| DM-380 Interface | |||||||
| STM32F Device in DFU Mode | |||||||
| Connector | Function USB | Function Acc | Colour | Kenwood Pin | USB Pin | MPU Pin | MPU Function |
| 2.5mm Sleeve | GND | GND | BLA | 6 | 4 | - | - |
| 2.5mm Ring | D- | - | WHI | 6 | 2 | 32 | PA11 |
| 2.5mm Tip | - | SPK | - | 1 | - | - | - |
| 3.5m Sleeve | - | PTT | - | 4 | - | - | - |
| 3.5mm ring | - | MIC | - | 2 | - | - | - |
| 3.5mm Tip | D+ | - | GRN | N.C. | 3 | 33 | PA12 |
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