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  • ADS7845: wrong DOUT output value

    TI Thinks Resolved
    Part Number: ADS7845 Tool/software: Hi team, My customer use the ADS7845 for the first time, below is the schematic: They have two questions: 1. How to handle the PENIRQ pin? should we connect this signal to the host MCU? please help further explain…

  • ADS7845: touch screen controller: wrong readings

    Part Number: ADS7845 Other Parts Discussed in Thread: ADS7846 Hi, we are using an ADS7845 touch screen controller in our NXP iMX8MP board. We are using Linux kernel version 5.15 with the in-tree ads7846 driver (which supports ADS7845 as well). Driver source…

  • ADS7845: Any GUI or example code for ADS7845?

    TI Thinks Resolved
    Part Number: ADS7845 Hi team, Is there any example driver code for ADS7845 based on C code? Also, do you know if TI has any tools or GUI able to write ADS7845 C driver code through ADS7845 SPI interface? Thanks and best regards Yunjing

  • TSC2046: how to improve the Sensitivity of touch

    Part Number: TSC2046 Tool/software: hi sir I use TSC2046 as a touch screen sensor I need to press the button hard and the TSC2046 accepts it. If I touch the button lightly, the TSC2046 does not receive the signal. How to improve touch sensitivity t…

  • RE: Linux/ADS7845: Linux/ADS7845: It can't work and what is problem?

    Hi Aaron, I have set X-max and Y-max to 4096*4096 or 1024*768.But it still does not work. I saw the printy info " "external vREF for ADS7845 not spectified." when linux start, like below pic. And I add below info "ti,vref-mv = <&reg_3p3v…

  • TSC2046: TSC2046 not work in TI SDK10 (AM62P)

    TI Thinks Resolved
    Part Number: TSC2046 Other Parts Discussed in Thread: AM62P , , ADS7846 Tool/software: Hi TI experts, Our board is using TI AM62P SOC with SDK10 (kernel 6.6). we have a TSC2046 touch in mcu_spi0 and GPIO0_7 for pen interrupt So my dts as below &main_pmx0…
    • Answered

  • ADS7845: LSB of SPI clocked data is always either 0x78 or 0xF8

    Resolved
    Part Number: ADS7845 Touchscreen: FTAS00-10.4A-5 (5-wire) TS Controller: ADS7845 on the TI ADS7845 Eval Kit Input Voltage: 3.3V VREF is N/C to allow for Differential (no jumpers on JMP1) wiring from Touchscreen to header on Eval Kit triple checked. Generally…
    • Resolved

  • ADS7845: ADS7845 - DOUT 12bit all High when the panel be touched.

    Part Number: ADS7845 Hi experts, We are testing our ADS7845, but we found the datasheet mentioned: the DOUT will be 12bit all High when the panel be touched. datasheet Page 12. But during the test in customer's board, we found the MSB 11bit is all high…

  • TI-API: No information via API

    TI Thinks Resolved
    Part Number: TI-API Other Parts Discussed in Thread: ADS7845 Dear Sir or Medam, we are using the Order API in our suppy chain tool MiG (we are the developers of this tool) and we are currently testing all the implemented API's. Therefore we were searching…
    • Answered

  • Linux/ADS7845: wiper pin and linux device driver

    Resolved
    Part Number: ADS7845 Tool/software: Linux Hello, We are designing a 5 wire touch interface to our sitara processor using ad7845, need to clarify the below: 1) what should be connected to the "WIPER" pin id AD7845? whats its functionality, is it used in…
    • Resolved

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