diff options
| -rw-r--r-- | source/hardware/maple.rst | 87 | ||||
| -rw-r--r-- | source/i2c.rst | 2 | ||||
| -rw-r--r-- | source/index.rst | 1 | ||||
| -rw-r--r-- | source/libmaple/api/systick.rst | 5 | ||||
| -rw-r--r-- | source/systick.rst | 13 | ||||
| -rw-r--r-- | source/timers.rst | 27 |
6 files changed, 77 insertions, 58 deletions
diff --git a/source/hardware/maple.rst b/source/hardware/maple.rst index e460e00..c2dc895 100644 --- a/source/hardware/maple.rst +++ b/source/hardware/maple.rst @@ -136,49 +136,54 @@ the header is connected to on the microcontroller. The "5V?" column documents whether or not the pin is 5 volt tolerant. .. csv-table:: - :header: "Pin", "STM32", ":ref:`ADC <adc>`", ":ref:`Timer <timers>`", ":ref:`I2C <i2c>`", ":ref:`UART <usart>`", ":ref:`SPI <spi>`", "5v?" - - "D0", "PA3", "ADC3", "TIM2_CH4", "-", "USART2_RX", "-", "No" - "D1", "PA2", "ADC2", "TIM2_CH3", "-", "USART2_TX", "-", "No" - "D2", "PA0", "ADC0", "TIM2_CH1_ETR", "-", "USART2_CTS", "-", "No" - "D3", "PA1", "ADC1", "TIM2_CH2", "-", "USART2_RTS", "-", "No" - "D4", "PB5", "-", "-", "ISC1_SMBA", "-", "-", "No" - "D5", "PB6", "-", "TIM4_CH1", "I2C1_SCL", "-", "-", "Yes" - "D6", "PA8", "-", "TIM1_CH1", "-", "USART1_CK", "-", "Yes" - "D7", "PA9", "-", "TIM1_CH2", "-", "USART1_TX", "-", "Yes" - "D8", "PA10", "-", "TIM1_CH3", "-", "USART1_RX", "-", "Yes" - "D9", "PB7", "-", "TIM4_CH2", "I2C1_SDA", "-", "-", "Yes" - "D10", "PA4", "ADC4", "-", "-", "USART2_CK", "SPI1_NSS", "No" - "D11", "PA7", "ADC7", "TIM3_CH2", "-", "-", "SPI1_MOSI", "No" - "D12", "PA6", "ADC6", "TIM3_CH1", "-", "-", "SPI1_MISO", "No" - "D13", "PA5", "ADC5", "-", "-", "-", "SPI1_SCK", "No" - "D14", "PB8", "-", "TIM4_CH3", "-", "-", "-", "Yes" - "D15", "PC0", "ADC10", "-", "-", "-", "-", "No" - "D16", "PC1", "ADC11", "-", "-", "-", "-", "No" - "D17", "PC2", "ADC12", "-", "-", "-", "-", "No" - "D18", "PC3", "ADC13", "-", "-", "-", "-", "No" - "D19", "PC4", "ADC14", "-", "-", "-", "-", "No" - "D20", "PC5", "ADC15", "-", "-", "-", "-", "No" - "D21", "PC13", "-", "-", "-", "-", "-", "No" - "D22", "PC14", "-", "-", "-", "-", "-", "No" - "D23", "PC15", "-", "-", "-", "-", "-", "No" - "D24", "PB9", "-", "TIM4_CH4", "-", "-", "-", "Yes" - "D25", "PD2", "-", "TIM3_ETR", "-", "-", "-", "Yes" - "D26", "PC10", "-", "-", "-", "-", "-", "Yes" - "D27", "PB0", "ADC8", "TIM3_CH3", "-", "-", "-", "No" - "D28", "PB1", "ADC9", "TIM3_CH4", "-", "-", "-", "No" - "D29", "PB10", "-", "-", "I2C2_SCL", "USART3_TX", "-", "Yes" - "D30", "PB11", "-", "-", "I2C2_SDA", "USART3_RX", "-", "Yes" - "D31", "PB12", "-", "TIM1_BKIN", "I2C2_SMBA", "USART3_CK", "SPI2_NSS", "Yes" - "D32", "PB13", "-", "TIM1_CH1N", "-", "USART3_CTS", "SPI2_SCK", "Yes" - "D33", "PB14", "-", "TIM1_CH2N", "-", "USART3_RTS", "SPI2_MISO", "Yes" - "D34", "PB15", "-", "TIM1_CH3N", "-", "-", "SPI2_MOSI", "Yes" - "D35", "PC6", "-", "-", "-", "-", "-", "Yes" - "D36", "PC7", "-", "-", "-", "-", "-", "Yes" - "D37", "PC8", "-", "-", "-", "-", "-", "Yes" + :header: Pin, STM32, :ref:`ADC <adc>`, :ref:`Timer <timers>`, :ref:`I2C <i2c>`, :ref:`UART <usart>`, :ref:`SPI <spi>`, 5v? + + D0, PA3, ADC3, TIM2_CH4, -, USART2_RX, -, No + D1, PA2, ADC2, TIM2_CH3, -, USART2_TX, -, No + D2, PA0, ADC0, TIM2_CH1_ETR, -, USART2_CTS, -, No + D3, PA1, ADC1, TIM2_CH2, -, USART2_RTS, -, No + D4, PB5, -, -, ISC1_SMBA, -, -, No + D5, PB6, -, TIM4_CH1, I2C1_SCL, -, -, Yes + D6, PA8, -, TIM1_CH1, -, USART1_CK, -, Yes + D7, PA9, -, TIM1_CH2, -, USART1_TX, -, Yes + D8, PA10, -, TIM1_CH3, -, USART1_RX, -, Yes + D9, PB7, -, TIM4_CH2, I2C1_SDA, -, -, Yes + D10, PA4, ADC4, -, -, USART2_CK, SPI1_NSS, No + D11, PA7, ADC7, TIM3_CH2, -, -, SPI1_MOSI, No + D12, PA6, ADC6, TIM3_CH1, -, -, SPI1_MISO, No + D13, PA5, ADC5, -, -, -, SPI1_SCK, No + D14, PB8, -, TIM4_CH3, -, -, -, Yes + D15, PC0, ADC10, -, -, -, -, No + D16, PC1, ADC11, -, -, -, -, No + D17, PC2, ADC12, -, -, -, -, No + D18, PC3, ADC13, -, -, -, -, No + D19, PC4, ADC14, -, -, -, -, No + D20, PC5, ADC15, -, -, -, -, No + D21, PC13, -, -, -, -, -, No + D22, PC14, -, -, -, -, -, No + D23, PC15, -, -, -, -, -, No + D24, PB9, -, TIM4_CH4, -, -, -, Yes + D25, PD2, -, TIM3_ETR, -, -, -, Yes + D26, PC10, -, -, -, -, -, Yes + D27, PB0, ADC8, TIM3_CH3, -, -, -, No + D28, PB1, ADC9, TIM3_CH4, -, -, -, No + D29, PB10, -, -, I2C2_SCL, USART3_TX, -, Yes + D30, PB11, -, -, I2C2_SDA, USART3_RX, -, Yes + D31, PB12, -, TIM1_BKIN, I2C2_SMBA, USART3_CK, SPI2_NSS, Yes + D32, PB13, -, TIM1_CH1N, -, USART3_CTS, SPI2_SCK, Yes + D33, PB14, -, TIM1_CH2N, -, USART3_RTS, SPI2_MISO, Yes + D34, PB15, -, TIM1_CH3N, -, -, SPI2_MOSI, Yes + D35, PC6, -, -, -, -, -, Yes + D36, PC7, -, -, -, -, -, Yes + D37, PC8, -, -, -, -, -, Yes .. TODO [0.0.10] JTAG pins +.. The following pins are used for :ref:`jtag` debugging by default, but +.. can be used as ordinary GPIOs through the use of the +.. :ref:`lang-disabledebugports` function. (Though see :ref:`this +.. erratum <maple-reset-njtrst>`). + Timer Pin Map ^^^^^^^^^^^^^ @@ -353,6 +358,8 @@ Rev 5 from its silkscreen. This mistake was fixed in later manufacturing runs. +.. _maple-reset-njtrst: + * **Reset and NJTRST tied together**: The MCU's reset pin is connected to PB4, the NJTRST pin, which is pin 43. Thus, attempting to use pin 43 as a GPIO will reset your board (and also prevents the JTAG diff --git a/source/i2c.rst b/source/i2c.rst index e3d68c0..31976ac 100644 --- a/source/i2c.rst +++ b/source/i2c.rst @@ -25,7 +25,7 @@ interrupt handlers) at the same time. Hardware/Circuit Design ----------------------- -.. FIXME [0.0.10 add links to board-specific values] +.. FIXME [0.1.0] Link to board-specific values (BOARD_I2C1_SDA_PIN, etc.) Maple boards have two |i2c| ports. Maples reliably communicate with up to a 400kHz clock speed; this doesn't translate into a 400kbps data diff --git a/source/index.rst b/source/index.rst index f6b7f92..ce3985f 100644 --- a/source/index.rst +++ b/source/index.rst @@ -54,6 +54,7 @@ Have fun! pwm spi timers + systick usb usart diff --git a/source/libmaple/api/systick.rst b/source/libmaple/api/systick.rst