initial merge of #26

8 files changed, 506 insertions, 30 deletions

diff --git a/src/ds.c b/src/ds.c
new file mode 100644
index 0000000..d6d4357
--- /dev/null
+++ b/src/ds.c
@@ -0,0 +1,15 @@
+#include "main.h"
+#include "ppu/ppu.h"
+#include "demo.h"
+
+void hh_setup() {
+	hh_ppu_init();
+
+	hh_demo_setup();
+}
+
+void hh_exit() {
+	g_hh_run = false;
+
+	hh_ppu_deinit();
+}
diff --git a/src/ds.mk b/src/ds.mk
index d4354a2..b5633b3 100644
--- a/src/ds.mk
+++ b/src/ds.mk
@@ -10,5 +10,6 @@ endif
 DESKTOP_SRCS += ppusim/sim.c \
 								ppusim/mem.c \
 								ppusim/pixel.c \
-								ppusim/work.c
+								ppusim/work.c \
+								ds.c
 
diff --git a/src/main.c b/src/main.c
index f4de225..ee6125f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,13 +1,98 @@
 #include <stdlib.h>
 
 #include "main.h"
-#include "ppu/ppu.h"
 #include "demo.h"
 
 bool g_hh_run = true;
 
+static int8_t buttonDPAD[] = {0,0,0,0}; //1left 2right 3down 4up
+
+struct playerData{
+	uint16_t posX;
+	uint16_t posY;
+	uint8_t radius;
+	uint8_t rotation; //45 degrees steps 0 == right 2 == down 4 == left 6 == up
+	uint8_t directionX; //direction where its looking at in case no input;
+	int8_t speed;	//10 default L/R MODifier
+	bool inAir;
+
+};
+
+struct playerData player1;
+
+uint8_t tileMap[30][40] =
+  {
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 }
+
+
+
+  };
+
+void buttonRead();
+void playerMovement();
+void sendData(uint8_t, uint16_t);
+
+  uint16_t pos_x; //0b0000 0001 0011 0110
+  uint16_t pos_y;
+
+  uint8_t left = 0;
+  uint8_t right = 0;
+  uint8_t up = 0;
+  uint8_t down = 0;
+
+
+
+  uint8_t pos_x_bit[2];
+  uint8_t pos_y_bit[2];
+  uint8_t data_send[3];
+
+  int tileX;
+  int tileY;
+//  struct playerData player1;
+ //int buttons[] = {GPIO_PIN_4,GPIO_PIN_5,GPIO_PIN_6,GPIO_PIN_8}; // 1 left // 2 right // 3 up // 4 down
+
+
 int main() {
 	hh_setup();
+
+/// init struct
+  player1.posX = 31000; //0b0000 0001 0011 0110
+  player1.posY = 21000;
+  player1.radius = 8;
+  player1.speed = 1;
+  player1.directionX = 1;
+  player1.rotation = 8;
+  player1.inAir = false;
+
 	hh_loop();
 	hh_exit();
 	return 0;
@@ -17,17 +102,163 @@ void hh_ppu_vblank_interrupt() {
 	static unsigned long frame = 0;
 	frame++;
 
-	hh_demo_loop(frame);
+	buttonRead();
+	playerMovement();
+
+
+	// send data via SPI //adjust map size
+	pos_x = player1.posX / 100;
+	pos_y = player1.posY / 100;
+
+	sendData(0b01000000,pos_x);
+	sendData(0b00000000,pos_y);
+
+	// hh_demo_loop(frame);
 }
 
-void hh_setup() {
-	hh_ppu_init();
+void sendData(uint8_t address, uint16_t data)
+{
+			uint8_t bitData[3];
+			bitData[2] = data & 0xff;
+			bitData[1] = (data >> 8);
+			bitData[0] = address; // first byte is address
+
+
+
+			HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
+			HAL_SPI_Transmit(&hspi1, bitData, 3, 100); //2*8 bit data
+			HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
 
