Part Number:DP83640
Hello support team,
I have some questions about DP83640.
Looking at the circuit diagram of "TMS570LS31x Hercules Development Kit (HDK)", it is strongly recommended to connect pull-up resistors to CRS_DV of DP83640, and to connect pull-down resistors to RXD_3 and RXD_2.
[Questions]
1. Why is it strongly recommended to use pull-up and pull-down resistors?
2. Are these resistors necessary in the case of using the other PHYs (eg TLK110 etc.) as well?
Best regards,
M. Tachibana
Part Number:AM3358
Tool/software: Linux
Hello
I have designed a custom board of AM3358 with reference as General purpose EVM.
We have SPI0 connected to one of our SPI slave and we have configured our SPI0 in the master mode. We want the spi to receive continously data from the DSP. We have observed that CS0 is not continuously clocking and periodically either stretching to high or low for a period of time and this is periodically happening. I want my CS to be continuous and this event should not happen.
What can be the problem?
Regards
Mad_hu
Part Number:BEAGLEBK
Tool/software: Linux
We have a custom board based on some TDM codecs connecting to McASP0 on the BeagleBone black. 8 TDM channels, with setting CBS CFS & the on-board McASP 24.576MHz clock for MCLK. This MCLK is shared to board above too.
I have a ti-rt 4.14 kernel with my custom driver running jackd2 with a very low period & high priority.
Have put some printks into the kernel, and I get this repeated error caused by jack xruns, restarting the soundcard.
I have patched mcasp driver so that when GBLCTL is written to, GBLCTL is readback as HERE.
This repeats over & over while jack's softmode is enabled. This only happens with really tiny period values, with 256 and above it trys to restart the card once or twice.
[ 748.951772] AUDIOTEST davinci_mcasp_start stream: 0
[ 748.956704] AUDIOTEST mcasp_start_tx
[ 748.960317] AUDIOTEST davinci_mcasp_start stream: 1
[ 748.965219] AUDIOTEST mcasp_start_rx
[ 748.969932] AUDIOTEST GBLCTL write error reg: 96 val: 1
[ 748.976214] AUDIOTEST davinci_mcasp_stop stream: 0
[ 748.976420] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
[ 748.987335] AUDIOTEST mcasp_stop_tx
[ 748.990847] AUDIOTEST davinci_mcasp_stop stream: 1
[ 748.995659] AUDIOTEST mcasp_stop_rx
[ 748.999212] davinci-mcasp 48038000.mcasp: unhandled rx event.
rxstat: 0x00000104
So first when mcasp_start_rx is called, it tries to set GBLCTL.RCLKRST and fails.
Then, when transfer occurs, the processor sets RSTAT.RCKFAIL as it has failed.
This means RCLK is failing to turn on. Which is strange as TCLK is OK.
The MCLK is onboard, and is enabled when board is turned on.
The priority of the McASP interrupts is 95, jackd is 90. Do I need to set any DMA interrupts?
DTS snippets:
pinctrl-single,pins = <
+ /* P9_25 McASP0 Transmit Master Clock (MCLK) */
+ AM33XX_IOPAD(0x9ac, PIN_INPUT_PULLUP | MUX_MODE0)
+
+ /* P9_28 McASP0 Serial Data 2 (OUT) (DAC_SDATA) */
+ AM33XX_IOPAD(0x99c, PIN_OUTPUT_PULLDOWN | MUX_MODE2)
+
+ /* P9_29 McASP0 Transmit Frame Sync (LRCLK) */
+ AM33XX_IOPAD(0x994, PIN_OUTPUT_PULLUP | MUX_MODE0)
+
+ /* P9_30 McASP0 Serial Data 0 (IN) (ADC_SDATA) */
+ AM33XX_IOPAD(0x998, PIN_INPUT_PULLUP | MUX_MODE0)
+
+ /* P9_31 McASP0 Transmit Bit Clock (BCLK) */
+ AM33XX_IOPAD(0x990, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+
+ /* Y4 MCLK oscillator disable (active-low) */
+ AM33XX_IOPAD(0x86c, PIN_OUTPUT_PULLDOWN | MUX_MODE7)
+ >;
+&mcasp0 {
+ op-mode = <0>;
+ tdm-slots = <8>;
+ serial-dir = <
+ 2 0 1 0
+ 0 0 0 0
+ 0 0 0 0
+ 0 0 0 0
+ >;
+ tx-num-evt = <1>;
+ rx-num-evt = <1>;
+};
Driver snippets:
snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AHCLK, sysclk, SND_SOC_CLOCK_IN); snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32);
What can cause this behavior with the RX Clock?
