Other Parts Discussed in Thread: UNIFLASH
Tool/software:
Hello
I made a custom board with IWR6843ARQGALP and I do firmware bin file flashing test.
use flashing tool uniflash 9.1.0
before firmware flash, I did check this list.
1. VBGAP output voltage is 0.9V.
2. SOP0:3.3V SOP1:0V SOP2:1.7V (I don't know why SOP2 is 1.7V, but VIH threshold voltage is over 1.57V. so I think it is ok.)
3. power reset after list 2 start.
4. connecting RS232_TX and RS232_RX to UART Serial module.
5. start firmware flashing with uniflash.
but flash is failed.
I think all setting is perfect but failed.
error log
[2025. 4. 18. 오전 10:25:08] [INFO] Cortex_R4_0: Initialization complete.
[2025. 4. 18. 오전 10:25:08] [INFO] Cortex_R4_0: Flashing process starting...
[2025. 4. 18. 오전 10:25:08] [INFO] Cortex_R4_0: Connecting to COM Port COM4...
[2025. 4. 18. 오전 10:25:08] [INFO] Cortex_R4_0: Reset connection to device
[2025. 4. 18. 오전 10:25:08] [INFO] Cortex_R4_0: Set break signal
[2025. 4. 18. 오전 10:25:22] [ERROR] Cortex_R4_0: XXXX Received unexpected data!!!XXXX
[2025. 4. 18. 오전 10:25:22] [ERROR] Cortex_R4_0: Not able to connect to serial port. Recheck COM port selected and/or permissions.
[2025. 4. 18. 오전 10:25:22] [INFO] Cortex_R4_0: Flashing instance clean-up initiated...
[2025. 4. 18. 오전 10:25:22] [INFO] Cortex_R4_0: Instance deinitialized!
I did check RS232_TX node with oscilloscope.
I finded break signal. so I think tx line is okay.
but I can't find response rx signal. rx signal is ever no response.
I'm sharing my custom board schematic.
I did connect J1 and Uart Serial module. (CAMERA_UART_RX - UART_TX / CAMERA_UART_TX - UART_RX)
and CAMERA_MUX_CTRL set L Signal. so AR_RS232 TX and RX Pin connect CAMERA_UART TX and RX.
I think SOP issue but I can't find cause.
Can you Help me and give advice?
