Hello, I bought ads4249evm in Ti mall with order No. t0512046. When powered on, it was found that cdc72010 was very hot and the USB connection could not be recognized(ADS42xxx SPI GUI (Rev. B) and CDC72010 GUI). The measured + 5V displayed 5.2v, + 1.8va and + 1.8vd displayed 1.7V, + 3.3V_ CLK displays 3.23v and the voltage is normal. How to solve the problem. The jumper is factory set and has been checked with the user manual.thank you.
Hi Guantao,
Can you download and install the program FT_Prog and verify that the FTDI chip is being recognized by the PC as ADS4249EVM?
If the Product Description does not show ADS4249EVM, then you will have to reprogram the FTDI chip. Instructions to do this are below.
First, open FT Prog and press the magnifying glass to scan for connected devices. If multiple devices are connected, please disconnect everything except for the ADS4249EVM. This will ensure that only the correct EVM is being written to.
Right click on the FT EEPROM and select Apply Template -> From File and browse to the ADS42xx_FTDI_Template.xml file. It should be attached here:
<?xml version="1.0" encoding="utf-16"?>
<FT_EEPROM>
<Chip_Details>
<Type>FT245R</Type>
</Chip_Details>
<USB_Device_Descriptor>
<VID_PID>0</VID_PID>
<idVendor>0403</idVendor>
<idProduct>6001</idProduct>
<bcdUSB>USB 2.0</bcdUSB>
</USB_Device_Descriptor>
<USB_Config_Descriptor>
<bmAttributes>
<RemoteWakeupEnabled>true</RemoteWakeupEnabled>
<SelfPowered>false</SelfPowered>
<BusPowered>true</BusPowered>
</bmAttributes>
<IOpullDown>false</IOpullDown>
<MaxPower>90</MaxPower>
</USB_Config_Descriptor>
<USB_String_Descriptors>
<Manufacturer>FTDI</Manufacturer>
<Product_Description>ADS4249EVM</Product_Description>
<SerialNumber_Enabled>true</SerialNumber_Enabled>
<SerialNumber />
<SerialNumberPrefix>A4</SerialNumberPrefix>
<SerialNumber_AutoGenerate>true</SerialNumber_AutoGenerate>
</USB_String_Descriptors>
<Hardware_Specific>
<HighIO>false</HighIO>
<D2XX>false</D2XX>
<ExternalOscillator>false</ExternalOscillator>
</Hardware_Specific>
</FT_EEPROM>The program will show a message stating the template was successfully applied. You will notice the Product Desc: will have changed to ADS4249EVM.
Then, follow the below image by first pressing the lighting bolt icon. Ensure that there is only 1 device in the Device List checked with the Product Description labeled as ADS4249EVM. If there is a check in the box numbered as 3 below, untick this check box since we are not programming a blank device. Lastly, press the program button and wait for this to complete.
Once programming is finished, please unplug the usb cable, close out of FT Prog, reconnect the USB cable, and then re-open FT Prog. The device description should now show ADS4249EVM. Once this is verified, the FTDI programming is completed. You can close FT Prog. Please verify that the Status LED in the GUI turns green.
Thanks,
Chase
When I try to use the digital adjustable power supply IT6720 to supply power to the EVM, set the 5V output, the current limit is 0.2A, short circuit J14, the output current is 0.075A, then open circuit J14, the output current reaches 0.2A, the voltage drops to 3.64v, and cdce72010 heats.
Hi, ads4249 GUI control is ok. And I raise the current limit to 800mA，the current rise to around 5130mA @ 5V.
Thanks，The Labview GUI "Ftdi pattern file path" select where the file path is? The compressed package contains only three files "ftdi pattern generator example. exe" "ftdi"_ Pattern_ Errors.csv”“FTDI_ Pattern_ Generator.dll”
I can connect to cdc72010. Now there are two problems. The first register 0 always reads the value of 0. When I read register 1, I read register 0 again. Each time I read the value is different. The last time I read the value is 0
The second problem is to read register 1 and write register 1, but the read register value remains unchanged
