Flash and Authorize PHY6222

Firmware flashing

Flash firmware to PHY6222 through UART using the chip vendor’s tool.

Breakdown of PHY6222 firmware:

• simpleBlePeripheral_phy6222.hexf: the full firmware, used for production.
• simpleBlePeripheral_phy6222.hex16.bin: the firmware update, used for OTA update.

Tools

• PHY6222 development board
• USB to TTL converter
• PhyPlusKit software.

Firmware flashing

Pull pin 8 (TM) high and power on the device to make the UART receive commands.
UART configuration: 115200 baud rate, 8 bit, 1 stop bit, none parity, and no flow control.

Procedure

1. Prepare the software and tool and connect the hardware. The default UART for flashing is P10-RX and P09-TX.

2. Open PhyPlusKit.exe, check UART Setting, configure parameters (115200 baud rate, 8 bit, 1 stop bit, none parity, and no flow control), and click Connect.

3. Set TM to VDD high level, press reset on the development board, and wait for message UART RX : cmd>>: on the screen.

   

4. Double-click the input box under the HEX option to import the .hexf firmware file.

   

5. The program automatically parses the .hexf file and displays the last modification time.

   

6. Before flashing, click Erase.

   

7. Click Write to automatically flash the .hexf file.

   

8. Set TM to GND, exit the flashing mode, press the reset button on the development board, and check the log output.

   

#define TUYA_BLE_LOG_ENABLE                  1
#define TUYA_APP_LOG_ENABLE                 1

Firmware authorization

Get the license

For more information, see Authorize Bluetooth LE Series Modules.

Flashing and authorization

1. Connect the chip to a USB to TTL converter (RX-P26, TX-P25).

2. Open Cloud Module Burning Authorization Platform, and enable Only Auth.

   

   The code specifies the baud rate. Ensure that you set the software according to the code.

   uint32_t ty_uart2_init(void)
   {
       uart_Cfg_t cfg = {
           .tx_pin = P25,
           .rx_pin = P26,
           .rts_pin = GPIO_DUMMY,
           .cts_pin = GPIO_DUMMY,
           .baudrate = 115200,
           .use_fifo = TRUE,
           .hw_fwctrl = FALSE,
           .use_tx_buf = TRUE,
           .parity     = FALSE,
           .evt_handler = phy_uart_evt_hdl,
       };
   
       hal_uart_deinit(UART1);
       hal_uart_init(cfg, UART1);
       hal_uart_set_tx_buf(UART1, s_uart_tx_buf, TY_UART_TX_BUF_SIZE);
   
       return 0;
   }