UNO Q: Serial as Monitor alias?

[KurtE]

Release 0.4.0 - Serial as Monitor alias support · arduino-libraries/Arduino_RouterBridge

@ptillisch and all - Not sure the best place to ask this?

I have been noticing several commits in a few different places like Arduino_RouterBridge
with titles, like the release title for 0.4.0?

Looks like RouterBridge and the like won't be packaged with it soon?
libraries: remove Arduino_RouterBridge and Arduino_RPClite by pennam · Pull Request #396 · arduino/ArduinoCore-zephyr

There are also some draft ones like:
examples: revamp & improvements by eigen-value · Pull Request #58 · arduino-libraries/Arduino_RouterBridge

So my questions are:

1. Has anything changed yet with Serial versus Monitor? or only the ground work has been been put in and more to come?

From the examples: like in the draft:
Arduino_RouterBridge/examples/test_serial_alias_monitor/test_serial_alias_monitor.ino at examples_revamp · arduino-libraries/Arduino_RouterBridge
Shows we still (or will still) need to still include the header file.

2. What happens to existing sketches/Apps that use Serial to talk to pins 0,1? I assume
   we then use Serial1? I assume all of the existing code that currently uses Serial1 to talk to the other processor changes to Serial2?

Thanks
Kurt

[GolamMostafa]

1. In the datasheet of STM32U585 MCU, I have found the following names among many other serial port related names:

(1) USART1
(2) USART2
(3) USART3

(4) UART4
(5) UART5

(6) LPUART1
(7) LPUART2

2. For router bridge, they have used LPUART1 (Fig-2).

3. USART1 is connected with DPin-0 and DPin-1 of the header of UNO Q. To conform with UNO R3 style, the corresponding object name is: Serial.

Figure-1:

4.

@KurtE

Has anything changed yet with Serial versus Monitor?

(1) Serial link is the traditional UNO R3 style communication link through this path:
USART1 ---> Heard Pins (0, 1) ----> TTL <----> USB ----> USB-A -----> Virtual COM Port ----> Serial Monitor.

(2) Monitor link is the new communication link through this path:
MCU ---> Router Bridge ----> MPU ----> USB-C ---> USB-A ---> virtual COM Port ----> Console Pythone/Console Serial Monitor

Figure-2:

[KurtE]

Thanks,

I have all of the pins broken out in my Excel document:

