Add preliminary STM32F746ZG-Nucleo support

4 files changed, 230 insertions, 0 deletions

diff --git a/include/arch/stm32f746zg-nucleo/driver/counter.h b/include/arch/stm32f746zg-nucleo/driver/counter.h
new file mode 100644
index 0000000..ef993bd
--- /dev/null
+++ b/include/arch/stm32f746zg-nucleo/driver/counter.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef COUNTER_H
+#define COUNTER_H
+
+#include <libopencm3/stm32/timer.h>
+
+#include "arch.h"
+
+typedef uint32_t counter_value_t;
+typedef uint32_t counter_overflow_t;
+
+class Counter {
+	private:
+		Counter(const Counter &copy);
+
+	public:
+		counter_value_t value;
+		volatile counter_overflow_t overflow;
+
+		Counter() : overflow(0) {}
+
+		inline void start() {
+			overflow = 0;
+			timer_set_counter(TIM2, 0);
+			timer_enable_counter(TIM2);
+		}
+
+		inline void stop() {
+			timer_disable_counter(TIM2);
+			value = timer_get_counter(TIM2);
+		}
+};
+
+extern Counter counter;
+
+#endif
diff --git a/include/arch/stm32f746zg-nucleo/driver/gpio.h b/include/arch/stm32f746zg-nucleo/driver/gpio.h
new file mode 100644
index 0000000..9eb81c0
--- /dev/null
+++ b/include/arch/stm32f746zg-nucleo/driver/gpio.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef GPIO_H
+#define GPIO_H
+
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+
+class GPIO {
+	private:
+		GPIO(const GPIO &copy);
+
+	public:
+		GPIO () {}
+
+		enum Pin : unsigned char {
+			pa0 = 0, pa1, pa2, pa3, pa4, pa5, pa6, pa7,
+			pa8, pa9, pa10, pa11, pa12, pa13, pa14, pa15,
+			pb0, pb1, pb2, pb3, pb4, pb5, pb6, pb7,
+			pb8, pb9, pb10, pb11, pb12, pb13, pb14, pb15,
+			pc0, pc1, pc2, pc3, pc4, pc5, pc6, pc7,
+			pc8, pc9, pc10, pc11, pc12, pc13, pc14, pc15,
+			pd0, pd1, pd2, pd3, pd4, pd5, pd6, pd7,
+			pd8, pd9, pd10, pd11, pd12, pd13, pd14, pd15,
+			pe0, pe1, pe2, pe3, pe4, pe5, pe6, pe7,
+			pe8, pe9, pe10, pe11, pe12, pe13, pe14, pe15,
+			pf0, pf1, pf2, pf3, pf4, pf5, pf6, pf7,
+			pf8, pf9, pf10, pf11, pf12, pf13, pf14, pf15,
+			pg0, pg1, pg2, pg3, pg4, pg5, pg6, pg7,
+			pg8, pg9, pg10, pg11, pg12, pg13, pg14, pg15,
+			ph0, ph1, ph2, ph3, ph4, ph5, ph6, ph7,
+			ph8, ph9, ph10, ph11, ph12, ph13, ph14, ph15,
+			PIN_INVALID
+		};
+
+		inline void setup() {
+			rcc_periph_clock_enable(RCC_GPIOA);
+			rcc_periph_clock_enable(RCC_GPIOB);
+			rcc_periph_clock_enable(RCC_GPIOC);
+			rcc_periph_clock_enable(RCC_GPIOD);
+
+			// Set LEDs as output
+			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO0);
+			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);
+			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO14);
+		}
+		inline void led_on(unsigned char id = 0) {
+			if (id == 2) {
+				gpio_set(GPIOB, GPIO0);
+			} else if (id == 1) {
+				gpio_set(GPIOB, GPIO7);
+			} else {
+				gpio_set(GPIOB, GPIO14);
+			}
+		}
+		inline void led_off(unsigned char id = 0) {
+			if (id == 2) {
+				gpio_clear(GPIOB, GPIO0);
+			} else if (id == 1) {
+				gpio_clear(GPIOB, GPIO7);
+			} else {
+				gpio_clear(GPIOB, GPIO14);
+			}
+		}
+		inline void led_toggle(unsigned char id = 0) {
+			if (id == 2) {
+				gpio_toggle(GPIOB, GPIO0);
+			} else if (id == 1) {
+				gpio_toggle(GPIOB, GPIO7);
+			} else {
+				gpio_toggle(GPIOB, GPIO14);
+			}
+		}