-	hh_demo_setup();
 }
 
-void hh_exit() {
-	g_hh_run = false;
+void buttonRead()
+{
+	//int buttons[] = {GPIO_PIN_4,GPIO_PIN_5,GPIO_PIN_6,GPIO_PIN_8}; // 1 left // 2 right // 3 down // 4 up  8-6-4-5
+	uint16_t buttons[] = {0x0100U,0x0040U,0x0010U,0x0020U}; // 1 left // 2 right // 3 down // 4 up
+
+	for(int i = 0; i < 4; i++)
+	{
+		if(HAL_GPIO_ReadPin(GPIOB, buttons[i]) == 1)
+		{
+			if((i+2) % 2 == 0)
+			{
+				buttonDPAD[i] = 1;
+			}
+			else
+			{
+				buttonDPAD[i] = -1;
+			}
+		}
+		else
+		{
+			buttonDPAD[i] = 0;
+		}
+	}
+}
+
+void playerMovement()
+{
+
+	int8_t directionX = 0; // -1 = L || 1 == R
+	int8_t directionY = 0; // -1 = D || 1 == U
+
+	uint8_t i,j;
+	uint8_t rotation = 0; // 0-7
+	//temp var for testing
+
+
+
+	// direction calc
+	directionX = buttonDPAD[0] + buttonDPAD[1];
+	directionY = buttonDPAD[2] + buttonDPAD[3];
+
+	//rotation calc
+	for(i = -1; i < 2;i++)
+	{
+		for(j = -1; j < 2; j++)
+		{
+			if(directionX == i)
+			{
+				if(directionY == j)
+				{
+					if(i != 0 && j != 0) //dont update when player idle
+					{
+						player1.rotation = rotation;
+					}
+				}
+			}
+		rotation++;
+		}
+	}
+	//direction calc
+	if(directionX != 0) //update direction if player is not idle
+	{
+		player1.directionX = directionX;
+	}
+	//collision map x-axis
+
+	//tile calc including radius and direction for background coliision
+
+	uint16_t tileColX;
+	uint16_t tileColY = ( player1.posY / 100) / 16; ;
+
+	// remaining space between grid and exact
+	uint8_t modTileX;
+	uint8_t modTileY;
+
+
+
+	if(player1.inAir == false && directionX != 0)
+	{
+		if(directionX == 1)
+		{
+			tileColX = ( ( player1.posX / 100) + player1.radius ) / 20;
+			modTileX = ( player1.posX + ( 100 * player1.radius ) ) % 2000;
+		}
+		else if(directionX == -1)
+		{
+			tileColX = ( ( player1.posX / 100) - player1.radius ) / 20;
+			modTileX = ( player1.posX - ( 100 * player1.radius ) ) % 2000;
+		}
+
+			if(tileMap[tileColY][tileColX + directionX] != 1)
+			{
+				player1.posX = player1.posX + (directionX * player1.speed); // NEW x set
+			}
+
+			else if(tileMap[tileColY][tileColX + directionX] == 1)
+			{
+				if(modTileX < player1.speed)
+				{
+					player1.posX = player1.posX + (directionX * modTileX); // NEW x set
+				}
+				else
+				{
+					player1.posX = player1.posX + (directionX * player1.speed); // NEW x set
+				}
+			}
+
+	}
+	else //if in air different all borders have to be checked
+	{
+
+	}
+
+	//collision map floor (y-axis) (falling)
+	// if falling no jump press (implement)
+	/*
+	tileColY = (( player1.posY / 100) + player1.radius) / 16; //bottom of player box
+	modTileY = 1;
+	if(tileMap[tileColY+1][tileColX] != 1) //rework after jumping
+	{
+		player1.posY = player1.posY + 5 ;// NEW y set //makew var gravity
+		//playerStat = falling; //for later use of graphics/sound
+	}
+	*/
+	//else if(tileMap[])
+
+
+
+
 
-	hh_ppu_deinit();
 }
diff --git a/src/ppu/stm.c b/src/ppu/stm.c
new file mode 100644
index 0000000..fd4a18c
--- /dev/null
+++ b/src/ppu/stm.c
@@ -0,0 +1,4 @@
+#include "ppu/ppu.h"
+
+void hh_ppu_init() {}
+void hh_ppu_deinit() {}
diff --git a/src/stm32.mk b/src/stm32.mk
index 6926dea..eab34a4 100644
--- a/src/stm32.mk
+++ b/src/stm32.mk
@@ -43,22 +43,24 @@ STM_SRCS += lib/FreeRTOS-Kernel/croutine.c \
             lib/FreeRTOS-Kernel/timers.c \
             lib/FreeRTOS-Kernel/portable/GCC/ARM_CM0/port.c \
             lib/FreeRTOS-Kernel/portable/MemMang/heap_4.c
-STM_SRCS += lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_i2c.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_i2c_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_gpio.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_dma.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_cortex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash_ex.c \
+STM_SRCS += lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_spi.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_spi_ex.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_tim.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_tim_ex.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart_ex.c
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_cortex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_dma.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_gpio.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc_ex.c
 STM_SRCS += stm32/idle_task_static_memory.c \
-						stm32/main.c
+						stm32/main.c \
+						stm32/setup.c \
+						ppu/stm.c
 