Part Number:BQ40Z60
Hello!
We are currently developing a system in which we intended to use BQ40Z60 as the gauge for a 4S1P Li-ion pack. But after not finding the Balancing Configuration[CBM] in bqstudio I searched the forum for answers and found a post in which it is stated that there is a firmware bug regarding the cell balancing. This was posted a while back so I just want to know if this bug has been fixed.
And if it is not fixed what are the present recomendation regarding using the BQ40Z60 to balance the cells? I saw it mentioned that settting the CBM to 1 that cell1 will not balance and that if CBM=0 the cells will over balance. What is ment by overbalancing the cells?
Best regards,
Carl
Part Number:BQ24171
In the datasheet there is a single cell application with the System connected to Vbat (no power path switching).
Is this also possible with 12V Adapter and a 2-cell battery? Which modifications are necessary?
Part Number:TPS61041-Q1
Hi All,
Is it OK to connect to SW and VIN with different voltage?
(12V-Coil-SWpin)
For example, VIN = 6 V, SW = 12 V
Is it OK if the absolute maximum ratings are observed?
Customer's expected voltage to be used is VIN < SW.
Best Regards,
Koji Hayashi.
Part Number:TMDXICE110
Tool/software: Code Composer Studio
Hello.
Today I again tried deal with example NIMU_ICSS_BasicExample_iceAMIC110_wSoCLib_armExampleproject. It was working. But after I tryed load my another project to FLASH and after I return to NIMU_ICSS_BasicExample, I get errors. When I working with FLASH project, I'm changed some options in CCS and not remember. After maybe, NIMU_ICSS_BasicExample was corrupted. Now I can not restore the correct operation. Removing and re-importing the project from the PDK folder gives the same result. What are the ways to resolve?
For example, NIMU_BasicExample_bbbAM335x_armExampleproject, compiles and works.
Team,
My customer has designed in the Jorjin WL1801-based module and is now going for FCC certification. Do we have any supporting documentation that states FCC certification compliance of the WL1801 device?
As far as I can tell from Jorjin's website, they have not done any FCC certification of their module.
The WL1801MOD datasheet clearly states in chapter 6.7 http://www.ti.com/product/WL1801MOD/datasheet/detailed-description#t3250938-3
Part Number:AM3352
Tool/software:TI-RTOS
Hi all,
I used BBB short connect pin UART1 RX/TX and RTS/CTS. To do the high baud rate test.
Attached is the test project.
It can pass 1843200 3686400 baud rate test. But failed at 460800 and 1500000.
When working at 1500000 If I load the program and click CCS run, failed.
If load program ->click CCS restart->click CCS run, it working well.
Could you please help this? I don't know what does CCS restart doing? And how to fix this? thanks!
BR,
Denny
(Please visit the site to view this file)
Part Number:TMS320F28379D
Tool/software: TI C/C++ Compiler
I want to write the Registers of an external IC. Therefore the data has to be send on one Pin in a strictly defined order.
To keep things readable I wrote an union for that task.
If I run the method Reg_Comm.setupt_Bitstream() the resulting Bitstreams are different depending on the compiler-opt-lvl I chose.
While using opt-lvl 0 The Bitfiled is filled with the data as expected.
But when I change the opt-lvl to 2 the data inside the Bitfiled is different at many places.
(the Data differes after the call of the private method set_Register_Data() )
I allready tried the followeing things.
- Make the union voaltile
- Make the Bitstream-Array voaltile
- delete the fuctiion set_Register_Data() and write it directly into setup_Bitstream()
None of these steps helped.