Arduino Pin	usage	Port	AF0	AF1	AF2	AF3	AF4	AF5	AF6	AF7	AF8	AF9	AF10	AF11	AF12	AF13	AF14	AF15
0	D0	PB7	-	LPTIM1_IN2	TIM4_CH2	TIM8_BKIN	I2C1_SDA	I2C4_SDA	MDF1_CKI5	USART1_RX	UART4_CTS	TSC_G2_IO4	DCMI_VSYNC/ PSSI_RDY	-	FMC_NL	-	TIM17_CH1N	EVENTOUT
1	D1	PB6	-	LPTIM1_ETR	TIM4_CH1	TIM8_BKIN2	I2C1_SCL	I2C4_SCL	MDF1_SDI5	USART1_TX	-	TSC_G2_IO3	DCMI_D5/PSSI_D5	-	-	SAI1_FS_B	TIM16_CH1N	EVENTOUT
2	D2	PB3	JTDO/ TRACESWO	TIM2_CH2	LPTIM1_CH1	ADF1_CCK0	I2C1_SDA	SPI1_SCK	SPI3_SCK	USART1_ RTS/USART1_ DE	-	-	CRS_SYNC	LPGPIO1_P11	SDMMC2_D2	SAI1_SCK_B	-	EVENTOUT
3	D3	PB0	-	TIM1_CH2N	TIM3_CH3	TIM8_CH2N	LPTIM3_CH1	SPI1_NSS	-	USART3_CK	-	-	OCTOSPIM_P1_IO1	LPGPIO1_P9	COMP1_OUT	AUDIOCLK	-	EVENTOUT
4	D4	PA12	-	TIM1_ETR	-	-	-	SPI1_MOSI	OCTOSPIM_ P2_NCS	USART1_ RTS/USART1_ DE	-	FDCAN1_TX	-	-	-	-	-	EVENTOUT
5	D5	PA11	-	TIM1_CH4	TIM1_BKIN2	-	-	SPI1_MISO	-	USART1_CTS	-	FDCAN1_RX	-	-	-	-	-	EVENTOUT
6	D6	PB1	-	TIM1_CH3N	TIM3_CH4	TIM8_CH3N	LPTIM3_CH2	-	MDF1_SDI0	USART3_ RTS/USART3_ DE	LPUART1_ RTS/LPUART1_ DE	-	OCTOSPIM_P1_IO0	LPGPIO1_P3	-	-	LPTIM2_IN1	EVENTOUT
7	D7	PB2	-	LPTIM1_CH1	-	TIM8_CH4N	I2C3_SMBA	SPI1_RDY	MDF1_CKI0	-	-	-	OCTOSPIM_ P1_DQS	UCPD1_ FRSTX1	-	-	-	EVENTOUT
8	D8	PB4	NJTRST	LPTIM1_CH2	TIM3_CH1	ADF1_SDI0	I2C3_SDA	SPI1_MISO	SPI3_MISO	USART1_CTS	UART5_RTS/ UART5_DE	TSC_G2_IO1	DCMI_D12/ PSSI_D12	LPGPIO1_P12	SDMMC2_D3	SAI1_MCLK_B	TIM17_BKIN	EVENTOUT
9	D9	PB8	-	-	TIM4_CH3	SAI1_CK1	I2C1_SCL	MDF1_CCK0	SPI3_RDY	-	SDMMC1_CKIN	FDCAN1_RX	DCMI_D6/PSSI_D6	SDMMC2_D4	SDMMC1_D4	SAI1_MCLK_A	TIM16_CH1	EVENTOUT
10	D10	PB9	-	IR_OUT	TIM4_CH4	SAI1_D2	I2C1_SDA	SPI2_NSS	-	-	SDMMC1_CDIR	FDCAN1_TX	DCMI_D7/PSSI_D7	SDMMC2_D5	SDMMC1_D5	SAI1_FS_A	TIM17_CH1	EVENTOUT
11	D11	PB15	RTC_REFIN	TIM1_CH3N	LPTIM2_IN2	TIM8_CH3N	-	SPI2_MOSI	MDF1_CKI2	-	-	-	-	FMC_NBL1	SDMMC2_D1	SAI2_SD_A	TIM15_CH2	EVENTOUT
12	D12	PB14	-	TIM1_CH2N	LPTIM3_ETR	TIM8_CH2N	I2C2_SDA	SPI2_MISO	MDF1_SDI2	USART3_ RTS/USART3_ DE	-	TSC_G1_IO3	-	-	SDMMC2_D0	SAI2_MCLK_A	TIM15_CH1	EVENTOUT
13	D13	PB13	-	TIM1_CH1N	LPTIM3_IN1	-	I2C2_SCL	SPI2_SCK	MDF1_CKI1	USART3_CTS	LPUART1_CTS	TSC_G1_IO2	-	-	-	SAI2_SCK_A	TIM15_CH1N	EVENTOUT
14	A0	PA4	-	-	-	OCTOSPIM_P1 _NCS	-	SPI1_NSS	SPI3_NSS	USART2_CK	-	-	DCMI_HSYNC/ PSSI_DE	-	-	SAI1_FS_B	LPTIM2_CH1	EVENTOUT
15	A1	PA5	CSLEEP	TIM2_CH1	TIM2_ETR	TIM8_CH1N	PSSI_D14	SPI1_SCK	-	USART3_RX	-	-	-	-	-	-	LPTIM2_ETR	EVENTOUT
16	A2	PA6	CDSTOP	TIM1_BKIN	TIM3_CH1	TIM8_BKIN	DCMI_PIXCL K/PSSI_ PDCK	SPI1_MISO	-	USART3_CTS	LPUART1_CTS	-	OCTOSPIM_P1_IO3	LPGPIO1_P2	-	-	TIM16_CH1	EVENTOUT
17	A3	PA7	SRDSTOP	TIM1_CH1N	TIM3_CH2	TIM8_CH1N	I2C3_SCL	SPI1_MOSI	-	USART3_TX	-	-	OCTOSPIM_P1_IO2	-	-	LPTIM2_CH2	TIM17_CH1	EVENTOUT
18	A4	PC1	TRACED0	LPTIM1_CH1	-	SPI2_MOSI	I2C3_SDA	-	MDF1_CKI4	-	LPUART1_TX	-	OCTOSPIM_P1_IO4	-	SDMMC2_CK	SAI1_SD_A	-	EVENTOUT
19	A5	PC0	-	LPTIM1_IN1	-	OCTOSPIM_ P1_IO7	I2C3_SCL	SPI2_RDY	MDF1_SDI4	-	LPUART1_RX	-	-	-	SDMMC1_D5	SAI2_FS_A	LPTIM2_IN1	EVENTOUT
20	D20/SDA	PB11	-	TIM2_CH4	-	I2C4_SDA	I2C2_SDA	SPI2_RDY	-	USART3_RX	LPUART1_TX	-	OCTOSPIM_ P1_NCS	-	COMP2_OUT	-	-	EVENTOUT
