Posts by Gordon

  • fsimx8ulp-Y2024.12-pre flashig emmc

    I built yocto image of fsimx8ulp-Y2024.12-pre. But I can't flash the sysimg file to emmc.


    Code
    1. sudo ./uuu -b emmc_all ./fus-image-std-fsimx8ulp.sysimg
    2. uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.182-0-gda3cd53
    4. Success 0 Failure 1
    6. 1:4-5BF0BB3B 1/ 1 [This wic have NOT terminate tag after ] SDPS: boot -scanterm -f ./fus-image-std-fsimx8ulp.sysimg -scanlimited 0x800000
    Code
    1. sudo ./uuu -b emmc_all ./u-boot.bin ./fus-image-std-fsimx8ulp.sysimg
    2. uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.182-0-gda3cd53
    4. Success 0 Failure 1
    6. 1:4-5BF0BB3B 1/ 1 [HID(W): LIBUSB_ERROR_NO_DEVICE (-4) ] SDPS: boot -scanterm -f ./u-boot.bin -scanlimited 0x800000

  • Wifi doesn't work.

    "lib/firmware/mrvl/sdsd8997_combo_v4.bin" doesn't exist although "CONFIG_MWIFIEX_SDIO" is enabled.

    But exits "/lib/firmware/nxp/sdiouart8997_combo_v4.bin". If copy "/lib/firmware/nxp/sdiouart8997_combo_v4.bin" to "lib/firmware/mrvl/sdsd8997_combo_v4.bin"


    Code
    1. /* Same error */
    2. mwifiex_sdio mmc1:0001:1: Direct firmware load for mrvl/sdsd8997_combo_v4.bin failed with error -2
    3. mwifiex_sdio mmc1:0001:1: Falling back to sysfs fallback for: mrvl/sdsd8997_combo_v4.bin
    5. /* But */
    6. mwifiex_sdio mmc1:0001:1: info: FW download over, size 625948 bytes
    7. mwifiex_sdio mmc1:0001:1: WLAN FW is active
    8. mwifiex_sdio mmc1:0001:1: Unknown api_id: 5
    9. mwifiex_sdio mmc1:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (16.92.21.p84)
    10. mwifiex_sdio mmc1:0001:1: driver_version = mwifiex 1.0 (16.92.21.p84)

  • Wifi doesn't work.

    Code
    1. mwifiex_sdio mmc1:0001:1: Direct firmware load for mrvl/sdsd8997_combo_v4.bin failed with error -2
    2. mwifiex_sdio mmc1:0001:1: Falling back to sysfs fallback for: mrvl/sdsd8997_combo_v4.bin
    3. mwifiex_sdio mmc1:0001:1: Failed to get firmware mrvl/sdsd8997_combo_v4.bin
    4. mwifiex_sdio mmc1:0001:1: info: _mwifiex_fw_dpc: unregister device

  • Linux UART_B

    Ok,

    I'm trying to use uart_c and getting high latency. I was looping TX to RX. I'm sending 39 bytes. Start timer and wait for recv of all 39 bytes. Latency is around 57 ms. How to reduce this latency?