Detailed Compiler-settings:
Working:
-v28 -ml -mt --cla_support=cla1 --float_support=fpu32 --tmu_support=tmu0 --vcu_support=vcu2 -Ooff --opt_for_speed=4
Data-Corruption:
-v28 -ml -mt --cla_support=cla1 --float_support=fpu32 --tmu_support=tmu0 --vcu_support=vcu2 -O2 --opt_for_speed=4
Here is the Code:
//HEADER START HERE
#define HIGHEST_REGISTER_NUMBER 0x0C
typedef union{
struct {
uint32_t P : 1;
uint32_t DATA_CRC : 4;
uint32_t DATA : 8;
uint32_t DATA_S : 1;
uint32_t W : 1;
uint32_t R : 1;
uint32_t ADR_CRC : 4;
uint32_t ADR : 7;
uint32_t ID : 3;
uint32_t CTS : 1;
uint32_t ADR_S : 1;
}Fct_Grp;
struct{
uint32_t P_Bit0 : 1;
uint32_t DATA_CRC_Bit0 : 1;
uint32_t DATA_CRC_Bit1 : 1;
uint32_t DATA_CRC_Bit2 : 1;
uint32_t DATA_CRC_Bit3 : 1;
uint32_t DATA_Bit0 : 1;
uint32_t DATA_Bit1 : 1;
uint32_t DATA_Bit2 : 1;
uint32_t DATA_Bit3 : 1;
uint32_t DATA_Bit4 : 1;
uint32_t DATA_Bit5 : 1;
uint32_t DATA_Bit6 : 1;
uint32_t DATA_Bit7 : 1;
uint32_t DATA_S_Bit0 : 1;
uint32_t W_Bit0 : 1;
uint32_t R_Bit0 : 1;
uint32_t ADR_CRC_Bit0 : 1;
uint32_t ADR_CRC_Bit1 : 1;
uint32_t ADR_CRC_Bit2 : 1;
uint32_t ADR_CRC_Bit3 : 1;
uint32_t ADR_Bit0 : 1;
uint32_t ADR_Bit1 : 1;
uint32_t ADR_Bit2 : 1;
uint32_t ADR_Bit3 : 1;
uint32_t ADR_Bit4 : 1;
uint32_t ADR_Bit5 : 1;
uint32_t ADR_Bit6 : 1;
uint32_t ID_Bit0 : 1;
uint32_t ID_Bit1 : 1;
uint32_t ID_Bit2 : 1;
uint32_t CTS_Bit0 : 1;
uint32_t ADR_S_Bit0 : 1;
}Bits;
uint32_t Hex;
}Register_Bitstream;
class Reg_Comm{
public:
void setup_Bitstream();
Register_Bitstream Bitstream[HIGHEST_REGISTER_NUMBER + 1];
private:
void set_Register_Adr();
void set_Register_Data();
};
//HEADER ENDS HERE
//CPP START HERE
#define ENCDS 0
#define M2S 0x00
#define SELRES 0x03
#define HYS 0x00
#define SELSSI 1
#define CRC6 0
#define NZB 0
#define RPL 0
#define AERR 0
#define FERR 0
#define FCTR 0x0004
#define GRAY 0
#define TMODE 0x00
#define TIMO 0
#define TMA 0
#define TOA 0
#define RATIO 0x00
#define GAIN 0x06
#define SINOFFS 0x00
#define COSOFFS 0x00
#define REFOFFS 0
#define PHASE 0x00
void Reg_Comm::setup_Bitstream(){
set_Register_Adr();
set_Register_Data();
for(int i = HIGHEST_REGISTER_NUMBER; i >= 0x00; i--){
Bitstream[i].Fct_Grp.ADR_S = 1;
Bitstream[i].Fct_Grp.CTS = 1;
Bitstream[i].Fct_Grp.ID = 0b000;
/*Bitstream[i].Fct_Grp.ADR_CRC = calculate_CRC( (uint16_t) Bitstream[i].Fct_Grp.ADR
+ ( ((uint16_t) Bitstream[i].Fct_Grp.ID) << 7)
+ ( ((uint16_t) Bitstream[i].Fct_Grp.CTS) << 10)
, 11);
*/
Bitstream[i].Fct_Grp.R = 0;
Bitstream[i].Fct_Grp.W = 1;
Bitstream[i].Fct_Grp.DATA_S = 1;
/*Bitstream[i].Fct_Grp.DATA_CRC = calculate_CRC(Bitstream[i].Fct_Grp.DATA
, 8);
*/
Bitstream[i].Fct_Grp.P = 0;
}
}
void Reg_Comm::set_Register_Adr(){
for(uint16_t i = 0; i <= HIGHEST_REGISTER_NUMBER; i++){
Bitstream[i].Fct_Grp.ADR = i;
}
}
void Reg_Comm::set_Register_Data(){
// the data can be changed just by updating the #define
// Register 0x00
Bitstream[0x00].Bits.DATA_Bit7 = ENCDS;