21	D21/SCL	PB10	-	TIM2_CH3	LPTIM3_CH1	I2C4_SCL	I2C2_SCL	SPI2_SCK	-	USART3_TX	LPUART1_RX	TSC_SYNC	OCTOSPIM_P1_CLK	LPGPIO1_P4	COMP1_OUT	SAI1_SCK_A	-	EVENTOUT
22	D22/JSPI	PC2	-	LPTIM1_IN2	-	-	-	SPI2_MISO	MDF1_CCK1	-	-	-	OCTOSPIM_P1_IO5	LPGPIO1_P5	-	-	-	EVENTOUT
23	D23/JSPI	PC3	-	LPTIM1_ETR	LPTIM3_CH1	SAI1_D1	-	SPI2_MOSI	-	-	-	-	OCTOSPIM_P1_IO6	-	-	SAI1_SD_A	LPTIM2_ETR	EVENTOUT
24	D24/JSPI	PD1	-	-	-	-	-	SPI2_SCK	-	-	-	FDCAN1_TX	-	-	FMC_D3/FMC_ AD3	-	-	EVENTOUT
25	JMISC	PC6	CSLEEP	-	TIM3_CH1	TIM8_CH1	-	-	MDF1_CKI3	-	SDMMC1_ D0DIR	TSC_G4_IO1	DCMI_D0/PSSI_D0	SDMMC2_D6	SDMMC1_D6	SAI2_MCLK_A	-	EVENTOUT
26	JMISC	PD2	TRACED2	-	TIM3_ETR	-	-	-	-	USART3_ RTS/USART3_ DE	UART5_RX	TSC_SYNC	DCMI_D11/ PSSI_D11	LPGPIO1_P7	SDMMC1_CMD	LPTIM4_ETR	-	EVENTOUT
27	JMISC	PC7	CDSTOP	-	TIM3_CH2	TIM8_CH2	-	-	MDF1_SDI3	-	SDMMC1_ D123DIR	TSC_G4_IO2	DCMI_D1/PSSI_D1	SDMMC2_D7	SDMMC1_D7	SAI2_MCLK_B	LPTIM2_CH2	EVENTOUT
28	JMISC	PE2	TRACECLK	-	TIM3_ETR	SAI1_CK1	-	-	-	-	-	TSC_G7_IO1	-	LPGPIO1_P14	FMC_A23	SAI1_MCLK_A	-	EVENTOUT
29	JMISC	PC8	SRDSTOP	-	TIM3_CH3	TIM8_CH3	-	-	-	-	-	TSC_G4_IO3	DCMI_D2/PSSI_D2	-	SDMMC1_D0	-	LPTIM3_CH1	EVENTOUT
30	JMISC	PE3	TRACED0	-	TIM3_CH1	OCTOSPIM_ P1_DQS	-	-	-	-	-	TSC_G7_IO2	-	LPGPIO1_P15	FMC_A19	SAI1_SD_B	-	EVENTOUT
31	JMISC	PC9	TRACED0	TIM8_BKIN2	TIM3_CH4	TIM8_CH4	DCMI_D3/ PSSI_D3	-	-	-	-	TSC_G4_IO4	OTG_FS_NOE	-	SDMMC1_D1	-	LPTIM3_CH2	EVENTOUT
32	JMISC	PE5	TRACED2	-	TIM3_CH3	SAI1_CK2	-	-	MDF1_CKI3	-	-	TSC_G7_IO4	DCMI_D6/PSSI_D6	-	FMC_A21	SAI1_SCK_A	-	EVENTOUT
33	JMISC	PE4	TRACED1	-	TIM3_CH2	SAI1_D2	-	-	MDF1_SDI3	-	-	TSC_G7_IO3	DCMI_D4/PSSI_D4	-	FMC_A20	SAI1_FS_A	-	EVENTOUT
34	JMISC	PE6	TRACED3	-	TIM3_CH4	SAI1_D1	-	-	-	-	-	-	DCMI_D7/PSSI_D7	-	FMC_A22	SAI1_SD_A	-	EVENTOUT
35	JMISC	PI4	-	-	-	TIM8_BKIN	-	SPI2_RDY	-	-	-	-	DCMI_D5/PSSI_D5	-	-	-	-	EVENTOUT
36	JMISC	PE7	-	TIM1_ETR	-	-	-	-	MDF1_SDI2	-	-	-	-	-	FMC_D4/FMC_ AD4	SAI1_SD_B	-	EVENTOUT
37	JMISC	PI6	-	-	-	TIM8_CH2	-	OCTOSPIM_ P2_CLK	-	-	-	-	DCMI_D6/PSSI_D6	-	-	-	-	EVENTOUT
38	JMISC	PE8	-	TIM1_CH1N	-	-	-	-	MDF1_CKI2	-	-	-	-	-	FMC_D5/FMC_ AD5	SAI1_SCK_B	-	EVENTOUT
39	JMISC	PI7	-	-	-	TIM8_CH3	-	OCTOSPIM_ P2_NCLK	-	-	-	-	DCMI_D7/PSSI_D7	-	-	-	-	EVENTOUT
40	JMISC	PF14	-	-	-	-	I2C4_SCL	-	-	-	-	TSC_G8_IO1	-	-	FMC_A8	-	-	EVENTOUT
41	JMISC	PD9	-	-	LPTIM2_IN2	-	-	-	-	USART3_RX	-	-	DCMI_PIXCLK/ PSSI_PDCK	-	FMC_D14/FMC _AD14	SAI2_MCLK_A	LPTIM3_IN1	EVENTOUT
42	JMISC	PF15	-	-	-	-	I2C4_SDA	-	-	-	-	TSC_G8_IO2	-	-	FMC_A9	-	-	EVENTOUT
43	JMISC	PI5	-	-	-	TIM8_CH1	-	OCTOSPIM_ P2_NCS	-	-	-	-	DCMI_VSYNC/ PSSI_RDY	-	-	-	-	EVENTOUT
44	JMISC	PA3	-	TIM2_CH4	TIM5_CH4	SAI1_CK1	-	-	-	USART2_RX	LPUART1_RX	-	OCTOSPIM_P1_CLK	LPGPIO1_P1	-	SAI1_MCLK_A	TIM15_CH2	EVENTOUT
45	JMISC	PD8	-	-	-	-	-	-	-	USART3_TX	-	-	DCMI_HSYNC/ PSSI_DE	-	FMC_D13/FMC _AD13	-	-	EVENTOUT
46	JMISC	PA0	-	TIM2_CH1	TIM5_CH1	TIM8_ETR	-	-	SPI3_RDY	USART2_CTS	UART4_TX	-	OCTOSPIM_ P2_NCS	-	SDMMC2_CMD	AUDIOCLK	TIM2_ETR	EVENTOUT
