HUABAN CH341B 24 25 Series Flash BIOS USB Programmer User Manual

Introduction

The HUABAN CH341B 24 25 Series Flash BIOS USB Programmer is a versatile tool designed for programming 24 and 25 series SPI Flash 8-pin/16-pin chips. This device features a CH341B chip, enabling efficient and reliable programming operations. It also functions as a USB to TTL port, allowing for online rooting capabilities. The programmer is equipped with status indicators for 24/25 series chips and supports automatic identification of 25 series chips, simplifying the programming process. Additionally, it supports downloading STC series single-chip programs and offers extended practicality through its SPI pins.

Product Components

The product package typically includes the following components:

• 1 x USB Programmer (CH341B unit)
• 1 x Notice Board (often refers to the adapter board for different chip sizes)

Figure 1: Front view of the CH341B USB Programmer. This image displays the main programmer unit with its USB connector, the CH341A chip, and the ZIF (Zero Insertion Force) socket for chips. Also shown are a green adapter board for different chip packages and two sets of yellow pin headers.

Figure 2: Back view of the CH341B USB Programmer. This view highlights the reverse side of the programmer, showing labels for various pins such as CLK, CS, MOSI, MISO, GND, 3.3V, and 5V, which are crucial for connecting to target devices. It also indicates support for 25 SPI, 24 I2C, and EEPROM chips.

Figure 3: Green adapter board. This board is designed to accommodate different chip packages, specifically 8-pin and 16-pin SPI Flash chips, allowing them to be inserted into the programmer's ZIF socket.

Setup

1. Driver Installation: Before connecting the programmer to your computer, it is essential to install the necessary drivers for the CH341B chip. These drivers are typically available from the manufacturer's website or included on a mini-CD with the product. The programmer is compatible with Windows, macOS, and Linux operating systems.
2. Connect to Computer: Insert the USB programmer into an available USB port on your desktop or laptop computer. The device is powered via the USB connection.
3. Prepare Chip: Identify the type of SPI Flash chip you intend to program (24 series or 25 series, 8-pin or 16-pin). If your chip is not compatible with the ZIF socket directly, use the provided adapter board. Carefully insert the chip into the ZIF socket or the adapter board, ensuring correct pin orientation.
4. Software Installation: Install the programming software compatible with the CH341B programmer. This software is required to interact with the programmer and perform read/write operations on the chips.

Operating Instructions

Once the programmer is set up and the software is installed, you can proceed with programming operations:

1. Launch Software: Open the CH341B programming software on your computer.
2. Detect Chip: The software should automatically detect the connected programmer and, in many cases, automatically identify the 25 series chip inserted into the socket. For 24 series chips, manual selection might be required.
3. Read/Write Operations:
   • To read the contents of a chip, select the "Read" option in the software. The data will be loaded into the software's buffer.
   • To write data to a chip, first load the desired firmware or data file into the software's buffer. Then, select the "Write" or "Program" option. It is often recommended to erase the chip first before writing new data.
   • The programmer features 24/25 status indicator lamps which provide visual feedback on the programming process (e.g., power, read, write activity).
4. Verify Data: After writing, it is good practice to verify the data on the chip against the source file to ensure successful programming.
5. USB to TTL Functionality: The programmer can also be used as a USB to TTL serial converter. Connect the TX, RX, and GND pins of the programmer to your target device's serial port. This is useful for debugging, flashing microcontrollers, or accessing device consoles.
6. STC Series Program Download: The device supports direct downloading of programs to STC series single-chip microcontrollers. Refer to the specific STC programming guide for detailed steps.
7. SPI Pin Extension: The exposed SPI pins (CLK, CS, MOSI, MISO) allow for advanced applications and direct connection to SPI interfaces on other boards, extending the utility of the programmer beyond the ZIF socket.

Maintenance

To ensure the longevity and proper functioning of your CH341B programmer, follow these maintenance guidelines:

• Storage: Store the programmer in a dry, dust-free environment when not in use. Avoid extreme temperatures.
• Cleaning: Gently clean the device with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure the ZIF socket and pin headers are free from debris.
• Handling: Handle the programmer with care. Avoid dropping it or subjecting it to physical shock. When inserting or removing chips, use appropriate tools and ensure the ZIF socket lever is fully open/closed.
• USB Port: Always insert and remove the USB connector carefully to prevent damage to the port on the programmer or your computer.

Troubleshooting

If you encounter issues while using the CH341B programmer, consider the following common troubleshooting steps:

• Programmer Not Detected:
  • Ensure drivers are correctly installed. Check Device Manager (Windows) for any unknown devices or driver errors.
  • Try a different USB port on your computer.
  • Test with a different USB cable if applicable (though this unit has an integrated USB-A connector).
  • Restart your computer.
• Chip Not Recognized/Detected:
  • Verify the chip is inserted correctly into the ZIF socket or adapter board, paying close attention to pin 1 orientation.
  • Ensure the ZIF socket lever is fully closed, securing the chip.
  • Confirm the chip type (24 or 25 series) is supported by the programmer and selected correctly in the software.
  • Check for bent or damaged pins on the chip or in the socket.
  • Ensure the chip is receiving proper power (check status indicators).
• Programming Errors:
  • Ensure the chip is erased before attempting to write new data.
  • Verify the integrity of the firmware file you are trying to write.
  • Check for stable power supply to the programmer and the target chip.
  • Some chips may require specific voltage settings; consult the chip's datasheet and programmer software options.
• Software Issues:
  • Ensure you are using the latest version of the programming software.
  • Run the software as an administrator (Windows) if encountering permission issues.

Specifications

Warranty and Support

For information regarding product warranty, returns, or technical support, please refer to the purchase documentation or contact the seller directly. HUABAN may also provide support resources on their official website, including updated drivers and programming software.

It is recommended to regularly check the manufacturer's website for the latest software versions and driver updates to ensure optimal performance and compatibility with new chip types or operating system versions.