Uis8141e Firmware -

// Example I2C sequence (C pseudo-code) uint8_t fw_buf[128*1024]; FILE *fp = fopen("uis8141e_fw.bin", "rb"); fread(fw_buf, 1, sizeof(fw_buf), fp); // Enter firmware update mode i2c_write(0x42, 0x00, 0xA5); // unlock i2c_write(0x42, 0x01, 0x5A); // enter bootloader

UIS8141E_fw_v3.02.bin UIS8141E_fw_v3.01_60fps.bin ⚠️ Do not mix firmware for UIS8141E (ToF) with UIS8141 (IR-only) – they are not interchangeable. Method A – Via USB (if module has onboard USB bridge) Most evaluation modules expose a USB port (FTDI or CH340). The flash is accessible over I2C via USB. uis8141e firmware

If version matches expected and no CRC errors appear in dmesg , flash is successful. | Symptom | Likely Cause | Solution | |---------|--------------|----------| | No /dev/video* | Wrong firmware for USB PID/VID | Reflash matching USB descriptor firmware | | Depth values all zero | Firmware missing calibration | Upload factory calibration (separate .cal file) | | Sensor resets repeatedly | SPI flash corruption | Erase flash, reflash, verify checksum | | I2C error after update | Bootloader stuck | Pull BOOT pin low for 2s during power-on | 7. Backup Current Firmware Before updating, always back up the existing firmware: If version matches expected and no CRC errors

// Exit & restart i2c_write(0x42, 0x00, 0x00); // exit update mode After power cycling: FILE *fp = fopen("uis8141e_fw.bin"