47	JMISC	PA8	MCO	TIM1_CH1	-	SAI1_CK2	-	SPI1_RDY	-	USART1_CK	-	-	OTG_FS_SOF	-	TRACECLK	SAI1_SCK_A	LPTIM2_CH1	EVENTOUT
48	JMISC	PA1	LPTIM1_CH2	TIM2_CH2	TIM5_CH2	-	I2C1_SMBA	SPI1_SCK	-	USART2_ RTS/USART2_ DE	UART4_RX	-	OCTOSPIM_ P1_DQS	LPGPIO1_P0	-	-	TIM15_CH1N	EVENTOUT
49	JMISC	PA10	CRS_SYNC	TIM1_CH3	LPTIM2_IN2	SAI1_D1	-	DCMI_D1/PSSI_D1	-	USART1_RX	-	-	OTG_FS_ID	-	-	SAI1_SD_A	TIM17_BKIN	EVENTOUT
50	LED3_R	PH10	-	-	TIM5_CH1	-	-	OCTOSPIM_P2_IO5	-	-	-	-	DCMI_D1/PSSI_D1	-	-	-	-	EVENTOUT
51	LED3_G	PH11	-	-	TIM5_CH2	-	-	OCTOSPIM_P2_IO6	-	-	-	-	DCMI_D2/PSSI_D2	-	-	-	-	EVENTOUT
52	LED3_B	PH12	-	-	TIM5_CH3	TIM8_CH4N	-	OCTOSPIM_P2_IO7	-	-	-	-	DCMI_D3/PSSI_D3	-	-	-	-	EVENTOUT
53	LED4_R	PH13	-	-	-	TIM8_CH1N	-	-	-	-	-	FDCAN1_TX	-	-	-	-	-	EVENTOUT
54	LED4_G	PH14	-	-	-	TIM8_CH2N	-	-	-	-	-	FDCAN1_RX	DCMI_D4/PSSI_D4	-	-	-	-	EVENTOUT
55	LED4_B	PH15	-	-	-	TIM8_CH3N	-	OCTOSPIM_P2_IO6	-	-	-	-	DCMI_D11/ PSSI_D11	-	-	-	-	EVENTOUT
56	LED matrix	PF0	-	-	-	-	I2C2_SDA	OCTOSPIM_P2_IO0	-	-	-	-	-	-	FMC_A0	-	-	EVENTOUT
57	LED matrix	PF1	-	-	-	-	I2C2_SCL	OCTOSPIM_P2_IO1	-	-	-	-	-	-	FMC_A1	-	-	EVENTOUT
58	LED matrix	PF2	-	-	LPTIM3_CH2	-	I2C2_SMBA	OCTOSPIM_P2_IO2	-	-	-	-	-	-	FMC_A2	-	-	EVENTOUT
59	LED matrix	PF3	-	-	LPTIM3_IN1	-	-	OCTOSPIM_P2_IO3	-	-	-	-	-	-	FMC_A3	-	-	EVENTOUT
60	LED matrix	PF4	-	-	LPTIM3_ETR	-	-	OCTOSPIM_ P2_CLK	-	-	-	-	-	-	FMC_A4	-	-	EVENTOUT
61	LED matrix	PF5	-	-	LPTIM3_CH1	-	-	OCTOSPIM_ P2_NCLK	-	-	-	-	-	-	FMC_A5	-	-	EVENTOUT
62	LED matrix	PF6	-	TIM5_ETR	TIM5_CH1	-	DCMI_D12/P SSI_D12	OCTOSPIM_ P2_NCS	-	-	-	-	OCTOSPIM_P1_IO3	-	-	SAI1_SD_B	-	EVENTOUT
63	LED matrix	PF7	-	-	TIM5_CH2	-	-	-	-	-	-	FDCAN1_RX	OCTOSPIM_P1_IO2	-	-	SAI1_MCLK_B	-	EVENTOUT
64	LED matrix	PF8	-	-	TIM5_CH3	-	PSSI_D14	-	-	-	-	FDCAN1_TX	OCTOSPIM_P1_IO0	-	-	SAI1_SCK_B	-	EVENTOUT
65	LED matrix	PF9	-	-	TIM5_CH4	-	PSSI_D15	-	-	-	-	-	OCTOSPIM_P1_IO1	-	-	SAI1_FS_B	TIM15_CH1	EVENTOUT
66	LED matrix	PF10	-	-	-	OCTOSPIM_ P1_CLK	PSSI_D15	-	MDF1_CCK1	-	-	-	DCMI_D11/ PSSI_D11	-	-	SAI1_D3	TIM15_CH2	EVENTOUT
67	Internal SPI RDY	PG13	-	-	-	-	I2C1_SDA	-	SPI3_RDY	USART1_CK	-	-	-	-	FMC_A24	-	-	EVENTOUT
68	Analog Switch VREF	PA2	-	TIM2_CH3	TIM5_CH3	-	-	SPI1_RDY	-	USART2_TX	LPUART1_TX	-	OCTOSPIM_ P1_NCS	UCPD1_ FRSTX1	-	-	TIM15_CH1	EVENTOUT
69	BOOT0	PH3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PA13	JTMS/SWDIO	IR_OUT	-	-	-	-	-	-	-	-	OTG_FS_NOE	-	-	SAI1_SD_B	-	EVENTOUT
		PA14	JTCK/SWCLK	LPTIM1_CH1	-	-	I2C1_SMBA	I2C4_SMBA	-	-	-	-	OTG_FS_SOF	-	-	SAI1_FS_B	-	EVENTOUT
		PA15	JTDI	TIM2_CH1	TIM2_ETR	USART2_RX	-	SPI1_NSS	SPI3_NSS	USART3_ RTS/USART3_ DE	UART4_RTS/ UART4_DE	-	-	-	-	SAI2_FS_B	-	EVENTOUT
		PA9	-	TIM1_CH2	-	SPI2_SCK	-	DCMI_D0/PSSI_D0	-	USART1_TX	-	-	-	-	-	SAI1_FS_A	TIM15_BKIN	EVENTOUT
		PB12	-	TIM1_BKIN	-	-	I2C2_SMBA	SPI2_NSS	MDF1_SDI1	USART3_CK	LPUART1_RTS/ LPUART1_DE	TSC_G1_IO1	OCTOSPIM_ P1_NCLK	-	-	SAI2_FS_A	TIM15_BKIN	EVENTOUT
		PB5	-	LPTIM1_IN1	TIM3_CH2	OCTOSPIM_ P1_NCLK	I2C1_SMBA	SPI1_MOSI	SPI3_MOSI	USART1_CK	UART5_CTS	TSC_G2_IO2	DCMI_D10/ PSSI_D10	-	COMP2_OUT	SAI1_SD_B	TIM16_BKIN	EVENTOUT