diff --git a/src/stm32/setup.c b/src/stm32/setup.c
new file mode 100644
index 0000000..2c3552b
--- /dev/null
+++ b/src/stm32/setup.c
@@ -0,0 +1,197 @@
+#include <stm32f0xx_hal.h>
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_gpio.h>
+#include <FreeRTOS.h>
+#include <task.h>
+
+#include "main.h"
+#include "setup.h"
+#include "ppu/ppu.h"
+
+UART_HandleTypeDef huart2 = {
+	.Instance = USART2,
+	.Init.BaudRate = 115200,
+	.Init.WordLength = UART_WORDLENGTH_8B,
+	.Init.StopBits = UART_STOPBITS_1,
+	.Init.Parity = UART_PARITY_NONE,
+	.Init.Mode = UART_MODE_TX_RX,
+	.Init.HwFlowCtl = UART_HWCONTROL_NONE,
+	.Init.OverSampling = UART_OVERSAMPLING_16,
+	.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE,
+	.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT,
+};
+
+GPIO_InitTypeDef spi_gpio = {
+	.Pin = HH_IO_SPI_PINS,
+	.Mode = GPIO_MODE_AF_PP,
+	.Pull = GPIO_NOPULL,
+	.Speed = GPIO_SPEED_FREQ_HIGH,
+	.Alternate = GPIO_AF0_SPI1,
+};
+
+SPI_HandleTypeDef hspi1 = {
+	.Instance = SPI1,
+	.Init.Mode = SPI_MODE_MASTER,
+	.Init.Direction = SPI_DIRECTION_1LINE,
+	.Init.DataSize = SPI_DATASIZE_8BIT,
+	.Init.CLKPolarity = SPI_POLARITY_LOW,
+	.Init.CLKPhase = SPI_PHASE_1EDGE,
+	.Init.NSS = SPI_NSS_SOFT,
+	.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16,
+	.Init.FirstBit = SPI_FIRSTBIT_MSB,
+	.Init.TIMode = SPI_TIMODE_DISABLE,
+	.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE,
+	.Init.CRCPolynomial = 7,
+	.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE,
+	.Init.NSSPMode = SPI_NSS_PULSE_DISABLE,
+};
+
+TIM_HandleTypeDef htim3 = {
+	.Instance = TIM3,
+	.Init.Prescaler = 7999,
+	.Init.CounterMode = TIM_COUNTERMODE_UP,
+	.Init.Period = 65535,
+	.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1,
+	.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE,
+};
+
+static void hh_io_spi_setup();
+static void hh_io_tim_setup();
+static void hh_io_usart2_setup();
+static void hh_io_gpio_setup();
+static void hh_io_clock_setup();
+static void hh_io_setup_error_handler();
+
+void hh_setup() {
+	HAL_Init();
+
+	hh_io_clock_setup();
+	hh_io_usart2_setup();
+	hh_io_gpio_setup();
+	hh_io_spi_setup();
+	hh_io_tim_setup();
+
+	hh_ppu_init();
+}
+
+void hh_exit() {
+	hh_ppu_deinit();
+
+	HAL_DeInit();
+}
+
+void hh_io_clock_setup() {
+	if (HAL_OK != HAL_RCC_OscConfig(&(RCC_OscInitTypeDef){
+		.OscillatorType = RCC_OSCILLATORTYPE_HSI,
+		.HSIState = RCC_HSI_ON,
+		.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT,
+		.PLL.PLLState = RCC_PLL_ON,
+	})) return hh_io_setup_error_handler();
+
+	// cpu, ahb & apb clocks
+	if (HAL_OK != HAL_RCC_ClockConfig(&(RCC_ClkInitTypeDef){
+		.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1,
+		.SYSCLKSource = RCC_SYSCLKSOURCE_HSI,
+		.AHBCLKDivider = RCC_SYSCLK_DIV1,
+		.APB1CLKDivider = RCC_HCLK_DIV1,
+	}, FLASH_LATENCY_1)) return hh_io_setup_error_handler();
+
+	// usart2 clock (usb serial)
+	if (HAL_RCCEx_PeriphCLKConfig(&(RCC_PeriphCLKInitTypeDef){
+		.PeriphClockSelection = RCC_PERIPHCLK_USART2,
+		.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1,
+		.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI,
+	}) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_spi_setup() {
+	if (HAL_SPI_Init(&hspi1) != HAL_OK)
+		return hh_io_setup_error_handler();
+}
+
+void hh_io_usart2_setup() {
+	if (HAL_UART_Init(&huart2) != HAL_OK)
+		return hh_io_setup_error_handler();
+}
+
+void hh_io_tim_setup() {
+	if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
