices to support billboard function?
If there are any example block diagram or schematic, please share it.
Regards,
Takashi Onawa
Part Number:ADC128S102QML-SP
Hi TI,
I have two situations I need some assistance with, one is short term one is long term:
Short term (i.e. I'm going to fix this problem, but I want to know if my near-term measurements are going to have significant errors):
My system has two of the 8 inputs on this ADC connected. Each line input a series resistance of ~475 ohms, as well as a 100nF shunt capacitance. The shunt capacitance is very close to the associated input pin. Whenever I'm sampling one of the inputs, the other input is set to a voltage higher than the rail, such that (assuming the high-side ESD diode is at a 0.3V drop) there is about 4mA of current going into the input pin. What kind of error to the measurement will this introduce to the channel that is being sampled? Will the ESD diode current raise the "measured" VA, effectively degrading the reference? Do you have any insight as to how severe this effect will be?
Long term (I want to run my system for a long time (months to years) under these conditions):
My system will again have two of the 8 inputs on this ADC connected. One of these connections will experience about -6mA of input current for less than 100ms every second (alternatively it could experience +4mA of input current for less than 100ms every second, in case the polarity is important). The rest of the time the ESD diodes should not have any current flow. The datasheet claims an absolute maximum ESD diode current (calls it input current) of 10mA per pin with a 2 pin maximum. I'm wondering if this condition, less than 10mA but not significantly less, with a duty cycle of 10% would tend to degrade reliability and performance, or if it's likely to cause negligible degradation of reliability or performance.
Thanks,
Max
Part Number:TPS7H1101A-SP
Hello -
When Vin < Vout(set), how does Vout behave? For instance, if I have the regulator set to provide 3.3V and Vin<=3.3V, does Vout track Vin? If so, how close is the tracking, and is it load-current dependent? My application cannot guarantee that Vin stays greater than Vout(set)+Vdropout, so I am trying to evaluate how the regulator behaves. Do other functions behave appropriately in this condition? (e.g. current limit, shutdown, etc.).
Thank you,
Brian
Part Number:MSP430I2041
TI,
How do we obtain such a low level of %error when using internal Rosc mode for DCO?
tidu454a, page 13, schematic shows 'Rosc' floating? For internal resistor DCO mode, it should be tied to AVSS. For external mode, there should be an external resistor to AVSS.
I duplicated the schematic but added an accurate, external resistor but they did not get the same accuracy of < 1% error?
Regards,
Marc
Part Number:TPS54561
This part is supposed to be able to output up to 5A continuously, but the output SW pin only allows a trace that is 0.32mm thick, this is the thickness of the recommended pad size for the IC footprint. On 2 oz/ft^2 copper, with external trace layers exposed to air, 0.32mm only allows 1.7A. So, how is this device supposed to be able to output 5A?
Part Number:66AK2G12
Tool/software: Linux
Hello,
My company is working on the production PCB layout for a new design using the K2G. We had initially hoped to use the GPMC NAND interface, but discovered that was not supported. We are now trying to use the SD interface; however, we are using every MCASP0 pin and this conflicts with SD/MMC0 Card Detect line.
In the TRM, table 11-1877 states that the card detect input signal is optional and depends on the system integration and type of connector housing that accomodates the card.
We know that not using the card detect line would make us unable to tell if the card has been inserted or removed, but since this will be the boot media and filesystem storage for the system, we are not worried about a hot-swap condition.
Is the Card Detect line optional for SD Boot (ROM Bootloader AND U-Boot) on MMC/SD Peripheral Zero, and are there any special considerations we need to be aware of?
Thank you,
Jeff
Part Number:TMS320F28379D
Hi
In type 4 ePWM's Action Qualifier submodule, there are 2 signals named T1 and T2(see below).
Where do they come from?
thanks,
Jiakai
Part Number:PROCESSOR-SDK-AM437X
Tool/software: Linux
I'm designing a board with the AM4378. We started designing based on the AM437x Starterkit and are currently using Linux SDK 4.3.0.5 with a build of the core image. I can't seem to find a working procedure to remove the ethernet connection on 'eth0' (RGMII1) and just use 'eth1' (RGMII2). I followed the steps from the post: http://e2e.ti.com/support/arm/sitara_arm/f/791/t/391961 which made the linux image only see one ethernet connection (eth0) but both ports on the starterkit remained active. Only 'eth0' showed up when I ran ifconfig, but 'eth0' was assigned an IP address regardless of the port I plugged the cable into. For our application we have to use some of the pins associated with RGMII1 for eMMC on MMC1 since that is the only bootable pinout for MMC1 so I have to be able to dissociate those pins from RGMII1.
The section of the devicetree that appears to be relevant is: (starterkit settings)
&mac {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
dual_emac = <2>;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <4>;
phy-mode = "rgmii";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <5>;
phy-mode = "rgmii";
dual_emac_res_vlan = <2>;
};
The settings I tried following the recommendations in the previously linked post resulted in this section in the file am437x-sk-evm.dts:
&mac {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <4>;
phy-mode = "rgmii";
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <5>;
phy-mode = "rgmii";
};
I've also tried reversing the pin order in the cpsw section of the pinmux
What I want, but what I'm clearly not coding correctly is something like:
&mac {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <5>;
phy-mode = "rgmii";
}
Part Number:UCC28780
I'm using the Mathcad documents from sluc644. In the "Neutron..." worksheet there is a test to make sure the 40 ns delay T.DPWML_H (plus driver delays) is greater than the actual circuit rise time at the switching node (T.rise_max). The test works fine in the original worksheet, but only because the calculation for C.sw_T (total switch node capacitance) uses a fixed value of 40 pF for C.oss_Q_T (the time-based Coss for the primary switch FET).