		PC10	TRACED1	-	LPTIM3_ETR	ADF1_CCK1	-	-	SPI3_SCK	USART3_TX	UART4_TX	TSC_G3_IO2	DCMI_D8/PSSI_D8	LPGPIO1_P8	SDMMC1_D2	SAI2_SCK_B	-	EVENTOUT
		PC11	-	-	LPTIM3_IN1	ADF1_SDI0	DCMI_D2/ PSSI_D2	OCTOSPIM_ P1_NCS	SPI3_MISO	USART3_RX	UART4_RX	TSC_G3_IO3	DCMI_D4/PSSI_D4	UCPD1_ FRSTX2	SDMMC1_D3	SAI2_MCLK_B	-	EVENTOUT
		PC12	TRACED3	-	-	-	-	-	SPI3_MOSI	USART3_CK	UART5_TX	TSC_G3_IO4	DCMI_D9/PSSI_D9	LPGPIO1_P10	SDMMC1_CK	SAI2_SD_B	-	EVENTOUT
		PC13	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PC14	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PC15	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PC4	-	-	-	-	-	-	-	USART3_TX	-	-	OCTOSPIM_P1_IO7	-	-	-	-	EVENTOUT
		PC5	-	TIM1_CH4N	-	SAI1_D3	PSSI_D15	-	-	USART3_RX	-	-	-	-	-	-	-	EVENTOUT
		PD0	-	-	-	TIM8_CH4N	-	SPI2_NSS	-	-	-	FDCAN1_RX	-	-	FMC_D2/FMC_ AD2	-	-	EVENTOUT
		PD10	-	-	LPTIM2_CH2	-	-	-	-	USART3_CK	-	TSC_G6_IO1	-	-	FMC_D15/FMC _AD15	SAI2_SCK_A	LPTIM3_ETR	EVENTOUT
		PD11	-	-	-	-	I2C4_SMBA	-	-	USART3_CTS	-	TSC_G6_IO2	-	-	FMC_CLE/ FMC_A16	SAI2_SD_A	LPTIM2_ETR	EVENTOUT
		PD12	-	-	TIM4_CH1	-	I2C4_SCL	-	-	USART3_ RTS/USART3_ DE	-	TSC_G6_IO3	-	-	FMC_ALE/ FMC_A17	SAI2_FS_A	LPTIM2_IN1	EVENTOUT
		PD13	-	-	TIM4_CH2	-	I2C4_SDA	-	-	-	-	TSC_G6_IO4	-	LPGPIO1_P6	FMC_A18	LPTIM4_IN1	LPTIM2_CH1	EVENTOUT
		PD14	-	-	TIM4_CH3	-	-	-	-	-	-	-	-	-	FMC_D0/FMC_ AD0	-	LPTIM3_CH1	EVENTOUT
		PD15	-	-	TIM4_CH4	-	-	-	-	-	-	-	-	-	FMC_D1/FMC_ AD1	-	LPTIM3_CH2	EVENTOUT
		PD3	-	-	-	SPI2_SCK	DCMI_D5/ PSSI_D5	SPI2_MISO	MDF1_SDI0	USART2_CTS	-	-	OCTOSPIM_ P2_NCS	-	FMC_CLK	-	-	EVENTOUT
		PD4	-	-	-	-	-	SPI2_MOSI	MDF1_CKI0	USART2_ RTS/USART2_ DE	-	-	OCTOSPIM_P1_IO4	-	FMC_NOE	-	-	EVENTOUT
		PD5	-	-	-	-	-	SPI2_RDY	-	USART2_TX	-	-	OCTOSPIM_P1_IO5	-	FMC_NWE	-	-	EVENTOUT
		PD6	-	-	-	SAI1_D1	DCMI_D10/ PSSI_D10	SPI3_MOSI	MDF1_SDI1	USART2_RX	-	-	OCTOSPIM_P1_IO6	SDMMC2_CK	FMC_NWAIT	SAI1_SD_A	-	EVENTOUT
		PD7	-	-	-	-	-	-	MDF1_CKI1	USART2_CK	-	-	OCTOSPIM_P1_IO7	SDMMC2_CMD	FMC_NCE/ FMC_NE1	LPTIM4_OUT	-	EVENTOUT
		PE0	-	-	TIM4_ETR	-	-	-	-	-	-	-	DCMI_D2/PSSI_D2	LPGPIO1_P13	FMC_NBL0	-	TIM16_CH1	EVENTOUT
		PE1	-	-	-	-	-	-	-	-	-	-	DCMI_D3/PSSI_D3	-	FMC_NBL1	-	TIM17_CH1	EVENTOUT
		PE10	-	TIM1_CH2N	-	ADF1_SDI0	-	-	MDF1_SDI4	-	-	TSC_G5_IO1	OCTOSPIM_P1_CLK	-	FMC_D7/FMC_ AD7	SAI1_MCLK_B	-	EVENTOUT
		PE11	-	TIM1_CH2	-	-	-	SPI1_RDY	MDF1_CKI4	-	-	TSC_G5_IO2	OCTOSPIM_ P1_NCS	-	FMC_D8/FMC_ AD8	-	-	EVENTOUT
		PE12	-	TIM1_CH3N	-	-	-	SPI1_NSS	MDF1_SDI5	-	-	TSC_G5_IO3	OCTOSPIM_P1_IO0	-	FMC_D9/FMC_ AD9	-	-	EVENTOUT
		PE13	-	TIM1_CH3	-	-	-	SPI1_SCK	MDF1_CKI5	-	-	TSC_G5_IO4	OCTOSPIM_P1_IO1	-	FMC_D10/FMC _AD10	-	-	EVENTOUT
		PE14	-	TIM1_CH4	TIM1_BKIN2	-	-	SPI1_MISO	-	-	-	-	OCTOSPIM_P1_IO2	-	FMC_D11/FMC _AD11	-	-	EVENTOUT
		PE15	-	TIM1_BKIN	-	TIM1_CH4N	-	SPI1_MOSI	-	-	-	-	OCTOSPIM_P1_IO3	-	FMC_D12/FMC _AD12	-	-	EVENTOUT
		PE9	-	TIM1_CH1	-	ADF1_CCK0	-	-	MDF1_CCK0	-	-	-	OCTOSPIM_P1_NC LK	-	FMC_D6/FMC_ AD6	SAI1_FS_B	-	EVENTOUT