+		inline void input(unsigned char const pin) {
+			if (pin < pb0) {
+				gpio_mode_setup(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << pin);
+			} else if (pin < pc0) {
+				gpio_mode_setup(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << (pin - pb0));
+			} else if (pin < PIN_INVALID) {
+				gpio_mode_setup(GPIOC, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << (pin - pc0));
+			}
+		}
+		inline void input(unsigned char const pin, unsigned char const pull) {
+		}
+		inline void output(unsigned char const pin) {
+			if (pin < pb0) {
+				gpio_mode_setup(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << pin);
+			} else if (pin < pc0) {
+				gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << (pin - pb0));
+			} else if (pin < PIN_INVALID) {
+				gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << (pin - pc0));
+			}
+		}
+		/*
+		inline void output(unsigned char const pin, unsigned char const value) {
+		}*/
+		inline unsigned int read(unsigned char const pin) {
+			if (pin < pb0) {
+				return gpio_get(GPIOA, 1 << pin);
+			} else if (pin < pc0) {
+				return gpio_get(GPIOB, 1 << (pin-pb0));
+			} else if (pin < PIN_INVALID) {
+				return gpio_get(GPIOC, 1 << (pin-pc0));
+			}
+		}
+		inline void write(unsigned char const pin, unsigned char value) {
+			if (pin < pb0) {
+				if (value) {
+					gpio_port_write(GPIOA, gpio_port_read(GPIOA) | (1 << pin));
+				} else {
+					gpio_port_write(GPIOA, gpio_port_read(GPIOA) & ~(1 << pin));
+				}
+			} else if (pin < pc0) {
+				if (value) {
+					gpio_port_write(GPIOB, gpio_port_read(GPIOB) | (1 << (pin-pb0)));
+				} else {
+					gpio_port_write(GPIOB, gpio_port_read(GPIOB) & ~(1 << (pin-pb0)));
+				}
+			} else if (pin < PIN_INVALID) {
+				if (value) {
+					gpio_port_write(GPIOC, gpio_port_read(GPIOC) | (1 << (pin-pc0)));
+				} else {
+					gpio_port_write(GPIOC, gpio_port_read(GPIOC) & ~(1 << (pin-pc0)));
+				}
+			}
+		}
+};
+
+extern GPIO gpio;
+
+#endif
diff --git a/include/arch/stm32f746zg-nucleo/driver/stdout.h b/include/arch/stm32f746zg-nucleo/driver/stdout.h
new file mode 100644
index 0000000..fa04e1b
--- /dev/null
+++ b/include/arch/stm32f746zg-nucleo/driver/stdout.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef STANDARDOUTPUT_H
+#define STANDARDOUTPUT_H
+
+#include "object/outputstream.h"
+
+class StandardOutput : public OutputStream {
+	private:
+		StandardOutput(const StandardOutput &copy);
+
+	public:
+		StandardOutput () {}
+		void setup();
+
+		virtual void put(char c) override;
+};
+
+extern StandardOutput kout;
+
+#endif
diff --git a/include/arch/stm32f746zg-nucleo/driver/uptime.h b/include/arch/stm32f746zg-nucleo/driver/uptime.h
new file mode 100644
index 0000000..cae3424
--- /dev/null
+++ b/include/arch/stm32f746zg-nucleo/driver/uptime.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef UPTIME_H
+#define UPTIME_H
+
+#include <stdint.h>
+
+class Uptime {
+	private:
+		Uptime(const Uptime &copy);
+#ifdef TIMER_S
+		uint32_t seconds;
+#endif
+
+	public:
+#ifdef TIMER_S
+		Uptime () : seconds(0) {}
+#else
+		Uptime () {}
+#endif
+#ifdef TIMER_S
+		inline uint32_t get_s() { return seconds; }
+		inline void tick_s() { seconds++; }
+#endif
+};
+
+extern Uptime uptime;
+
+#endif