I can't find any FETs, GaN or Si, which have this low a time-based Coss. Typical GaN FETs seem to run more like 200 - 300 pF, and that causes the T.DPWML_H test to fail. It is suspicious that the C.oss_Q_T in the worksheet is fixed at 40 pF rather than being voltage-dependent. It's like someone stuck 40 pF in there to make the formula work. This affects other calculations too.
To get around this should I run the UCC28780 with SET = 5V to select a Si switch even though I'm using GaN? Will that provide enough delay on T.DPWML_H and not cause other problems?
Thanks for any help.
Part Number:BQ34Z100
I have a 8S10P (28.8V 26Ahr) pack with a bq34z100. I tried to follow the documentation but some of the terminology doesn't seem to match bqstudio 1.3.80. Is "UPDATE_STATUS" now "LEARNED_STATUS"? The RUP_DIS, VOK, aand QEN all seem to behave correctly. The LEARNED_STATUS was 4 at the start, 4 during charge, 5 during discharge, and 6 once VOK was green again. I never saw any updates to the RA tables at any time. I was discharging at C/5 (5 amps). I use the manufactures recommendation of chemistry selection Samsung ICR18560-26H. Attached are the log files. I'm sure I missed a setting.
Thanks(Please visit the site to view this file)
Part Number:LAUNCHCC3220MODASF
Hi,
I have a custom board which has the CC3220MODASF module mounted. This module has 1MB flash included so I did not add any further external flash.
Now I am wondering if this 1MB is enough for a "normal" application?
I know it hardly depends on my application. Here is briefly what I am doing:
Thanks for your advice.
Best,
Henry
Part Number:DP83867IR
Hello,
I am trying to do some simulations using this DP83867 GPHY, but it seems like it has an incorrect output type on the TX_CTRL signal. I believe this should be an input signal not an output signal. Also, one of the datasheets has it as an input, while the other has it as an output. See DP83867CS and DP83867IR.
Can someone please fix and update this model?
Thank you,
Will Alarcon
Part Number:MSP430F167
Hi
I got a new mac laptop and put Parallels + Windows 10 on it. USB2ANY driver based GUIs work just fine. But MSP430F167 based GUI doesn't work.
I've read a few threads on this topic and installed all the drivers from here: http://www.ti.com/tool/mspds. But it still doesn't work -- In the device manager, I see a warning when MSP430 is connected and I'm unable to update using the drivers downloaded from the above link.
Could somebody please help?
Thank you,
-Harini
Part Number:MSP432P401R
Tool/software: Code Composer Studio
I'm currently trying to program an FFT algorithm onto my MSP432 and am running into an error in which half way through the program, several of the variables have values assigned to locations outside of the SRAM_DATA. Specifically, SRAM_DATA is limited between 0x20000000 and 0x20010000 while the variables are starting in location 0x1FFFFFB8. Because of this faulty assignment, I receive the error "Memory map prevented reading 0x1F..."
As a beginner, I'm not very familiar with memory management for different types of variables. What determines the memory location in which variables are stored? How is this dependent on the type of variable it is?
One strange occurrence is when I reduce the FFT length from 2048 (taking up 16% of flash and 3% of ram) to 1024, the algorithm works perfectly. I understand that increasing the array size enough will eventually run out of memory, but I should be nowhere near that limit. I've also noticed that declaring the variable as static removes the prevented reading error from that variable, but still errors later in the program. Any advice is much appreciated!
Part Number:ADS8920BEVM-PDK
Hello,
I am unable to install the drivers for the ADS8920. When I execute driverInstall.exe I receive the following output, followed by a status 'install failed'.
Output:
Running dpinst depending on the underlying platform
We are on a 64 bit OS.
CreateProcess succeeded
INFO: Option set: dumping log info to console.
INFO: Current working directory: 'C:\Program Files (x86)\Texas Instruments\ADS8920 EVM\PHI Driver'
INFO: Running on path 'C:\Program Files (x86)\Texas Instruments\ADS8920 EVM\PHI Driver'
INFO: No valid 'dpinst.xml' file provided.
INFO: Install option set: legacy mode on.
INFO: Found driver package: 'C:\Program Files (x86)\Texas Instruments\ADS8920 EVM\PHI Driver\TI_USB_PHI.inf'.
INFO: Preinstalling 'c:\program files (x86)\texas instruments\ads8920 evm\phi driver\ti_usb_phi.inf' ...
INFO: ENTER: DriverPackagePreinstallW
INFO: RETURN: DriverPackagePreinstallW (0xE000024B)
Am I missing a dpinst.xml file? I tried running as admin, and the associated .bat file with no luck.
Help will be very appreciated.
Thank you,
-Ryan
Part Number:OPT3007
Hi, im creating this footprint library on eagle , and i would like to know how i can make the center cutout, its dimensions depends on the application ?, the cutout is the same for all applications or is apart from footprint library , and i have to create it especifically in the pcb layout ?
Part Number:TMDSIDK437X
Hello,
I am looking for information on this part of the dev kit:
The IC we see on the left side is the FT2232H USB to JTAG converter. What i don't understand is what the warm-reset is used for and how it is triggered from the GPIOs of the FT2232H. There is an EPROM connected to the converter so I am thinking that the logic is probably programmed in there.
In brief, I am trying to understand what this logic is and why it is there?
Thank you for any information you might have, if you need more info from me, do not hesitate to ask.