		PF11	-	-	-	OCTOSPIM_ P1_NCLK	-	-	-	-	-	-	DCMI_D12/ PSSI_D12	-	-	LPTIM4_IN1	-	EVENTOUT
		PF12	-	-	-	-	-	OCTOSPIM_ P2_DQS	-	-	-	-	-	-	FMC_A6	LPTIM4_ETR	-	EVENTOUT
		PF13	-	-	-	-	I2C4_SMBA	-	-	-	-	-	-	UCPD1_ FRSTX2	FMC_A7	LPTIM4_OUT	-	EVENTOUT
		PG0	-	-	-	-	-	OCTOSPIM_P2_IO4	-	-	-	TSC_G8_IO3	-	-	FMC_A10	-	-	EVENTOUT
		PG1	-	-	-	-	-	OCTOSPIM_P2_IO5	-	-	-	TSC_G8_IO4	-	-	FMC_A11	-	-	EVENTOUT
		PG10	-	LPTIM1_IN1	-	-	-	OCTOSPIM_P2_IO7	SPI3_MISO	USART1_RX	-	-	-	-	FMC_NE3	SAI2_FS_A	TIM15_CH1	EVENTOUT
		PG11	-	LPTIM1_IN2	-	OCTOSPIM_ P1_IO5	-	-	SPI3_MOSI	USART1_CTS	-	-	-	-	-	SAI2_MCLK_A	TIM15_CH2	EVENTOUT
		PG12	-	LPTIM1_ETR	-	-	-	OCTOSPIM_ P2_NCS	SPI3_NSS	USART1_ RTS/USART1_ DE	-	-	-	-	FMC_NE4	SAI2_SD_A	-	EVENTOUT
		PG14	-	LPTIM1_CH2	-	-	I2C1_SCL	-	-	-	-	-	-	-	FMC_A25	-	-	EVENTOUT
		PG15	-	LPTIM1_CH1	-	-	I2C1_SMBA	OCTOSPIM_ P2_DQS	-	-	-	-	DCMI_D13/ PSSI_D13	-	-	-	-	EVENTOUT
		PG2	-	-	-	-	-	SPI1_SCK	-	-	-	-	-	-	FMC_A12	SAI2_SCK_B	-	EVENTOUT
		PG3	-	-	-	-	-	SPI1_MISO	-	-	-	-	-	-	FMC_A13	SAI2_FS_B	-	EVENTOUT
		PG4	-	-	-	-	-	SPI1_MOSI	-	-	-	-	-	-	FMC_A14	SAI2_MCLK_B	-	EVENTOUT
		PG5	-	-	-	-	-	SPI1_NSS	-	-	LPUART1_CTS	-	-	-	FMC_A15	SAI2_SD_B	-	EVENTOUT
		PG6	-	-	-	OCTOSPIM_ P1_DQS	I2C3_SMBA	SPI1_RDY	-	-	LPUART1_RTS/ LPUART1_DE	-	-	UCPD1_ FRSTX1	-	-	-	EVENTOUT
		PG7	-	-	-	SAI1_CK1	I2C3_SCL	OCTOSPIM_ P2_DQS	MDF1_CCK0	-	LPUART1_TX	-	-	UCPD1_ FRSTX2	FMC_INT	SAI1_MCLK_A	-	EVENTOUT
		PG8	-	-	-	-	I2C3_SDA	-	-	-	LPUART1_RX	-	-	-	-	-	-	EVENTOUT
		PG9	-	-	-	-	-	OCTOSPIM_P2_IO6	SPI3_SCK	USART1_TX	-	-	-	-	FMC_NCE/ FMC_NE2	SAI2_SCK_A	TIM15_CH1N	EVENTOUT
		PH0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PH1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PH2	-	-	-	OCTOSPIM_ P1_IO4	-	-	-	-	-	-	-	-	-	-	-	EVENTOUT
		PH4	-	-	-	-	I2C2_SCL	OCTOSPIM_ P2_DQS	-	-	-	-	PSSI_D14	-	-	-	-	EVENTOUT
		PH5	-	-	-	-	I2C2_SDA	-	-	-	-	-	DCMI_PIXCLK/ PSSI_PDCK	-	-	-	-	EVENTOUT
		PH6	-	-	-	-	I2C2_SMBA	OCTOSPIM_ P2_CLK	-	-	-	-	DCMI_D8/PSSI_D8	-	-	-	-	EVENTOUT
		PH7	-	-	-	-	I2C3_SCL	OCTOSPIM_ P2_NCLK	-	-	-	-	DCMI_D9/PSSI_D9	-	-	-	-	EVENTOUT
		PH8	-	-	-	-	I2C3_SDA	OCTOSPIM_P2_IO3	-	-	-	-	DCMI_HSYNC/ PSSI_DE	-	-	-	-	EVENTOUT
		PH9	-	-	-	-	I2C3_SMBA	OCTOSPIM_P2_IO4	-	-	-	-	DCMI_D0/PSSI_D0	-	-	-	-	EVENTOUT
		PI0	-	-	TIM5_CH4	OCTOSPIM_ P1_IO5	-	SPI2_NSS	-	-	-	-	DCMI_D13/ PSSI_D13	-	-	-	-	EVENTOUT
		PI1	-	-	-	-	-	SPI2_SCK	OCTOSPIM_ P2_IO2	-	-	-	DCMI_D8/PSSI_D8	-	-	-	-	EVENTOUT
		PI2	-	-	-	TIM8_CH4	-	SPI2_MISO	OCTOSPIM_ P2_IO1	-	-	-	DCMI_D9/PSSI_D9	-	-	-	-	EVENTOUT
		PI3	-	-	-	TIM8_ETR	-	SPI2_MOSI	OCTOSPIM_ P2_IO0	-	-	-	DCMI_D10/ PSSI_D10	-	-	-	-	EVENTOUT
			CRS/LPTIM1/ SYS_AF	LPTIM1/ TIM1/2/5/8	LPTIM1/2/3/ TIM1/2/3/4/5	ADF1/I2C4/ OCTOSPIM_P1/ OTG_FS/SAI1/ SPI2/TIM1/8/ USART2	DCMI/ I2C1/2/3/4/ LPTIM3	DCMI/I2C4/MDF1/ OCTOSPIM_P1/2/ SPI1/2/3	I2C3/MDF1/ OCTOSPIM_P2/ SPI3	USART1/2/3	LPUART1/ SDMMC1/ UART4/5	CAN1/TSC	CRS/DCMI/ OCTOSPIM_P1/2/ OTG_FS	LPGPIO1/ SDMMC2/ UCPD1/FMC	COMP1/2/FMC/ SDMMC1/2	LPTIM2/4/ SAI1/2	LPTIM2/3/ TIM2/15/16/17	EVENTOUT