Bitstream[0x00].Bits.DATA_Bit5 = (M2S & 0x01) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit6= (M2S & 0x02) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit0 = (SELRES & 0x01) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit1 = (SELRES & 0x02) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit2 = (SELRES & 0x04) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit3 = (SELRES & 0x08) ? 1:0;
Bitstream[0x00].Bits.DATA_Bit4 = (SELRES & 0x10) ? 1:0;
// Register 0x01
Bitstream[0x01].Bits.DATA_Bit5 = (HYS & 0x01) ? 1:0;
Bitstream[0x01].Bits.DATA_Bit6 = (HYS & 0x02) ? 1:0;
Bitstream[0x01].Bits.DATA_Bit7 = (HYS & 0x04) ? 1:0;
// Register 0x02
Bitstream[0x02].Bits.DATA_Bit6 = SELSSI;
// Register 0x03
Bitstream[0x03].Bits.DATA_Bit7 = CRC6;
Bitstream[0x03].Bits.DATA_Bit6 = RPL;
Bitstream[0x03].Bits.DATA_Bit1 = AERR;
Bitstream[0x03].Bits.DATA_Bit0 = FERR;
// Register 0x04
Bitstream[0x04].Fct_Grp.DATA |= (uint16_t) (FCTR & 0x00FF) << 7;
// Register 0x05
Bitstream[0x05].Bits.DATA_Bit7 = GRAY;
Bitstream[0x05].Bits.DATA_Bit0 = (FCTR & 0x0100) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit1 = (FCTR & 0x0200) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit2 = (FCTR & 0x0400) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit3 = (FCTR & 0x0800) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit4 = (FCTR & 0x1000) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit5 = (FCTR & 0x2000) ? 1:0;
Bitstream[0x05].Bits.DATA_Bit6 = (FCTR & 0x4000) ? 1:0;
// Register 0x06
Bitstream[0x06].Bits.DATA_Bit5 = TIMO;
Bitstream[0x06].Bits.DATA_Bit1 = (TMODE & 0x01) ? 1:0;
Bitstream[0x06].Bits.DATA_Bit2 = (TMODE & 0x02) ? 1:0;
Bitstream[0x06].Bits.DATA_Bit3 = (TMODE & 0x04) ? 1:0;
Bitstream[0x06].Bits.DATA_Bit0 = TMA;
// Register 0x07
Bitstream[0x07].Bits.DATA_Bit3 = TOA;
// Register 0x08
Bitstream[0x08].Bits.DATA_Bit4 = (GAIN & 0x01) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit5 = (GAIN & 0x02) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit6 = (GAIN & 0x04) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit7 = (GAIN & 0x08) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit0 = (RATIO & 0x01) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit1 = (RATIO & 0x02) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit2 = (RATIO & 0x04) ? 1:0;
Bitstream[0x08].Bits.DATA_Bit3 = (RATIO & 0x08) ? 1:0;
// Register 0x09
Bitstream[0x09].Fct_Grp.DATA |= SINOFFS << 7;
// Register 0x0A
Bitstream[0x0A].Fct_Grp.DATA |= COSOFFS << 7;
// Register 0x0B
Bitstream[0x0B].Bits.DATA_Bit2 = (PHASE & 0x01) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit3 = (PHASE & 0x02) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit4 = (PHASE & 0x04) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit5 = (PHASE & 0x08) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit6 = (PHASE & 0x10) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit7 = (PHASE & 0x20) ? 1:0;
Bitstream[0x0B].Bits.DATA_Bit1 = REFOFFS;
Bitstream[0x0B].Bits.DATA_Bit0 = (RATIO & 0x10) ? 1:0;
}
//CPP ENDS HERE
Part Number:TMS320F28377S
Hello
I have a custom board inspired from F28377 controlCard.
