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Add UART9/10 support.

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* UART9 was supported as LPUART on some H7s.
* Newer 100-pin H7 CPUs support UART9 and USART10.
* 100+ pin devices support higher numbered UARTS than UART10.

Use USE_LPUART instead of hacking into UART9 for clarity.

* LPUARTS are different from other types of UARTS.
* They need different ID ranges.
* They have and different capabilities.
* Renumber LPUART1 to 40.

0-19 reserved for UART1-20
40-49 onwards for LPUART instances.

It makes sense to treat them as a different class of UART.  Just like we
do for softserial, vcp, etc.
This commit is contained in:
Dominic Clifton 2021-04-21 21:38:16 +02:00
parent 025ee87a7a
commit 263c5fa373
15 changed files with 201 additions and 26 deletions
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10
docs/Serial.md
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@ -85,10 +85,18 @@ Note: for Identifier see serialPortIdentifier_e in the source; for Function bitm
| SERIAL_PORT_USART6 | 5 |
| SERIAL_PORT_USART7 | 6 |
| SERIAL_PORT_USART8 | 7 |
| SERIAL_PORT_LPUART1 | 8 |
| SERIAL_PORT_UART9 | 8 |
| SERIAL_PORT_USART10 | 9 |
| SERIAL_PORT_USB_VCP | 20 |
| SERIAL_PORT_SOFTSERIAL1 | 30 |
| SERIAL_PORT_SOFTSERIAL2 | 31 |
| SERIAL_PORT_LPUART1 | 40 |
ID's 0-19 reserved for UARTS 1-20
ID's 20-29 reserved for USB 1-10
ID's 30-39 reserved for SoftSerial 1-10
ID's 40-49 reserved for LPUART 1-10
Other devices can be added starting from id 50.
### 2. Serial Port Function