And as you mentioned, there are several USARTS and an LPUART.

With Zephyr setup, including current UNOQ, there is a mapping of logical Serial objects to
what the hardware device it is actually under the covers.

Currently in UNO Q they have in the device tree:

zephyr,user {
		serials = <&usart1>, <&lpuart1>;
		i2cs = <&i2c2>, <&i2c4>, <&i2c3>;
		spis = <&spi2>, <&spi3>;
};	

There is actually more stuff in the zephyr,user group like pin number mappings, but this is the short form,

Currently the code in core code zephyrSerial.cpp, reads in this list and, with Device Tree like
magic:

#if (DT_NODE_HAS_PROP(DT_PATH(zephyr_user), cdc_acm))
#define FIRST_UART_INDEX 1
#else
#define FIRST_UART_INDEX 0
#endif

#if DT_NODE_HAS_PROP(DT_PATH(zephyr_user), serials)
#if !(DT_NODE_HAS_PROP(DT_PATH(zephyr_user), cdc_acm) &&                                           \
	  (CONFIG_USB_CDC_ACM || CONFIG_USBD_CDC_ACM_CLASS))
// If CDC USB, use that object as Serial (and SerialUSB)
arduino::ZephyrSerial
	Serial(DEVICE_DT_GET(DT_PHANDLE_BY_IDX(DT_PATH(zephyr_user), serials, FIRST_UART_INDEX)));
#endif
#if (DT_PROP_LEN(DT_PATH(zephyr_user), serials) > 1)
#define ARDUINO_SERIAL_DEFINED_0 1

#define DECL_SERIAL_0(n, p, i)
#define DECL_SERIAL_N(n, p, i)                                                                     \
	arduino::ZephyrSerial Serial##i(DEVICE_DT_GET(DT_PHANDLE_BY_IDX(n, p, i)));
#define DECLARE_SERIAL_N(n, p, i)                                                                  \
	COND_CODE_1(ARDUINO_SERIAL_DEFINED_##i, (DECL_SERIAL_0(n, p, i)), (DECL_SERIAL_N(n, p, i)))

It assigns the first one in the list as: Serail or Serial1 and ones after that increment...

So current release:
Serial -> usart1
and Serial1 -> lpuart1

And these actual objects are defined in the Device Tree in the Zephyr project.
boards\arduino\unoq\arduino_uno_q-common.dtsi

&lpuart1_rx_pg8 {
	bias-pull-up;
};

&lpuart1 {
	pinctrl-0 = <&lpuart1_tx_pg7 &lpuart1_rx_pg8
		     &lpuart1_rts_pg6 &lpuart1_cts_pg5>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&usart1_rx_pb7 {
	bias-pull-up;
};

&usart1 {
	status = "okay";
	pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;
	pinctrl-names = "default";
	current-speed = <115200>;
};

Which shows whichs are used and the like.

But with the Q, the introduced: Monitor... as it really is not part of the device tree,
And I think the PRs and like I mention are in the process of Allowing Monitor to be
superseded by Serial. Or I am completely out to lunch

[KurtE]

Side comment: I keep wondering about maybe introducing other SerialX objects
Example pins 20, 21
Could be defined with: USART3

20	D20/SDA	PB11	-	TIM2_CH4	-	I2C4_SDA	I2C2_SDA	SPI2_RDY	-	USART3_RX
21	D21/SCL	PB10	-	TIM2_CH3	LPTIM3_CH1	I2C4_SCL	I2C2_SCL	SPI2_SCK	-	USART3_TX

As we now have the hacks PR to maybe it to work and still allow Wire object to work on
those pins as well.

But USART objects, that maybe rarely used might eat up a significant amount of free memory.

Not sure if it is possible with Zephyr here to only allocate the buffers if something in the sketch (or libraries) actually refer to that object. That is if that were to create Serial2 or Serial3, but no one in the sketch uses Serial3, how much resources will it eat up...

On a Teensy, we did the work that each Serial object was defined in it's own file and made sure nothing referred to them directly in the core. so if the object is not used, that file is
not included in the build... But don't know any way to do that with Zephyr. But maybe
at least not allocate buffers and the like, unless some one calls lets say begin on it and
have the object setup as deferred_init....

But that is a different subject

[GolamMostafa]

PB10 and PB11 pins of the MCU can carry a number of alternate signals from the internal modules like TIM2, I2C4, ..., UART3. Currently, these two pins are carrying 1.8V level signals from I2C2 module and after level shifting to 3.3V level they are connected with SDA/SCL pins of the header. These two signals are not named SDA/SCL, I think, to maintain conformity wit UNO R3.

@KurtE

Example pins 20, 21
Could be defined with: USART3

Yes, it would give us another Serial3 object if software would allow user to declare as:

Serial3.begin(20, 21, Bd);//RX3, TX3, Baud rate, default: 1-stop Bit, no-pariy

[GolamMostafa]

@KurtE

I have all of the pins broken out in my Excel document:

D2/D3 practically support UNO R3 styled external interrupts INT0 and INT1, but the originating MCU's interrupt pins are not seen in your table of post #3.

[ptillisch]

@KurtE

Looks like RouterBridge and the like won't be packaged with it soon?

That is correct. Starting from the next release of the "Arduino UNO Q Board" platform, it will be necessary to install these libraries when they are a dependency of your sketch.

@KurtE

Has anything changed yet with Serial versus Monitor? or only the ground work has been been put in and more to come?

As you noted, the necessary work to allow the use of the Serial object for communication between the sketch program and the host via the USB CDC serial port has been done in the Arduino_RouterBridge platform. However, work must also be done in the "Arduino UNO Q Board" platform before that is available to users. I believe the remaining work is staged here:

zephyrSerial: provide ARDUINO_ROUTER_SERIAL from DTS (#370)

@KurtE

2. What happens to existing sketches/Apps that use Serial to talk to pins 0,1? I assume
   we then use Serial1? I assume all of the existing code that currently uses Serial1 to talk to the other processor changes to Serial2?

Correct. This will be a breaking change for those sketches.