I have a code directly inspired from the usb_dev_serial exemple.
When the USB cable is linked to a computer on Windows 10 64bits, the drivers is installed automatically in few second.
The device is seen like "USB Serial peripheral". Not need to specify a specific drivers.:
The "Serial" communication work properly.
Now, I Plug the board on a computer with Windows 7 64 bits.
Device is detected with the name I has put in the µC ("SMD Device") but drivers is not found by windows. Then I try to indicate the following repository to search:
C:\ti\c2000\C2000Ware_1_00_03_00\utilities\windows_drivers
I also try the old way:
C:\ti\controlSUITE\device_support\F2837xS\v210\F2837xS_common\windows_drivers
I have the following message:
Windows could not install your SMD Device.
Windows did not find any drivers for your device.
If you know the manufacturer of your device, you can visit their website and consult the Technical Support section .... "
Is somebody has an idea to get a working driver for windows 7? Some post relate this problem on this forum, but never with this kind of problem.
Thank
Hello,
I really need a reasonable priced BLE sniffer that supports both LE 2M and LE Coded PHYs that BLE 5 introduced. The only solutions I seem to find commercially available are really expensive (from Ellisys & Frontline)
When will you introduce an update of CC2540 sniffer dongle or something similar that supports BLE 5 features? If not soon, is there any BLE 5 compatible sniffer that you can point at?
Part Number:TMS570LC4357
Hi,
We are developing a new hardware, on which we have a TMS570LC4357 and would like a JTAG interface from the outside of the system.
Our HW supplier is challenging the need of nRST, nTRST and RTCK signals, because they would like a standard chip used to demux (there will be at least 6 JTAG devices able to communicate on that interface).
This interface is mainly intended for software flashing in the CPU internal flash, but during development some issues may need to be debugged using this interface.
In order to support those 2 main needs (flash programming and debugging), do we need those signals (nRST, nTRST, RTCK) in this connector?
My current assumptions are:
If I am going with a connector with no nRST, no nTRsT and no RTCK, what debugging features will be limited or unavailable?
Best regards,
Gael
Part Number:TDA2P-ACD
Tool/software:TI-RTOS
Hello,
Is it possible to use the Network Tx/Rx tools available in Processor SDK 03.02 for sending and receiving data other than video frames (data such a file or any data structure for that matter).
If yes, what needs to be modified in the code and what commands shall be used for data transfer.
Regards,
Abhay
the input voltage of tps63002 is 3.8v,i want to get a output voltage is 5v by the controller pin sleep_pen3,the sleep_pen3 is the voltage supplied by the mcu,
i want to get a output voltage is 5v when the sleep_pen3 is 3.3v,and get a output voltage is 0v when the sleep_pen3 is 0v,however,sometimes the output voltage of tps63002 is 5v,sometimes the output voltage of tps63002 is only 3.3v.
Part Number:TIDA-00322
Hi SIR,.
Is it possible for cost down UCC27531 instead of BJT, TPS61170 for charge pump?
or one of the parts for this reference besides ultrasonics,..
Part Number:MSP430F5419A
We have a device that collects information. The device can operate without interruption for a long period of time. Sometimes the microcontroller freezes and the watchdog timer restarts it. After that, the microcontroller again hangs on the command permission interruption (UCA2IE |= UCRXIE;). GIE on this moment are disabled. Reset in this situation does not help. Only a complete turn off the power and further turn on restart the microcontroller.
Someone had such a problem?
Is there a solution?
Part Number:AM5728
Tool/software: Code Composer Studio
hi,
we have designed the custom board with AM5728, now after assembly of custom board how to make use of board for running the application.
we have evaluation board, software development done on it. In the same way, we want to proceed on custom board.
In evaluation board, once power up all bsp's are pre-build and it make ready for use.
In custom board what to be done to make it ready for use. our custom board is one to one to evaluation (processor, pmic,ddr, emmc, sd, nand flash, spi etc)
regards
satya