index a02b8e4..a8c0971 100644 --- a/source/libmaple/api/systick.rst +++ b/source/libmaple/api/systick.rst @@ -1,14 +1,13 @@ .. highlight:: c - -.. _libmaple-systick: - .. FIXME [0.0.10] move these to the right places: .. _libmaple-systick_disable: .. _libmaple-systick_resume: +.. _libmaple-systick: + ``systick.h`` ============= diff --git a/source/systick.rst b/source/systick.rst new file mode 100644 index 0000000..6f20133 --- /dev/null +++ b/source/systick.rst @@ -0,0 +1,13 @@ +SysTick +======= + +.. TODO Recommended reading and more content. + +The SysTick peripheral provides a timer which :ref:`libmaple` uses to +keep track of the board's uptime. + +Library Documentation +--------------------- + +See :ref:`libmaple-systick` for more information on library support +for interfacing with the SysTick peripheral. diff --git a/source/timers.rst b/source/timers.rst index 9163e69..403193f 100644 --- a/source/timers.rst +++ b/source/timers.rst @@ -5,8 +5,6 @@ Timers ====== -.. FIXME [0.0.10] links to systick.h in a few places on this page - There are four general purpose timers in the Maple microcontroller that can be configured to generate periodic or delayed events with minimal work done by the microcontroller. For example, the :ref:`PWM @@ -55,10 +53,11 @@ events to be programmed at 4 different rates on a single timer. Note that function call overheads mean that the smallest increment rate is at least a few microseconds. -Function Reference ------------------- +Library Documentation +--------------------- -* :ref:`HardwareTimer <lang-hardwaretimer>` +See the :ref:`HardwareTimer <lang-hardwaretimer>` reference for more +information on controlling the built-in timers. Caveats ------- @@ -109,12 +108,12 @@ you put your Maple into :ref:`perpetual bootloader mode to it (or somehow causing your program to re-enable serial over USB using :ref:`SerialUSB.begin() <lang-serialusb-begin>`). -The SysTick peripheral another way to perform periodic or delayed -events. Its separate timer does not conflict with any other -peripherals, but the associated 1 kHz interrupt can jitter the general -purpose timer interrupts. The SysTick peripheral can be disabled by -calling :ref:`systick_disable() <libmaple-systick_disable>`, and -re-enabled using :ref:`systick_resume() <libmaple-systick_resume>`. -However, be aware that calling ``systick_disable()`` will stop the -values coming from :ref:`lang-micros` and :ref:`lang-millis` from -increasing. +The :ref:`SysTick <systick>` peripheral another way to perform +periodic or delayed events. Its separate timer does not conflict with +any other peripherals, but the associated 1 kHz interrupt can jitter +the general purpose timer interrupts. The SysTick peripheral can be +disabled by calling :ref:`systick_disable() +<libmaple-systick_disable>`, and re-enabled using +:ref:`systick_resume() <libmaple-systick_resume>`. However, be aware +that calling ``systick_disable()`` will stop the values coming from +:ref:`lang-micros` and :ref:`lang-millis` from increasing. |