+		return hh_io_setup_error_handler();
+
+	if (HAL_TIM_ConfigClockSource(&htim3, &(TIM_ClockConfigTypeDef) {
+		.ClockSource = TIM_CLOCKSOURCE_INTERNAL
+	}) != HAL_OK) return hh_io_setup_error_handler();
+
+	if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &(TIM_MasterConfigTypeDef) {
+		.MasterOutputTrigger = TIM_TRGO_RESET,
+		.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE,
+	}) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_gpio_setup() {
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+
+  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
+	HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+		.Pin = GPIO_PIN_9,
+		.Mode = GPIO_MODE_OUTPUT_PP,
+		.Pull = GPIO_NOPULL,
+		.Speed = GPIO_SPEED_FREQ_LOW,
+	});
+	HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+		.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_8,
+		.Mode = GPIO_MODE_INPUT,
+		.Pull = GPIO_PULLDOWN,
+	});
+}
+
+void HAL_MspInit() {
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+  __HAL_RCC_PWR_CLK_ENABLE();
+}
+
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
+  if(hspi->Instance != SPI1) return;
+
+	__HAL_RCC_SPI1_CLK_ENABLE();
+	__HAL_RCC_GPIOA_CLK_ENABLE();
+
+	HAL_GPIO_Init(HH_IO_SPI_PORT, &spi_gpio);
+}
+
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
+  if(hspi->Instance != SPI1) return;
+
+	__HAL_RCC_SPI1_CLK_DISABLE();
+
+	HAL_GPIO_DeInit(HH_IO_SPI_PORT, HH_IO_SPI_PINS);
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) {
+  if(htim_base->Instance != TIM3) return;
+
+	__HAL_RCC_TIM3_CLK_ENABLE();
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base) {
+  if(htim_base->Instance != TIM3) return;
+
+	__HAL_RCC_TIM3_CLK_DISABLE();
+}
+
+void SysTick_Handler() {
+	HAL_IncTick();
+	if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
+		xPortSysTickHandler();
+}
+
+void HardFault_Handler() {
+	for(;;);
+}
+
+void hh_io_setup_error_handler() {
+	__disable_irq();
+	while (1);
+}
diff --git a/src/stm32/setup.h b/src/stm32/setup.h
new file mode 100644
index 0000000..66d5ff3
--- /dev/null
+++ b/src/stm32/setup.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_tim.h>
+#include <stm32f0xx_hal_gpio.h>
+
+#define HH_IO_SPI_PINS (GPIO_PIN_5 | GPIO_PIN_7)
+#define HH_IO_SPI_PORT GPIOA
+
+extern UART_HandleTypeDef huart2; // NOLINT
+extern GPIO_InitTypeDef spi_gpio; // NOLINT
+extern SPI_HandleTypeDef hspi1; // NOLINT
+extern TIM_HandleTypeDef htim3; // NOLINT
+
+// required HAL setup functions
+void HAL_MspInit(); // NOLINT
+void HAL_UART_MspInit(UART_HandleTypeDef *huart); // NOLINT
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HardFault_Handler(); // NOLINT
+void SysTick_Handler(); // NOLINT
diff --git a/src/stm32/stm32f0xx_hal_conf.h b/src/stm32/stm32f0xx_hal_conf.h
index fc27221..84a3b74 100644
--- a/src/stm32/stm32f0xx_hal_conf.h
+++ b/src/stm32/stm32f0xx_hal_conf.h
@@ -19,16 +19,18 @@
 #define DATA_CACHE_ENABLE 0U
 #define USE_SPI_CRC 0U
 
-#define HAL_RCC_MODULE_ENABLED
 #define HAL_MODULE_ENABLED
-#define HAL_I2C_MODULE_ENABLED
-#define HAL_GPIO_MODULE_ENABLED
-#define HAL_DMA_MODULE_ENABLED
-#define HAL_CORTEX_MODULE_ENABLED
-#define HAL_PWR_MODULE_ENABLED
-#define HAL_FLASH_MODULE_ENABLED
+#define HAL_SPI_MODULE_ENABLED
 #define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_EXTI_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+// #define HAL_I2C_MODULE_ENABLED
 
 #ifdef HAL_RCC_MODULE_ENABLED
 #include <stm32f0xx_hal_rcc.h>