@KurtE

I think the PRs and like I mention are in the process of Allowing Monitor to be
superseded by Serial. Or I am completely out to lunch

I'm not sure if "superseded" is the correct way to describe the intent. It is rather that support is being added for the established convention of using the Serial object for communication via the board's USB CDC serial port. However, I am not aware of any intent to discourage the continued use of the Monitor object.

Going forward, it will be best to use Serial in any code that is intended to be generally portable. However, for code that is specific to the "bridge" architecture established in the UNO Q (but likely to propagate to other hybrid boards such as the VENTUNO Q), I think it will be best practices to continue to use the Monitor object, as this will ensure the reader of the code keeps in mind that the communication is being done via the "bridge".

[KurtE]

@GolamMostafa

D2/D3 practically support UNO R3 styled external interrupts INT0 and INT1, but the originating MCU's interrupt pins are not seen in your table of post #3.

Note: My excel document,

Is simply the table of Alternate Functions for each pin as was able to get excel to extract from their PDF... I had to do some massaging to combine tables that were extracted... I then edited in the Arduino Pin Number information.

Note: There is also a register for each port that says what each pin is: Input, Output, Alternate Function, (and I think Analog) was the 4th...

As for Interrupts: This table does not mention at all about the NVIC, EXTI setup where
The you can configure interrupts on the IO ports...

[KurtE]

@ptillisch

I'm not sure if "superseded" is the correct way to describe the intent. It is rather that support is being added for the established convention of using the Serial object for communication via the board's USB CDC serial port. However, I am not aware of any intent to discourage the continued use of the Monitor object.

Thanks, probably not the best word. But to me, it is sort of similar to UNO R4 Wifi,
where by default, the Serial object is hooked up to a hardware Serial port that connects
up to the ESP32, and there is code on the ESP32, which then sends it over the USB back to your host... I know probably different complexity of stuff!

[ptillisch]

You could say the same about the UNO R3, Mega 2560, which pass their serial communication though an ATmega16U2 chip, upon which runs a firmware that handles the UART <--> CDC serial data transmission, and the Nano Every, which does the same with its ATSAMD11 chip.

[KurtE]

@ptillisch

You could say the same about the UNO R3, Mega 2560, which pass their serial communication though an ATmega16U2 chip

You are absolutely right. I was thinking that, but only mentioned R4 Wifi as
it is also doing other functions, through another port for BT/Wifi...

Thanks again

[KurtE]

Quick note: The final piece of this was merged into the sources today.

Just verified, by building ArduinoCore-zephyr for the Q on the Q with latest sources.
Simple sketch:

#include <Arduino_RouterBridge.h>
void setup() {
  // put your setup code here, to run once:
  Monitor.begin();
  Serial.begin(115200);
  Serial1.begin(115200);

}

uint32_t loop_count;
void loop() {
  // put your main code here, to run repeatedly:
  loop_count++;
  Monitor.print("M:"); Monitor.println(loop_count);
  Serial.print("S:"); Serial.println(loop_count);
  Serial1.print("1:"); Serial1.println(loop_count);
  printk("K:%u\n", loop_count);
  delay(1000);
}

Output to Serial Monitor window:

S:261
M:262
S:262
M:263

Output to Serial1:

1:K:252
252
1:K:253
253
1:K:254
254

Note printk (print kernel) buffer sort of intermingles with Serial1 output...
(does this on the other zephyr installs as well...)

Edit: Unless you build from sources as I just did, you won't see this, until the next board release...

[GolamMostafa]

@KurtE

#include <Arduino_RouterBridge.h>
void setup() {
  // put your setup code here, to run once:
  Monitor.begin();
  Serial.begin(115200);
  Serial1.begin(115200);

}

I am familiart with:

Monitor.begin();
Serial.begin();   //UART(RX, TX) = UART(0, 1)

But NOT with Serial1.begin();
What is this -- which two-pin of the header of UNO Q does form this UART1(RX1, TX1)?

[KurtE]

@GolamMostafa

But NOT with Serial1.begin();
What is this -- which two-pin of the header of UNO Q does form this UART1(RX1, TX1)?

As I mentioned in the first post of this thread: When the next Arduino release of the Arduino Q board software, that Serial == Monitor

And @ptillish phrased it better in the posting:

@ptillisch

I'm not sure if "superseded" is the correct way to describe the intent. It is rather that support is being added for the established convention of using the Serial object for communication via the board's USB CDC serial port. However, I am not aware of any intent to discourage the continued use of the Monitor object.

And so with this Release Serial1 will be on pins 0, 1 in much the same way as other boards, like Uno R4. Giga, ...

[Merlin513]

@KurtE

As I mentioned in the first post of this thread: When the next Arduino release of the Arduino Q board software, that Serial == Monitor

A little confused on how this is suppose to work. I just tried a couple sketches that just use serial and nothing shows up on Serial.
// the setup function runs once when you press reset or power the board

void setup() {
  Monitor.begin();
  Serial.begin(115200);
  Serial1.begin(115200);
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

uint32_t icount = 0;
// the loop function runs over and over again forever
void loop() {
  Serial.println(icount++);
  Serial1.println(icount++);
  Monitor.println(icount++);
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
}

and I am not seeing anything output using Monitor, serial or serial1.

I also ran @KurtE's test sketch

#include <Arduino_RouterBridge.h>
void setup() {
  // put your setup code here, to run once:
  Monitor.begin();
  Serial.begin(115200);
  Serial1.begin(115200);

}

uint32_t loop_count;
void loop() {
  // put your main code here, to run repeatedly:
  loop_count++;
  Monitor.print("M:"); Monitor.println(loop_count);
  Serial.print("S:"); Serial.println(loop_count);
  Serial1.print("1:"); Serial1.println(loop_count);
  printk("K:%u\n", loop_count);
  delay(1000);
}

and not seeing any output - can some one confirm?

Edit: looks like its using
Used library Arduino_RouterBridge (0.4.1) in /home/arduino/.arduino15/internal/Arduino_RouterBridge_0.4.1_d378119a47d2c8c4/Arduino_RouterBridge

UPDATE: I restarted the IDE and its now working ??? strange