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Recent content by flote21

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    [SOLVED] Lattice FPGA: issue solved after re-flashing the same binary

    The issue has been solved. A wrong FPGA version was used in production. Thanks for your support.
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    [SOLVED] Lattice FPGA: issue solved after re-flashing the same binary

    Hello! thanks for your quick replies. I am wondering that if the issue is coming from the flashing process, the Lattice flashing tools should drive an error once the bit file is verifyed after the flashing correct? However, the software tool always report the a correct flashing of the bit file...
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    [SOLVED] Lattice FPGA: issue solved after re-flashing the same binary

    Hello! Thanks a lot for your replies. But theoretically the process is done in the right way: - We are using the official hardware from Lattice. Not third vendors tools. - The issued bit file has been read it and compare it with a proper working bit file and they match! - The issued Lattice FPGA...
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    [SOLVED] Lattice FPGA: issue solved after re-flashing the same binary

    Hello! I am wondering about the issue described on the title of this thread. I am using a crosslink-nx from Lattice to adapt video Interfaces. And during the serial production of the PCBA, 10% of the units are not working as expected. In normal working, the FPGA should drive an RGB display...
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    Universal component libraries for different ECAD tools

    Hi! Yes I know the suppliers.But my idea is to create like a internal database with sch symbols and footprints where the three ECAD tools can use it... It is somthing customized for my company.. Greetings
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    Universal component libraries for different ECAD tools

    Hello! Im my company we are using Altium, PADs and Kicad to the ECAD desgin. And every tools is using its own library extension. So a lot of time is spending to create the symbols and footprints in all the different ECAD tools. Is there any smart way to use like a generic library extension...
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    CRC module on ADS7138

    Hello guys! I am wondering what i am doing wrong with the CRC funcionality of the ADS7138. The following register configuration works properly and configure the ADC on an autonomous mode: ADC Register Value 0x05 0x00 0x01 0x02 0x12 0xFF 0x17 0x01 0x14 0xFF 0x04 0x35 0x01 0x30...
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    [SOLVED] Strange behavior of a differential opamp.

    Hi! I have already solved the problem. It was correct the pulses were at the input of the current opamp and they are magnified because its 100 gain. Changing the working mode of the LED driver solved the problem... thanks for your help
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    [SOLVED] Strange behavior of a differential opamp.

    Hello. I checked that the pulses are generated by the opamp. There is not pulses at the inputs and neither the power supply ... It looks like the opamp is working like an aestable for very low currents...but i don get it because this opamp is designed specifically for this applications...
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    [SOLVED] Strange behavior of a differential opamp.

    Hello people! I am using the following current sense opamp from TI: INA293A3 connected on this way The device is working very nice from when the output of this devide is on the range from 700mV to 3.3V. I measure with the oscilloscope a very nice continues dc voltage waveform. However when...
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    [SOLVED] LCD power supply source: TPS65150

    Hello folks! I am wondering about how to setup a custom VCOM on the TPS65150. According to the datasheet and some aplication examples, VCOM is outputing the voltage of the "IN" input correct? Is there any GAIN or in the following exmple, VCOM=VS/2? Thanks in advance Greetings
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    It is possible to configure a buck converter with a negative output?

    Hi again. So it means that the simulations i run with ltspice on post #10 are wrong and on the real world, this buck converter will never output -10V? Greetings
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    It is possible to configure a buck converter with a negative output?

    Hi! Yes. The negative power supply must share the GND with the other positive power supplies. The is the reason because I am not sure if the approach with the buck converter could cause some issue in the GND plane.... To be honest your charge pump approach looks a smart way to get the -10v. But...
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    It is possible to configure a buck converter with a negative output?

    Hi thanks for the replies. There is an evalkit of the LT8618 with the negative functionality (See attachement). On the schematics of the evalkit it is possible to appreciate the negative output: I tried to run a simulation following the schematic, but at the beginning there is a positive...
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    It is possible to configure a buck converter with a negative output?

    Hi!! Thanks again for your feedback. finally I have selected another buck converter with higher input voltage: LTC8618. Same working principle of the previous one but with higher input voltage. See below the simulations. However I am wondering about how to do the routing of the GND...
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