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boards/sipeed-longan-nano: improve peripherals doc
Available peripherals for the board are now shown ordered by RIOT peripheral names and by pins.
This commit is contained in:
Gunar Schorcht
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025f4fdf00
commit
7f0d560dd8
@ -26,7 +26,7 @@ on-board components:
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| RAM | 32 kByte | |
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| Flash | 128 KByte | |
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| Frequency | 108 MHz | |
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| Power Modes | 3 (Sleep, Deep Sleep, Standby) | no |
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| Power Modes | 3 (Sleep, Deep Sleep, Standby) | yes |
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| GPIOs | 37 | yes |
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| Timers | 5 x 16-bit timer | yes |
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| RTC | 1 x 32-bit counter, 20-bit prescaler | yes |
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@ -53,40 +53,89 @@ The general pin layout is shown below.
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@image html "https://longan.sipeed.com/assets/longan_nano_pinout_v1.1.0_w5676_h4000_large.png" "Sipeed Longan Nano Pinout" width=800
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The following table shows the connection of the on-board components with the
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MCU pins and their configuration in RIOT.
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The following tables show the connection of the on-board components with the
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MCU pins and their configuration in RIOT sorted by RIOT peripherals and
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by pins.
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| MCU Pin | MCU Peripheral | RIOT Peripheral | Board Function | Remark |
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|:--------|:---------------|:-----------------|:---------------|:-----------------------------|
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| PA0 | BOOT0 | BTN0 | BOOT | |
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| PA1 | | PWM_DEV(0) CH0 | LED1 green | |
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| PA2 | | PWM_DEV(0) CH1 | LED2 blue | |
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| PA3 | ADC01_IN3 | ADC_LINE(1) | | |
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| PA4 | ADC01_IN4 | ADC_LINE(6) | | N/A if SPI is used |
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| PA5 | ADC01_IN5 | ADC_LINE(7) | | N/A if SPI or TFT is used |
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| PA6 | ADC01_IN6 | ADC_LINE(8) | | N/A if SPI is used |
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| PA7 | ADC01_IN7 | ADC_LINE(9) | | N/A if SPI or TFT is used |
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| PA4 | SPI1 CS | SPI_DEV(1) CS | | N/A if ADC_LINE(6) is used |
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| PA5 | SPI1 SCLK | SPI_DEV(1) SCLK | | N/A if ADC_LINE(7) is used |
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| PA6 | SPI1 MISO | SPI_DEV(1) MISO | | N/A if ADC_LINE(8) is used |
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| PA7 | SPI1 MOSI | SPI_DEV(1) MOSI | | N/A if ADC_LINE(9) is used |
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| PA9 | USART0 TX | UART_DEV(0) TX | UART TX | |
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| PA10 | USART0 RX | UART_DEV(0) RX | UART RX | |
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| PB0 | ADC01_IN8 | ADC_LINE(4) | | N/A if TFT is used |
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| PB1 | ADC01_IN8 | ADC_LINE(5) | | N/A if TFT is used |
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| PB6 | I2C0 SCL | I2C_DEV(0) SCL | | |
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| PB7 | I2C0 SDA | I2C_DEV(0) SDA | | |
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| PB8 | | PWM_DEV(1) CH0 | | N/A if CAN is used |
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| PB9 | | PWM_DEV(1) CH1 | | N/A if CAN is used |
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| PB10 | I2C1 SCL | I2C_DEV(1) SCL | | |
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| PB11 | I2C1 SDA | I2C_DEV(1) SDA | | |
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| PB12 | SPI0 CS | SPI_DEV(0) CS | | |
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| PB13 | SPI0 SCLK | SPI_DEV(0) SCLK | | |
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| PB14 | SPI0 MISO | SPI_DEV(0) MISO | | |
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| PB15 | SPI0 MOSI | SPI_DEV(0) MOSI | | |
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| PC13 | | | LED0 red | |
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| - | ADC01_IN16 | ADC_LINE(2) | | internal Temperature channel |
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| - | ADC01_IN17 | ADC_LINE(3) | | internal VFEF channel |
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| RIOT Peripheral | MCU Pin | MCU Peripheral | Board Function | Remark |
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|:-----------------|:--------|:---------------|:---------------|:-------------------------------|
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| ADC_LINE(0) | PA0 | ADC01_IN0 | | |
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| ADC_LINE(1) | PA3 | ADC01_IN3 | | |
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| ADC_LINE(2) | - | ADC01_IN16 | | internal Temperature channel |
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| ADC_LINE(3) | - | ADC01_IN17 | | internal VFEF channel |
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| ADC_LINE(4) | PB0 | ADC01_IN8 | TFT RS | N/A if TFT is used |
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| ADC_LINE(5) | PB1 | ADC01_IN9 | TFT RST | N/A if TFT is used |
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| ADC_LINE(6) | PA6 | ADC01_IN6 | | N/A if TFT is used |
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| ADC_LINE(7) | PA7 | ADC01_IN7 | | N/A if TFT is used |
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| ADC_LINE(8) | PA8 | ADC01_IN4 | | N/A if TFT is used |
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| ADC_LINE(9) | PA9 | ADC01_IN5 | | N/A if TFT is used |
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| BTN0 | PA0 | BOOT0 | BOOT | |
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| DAC_LINE(0) | PA4 | DAC0 | | N/A if TFT is used |
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| DAC_LINE(1) | PA5 | DAC1 | | N/A if TFT is used |
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| GPIO_PIN(1, 2) | PB2 | | TFT CS | |
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| I2C_DEV(0) SCL | PB6 | I2C0 SCL | | |
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| I2C_DEV(0) SDA | PB7 | I2C0 SDA | | |
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| I2C_DEV(1) SCL | PB10 | I2C1 SCL | | |
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| I2C_DEV(1) SDA | PB11 | I2C1 SDA | | |
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| LED0 | PC13 | | LED red | |
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| LED1 | PA1 | | LED green | |
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| LED2 | PA2 | | LED blue | |
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| PWM_DEV(0) CH0 | PA1 | | LED green | |
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| PWM_DEV(0) CH1 | PA2 | | LED blue | |
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| PWM_DEV(1) CH0 | PB8 | | | N/A if CAN is used |
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| PWM_DEV(1) CH1 | PB9 | | | N/A if CAN is used |
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| SPI_DEV(0) CS | PB12 | SPI1 CS | SD CS | |
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| SPI_DEV(0) SCLK | PB13 | SPI1 SCLK | SD SCK | |
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| SPI_DEV(0) MISO | PB14 | SPI1 MISO | SD MISO | |
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| SPI_DEV(0) MOSI | PB15 | SPI1 MOSI | SD MOSI | |
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| SPI_DEV(1) CS | PA4 | SPI0 CS | | |
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| SPI_DEV(1) SCLK | PA5 | SPI0 SCLK | TFT SCL | |
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| SPI_DEV(1) MISO | PA6 | SPI0 MISO | | |
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| SPI_DEV(1) MOSI | PA7 | SPI0 MOSI | TFT SDA | |
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| UART_DEV(0) TX | PA9 | USART0 TX | UART TX | |
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| UART_DEV(0) RX | PA10 | USART0 RX | UART RX | |
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| Pin | Board Function | RIOT Function 1 | RIOT Function 2 | RIOT Function 3 |
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|:-----|:---------------|:----------------|:----------------|:----------------|
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| PA0 | | | ADC_LINE(0) | |
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| PA1 | LED green | PWM_DEV(0) CH0 | | LED0 |
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| PA2 | LED blue | PWM_DEV(0) CH1 | | LED1 |
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| PA3 | | | ADC_LINE(1) | |
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| PA4 | | SPI_DEV(1) CS | ADC_LINE(8)* | DAC_LINE(0)* |
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| PA5 | TFT SCL | SPI_DEV(1) SCLK | ADC_LINE(9)* | DAC_LINE(1)* |
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| PA6 | | SPI_DEV(1) MISO | ADC_LINE(6)* | |
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| PA7 | TFT SDA | SPI_DEV(1) MOSI | ADC_LINE(7)* | |
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| PA8 | | | | |
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| PA9 | | UART_DEV(0) TX | | |
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| PA10 | | UART_DEV(0) RX | | |
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| PA11 | USB D- | | | |
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| PA12 | USB D+ | | | |
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| PA13 | JTAG TMS | | | |
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| PA14 | JTAG TCK | | | |
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| PA15 | JTAG TDI | | | |
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| PB0 | TFT RS | | ADC_LINE(4) | |
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| PB1 | TFT RST | | ADC_LINE(5) | |
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| PB2 | TFT CS | | | |
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| PB3 | JTAG TDO | | | |
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| PB4 | JTAG NRST | | | |
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| PB5 | | | | |
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| PB6 | | I2C_DEV(0) SCL | | |
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| PB7 | | I2C_DEV(0) SDA | | |
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| PB8 | | PWM_DEV(1) CH0 | | |
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| PB9 | | PWM_DEV(1) CH1 | | |
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| PB10 | | I2C_DEV(1) SCL | | |
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| PB11 | | I2C_DEV(1) SDA | | |
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| PB12 | SD CS | SPI_DEV(0) CS | | |
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| PB13 | SD SCK | SPI_DEV(0) SCLK | | |
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| PB14 | SD MISO | SPI_DEV(0) MISO | | |
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| PB15 | SD MOSI | SPI_DEV(0) MOSI | | |
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| PC13 | LED red | | | LED3 |
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| PC14 | OSC32IN | | | |
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| PC15 | OSC32OUT | | | |
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| - | Temperature | | ADC_LINE(2) | |
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| - | VREF | | ADC_LINE(3) | |
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(*) The availability of these peripherals depend on the use of other peripherals.
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@note Since the availability of `ADC_LINE(4)` to `ADC_LINE(9)` depends on other
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peripheral configurations, their index may vary.
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