electronut

Conway64 conway(&hspi2);

int main(void)
{

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();

electronut

/* StartDefaultTask function */
void StartDefaultTask(void const * argument)
{
	/* USER CODE BEGIN 5 */
	/* Infinite loop */
	for(;;)
	{
		HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);
		osDelay(250);
		HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);

electronut

struct BitBuf88
{
	// constr
	BitBuf88() {
		clearAll();
	}
	// destr
	virtual ~BitBuf88() {}

	// set (i, j)

electronut

// send 16 bit data packet
void MAX7219::sendPacket(MAX7129_REG reg, uint8_t data)
{
	// CS
	HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_RESET);

	//uint16_t packet = (reg << 8) | data;
	uint8_t packet[2];
	packet[0] = reg;
	packet[1] = data;

electronut

class Conway64 {
public:
	Conway64(SPI_HandleTypeDef* hSPI);
	virtual ~Conway64();

	// initialize
	void init();

	// add glider with top left cell at (i, j)
	void addGlider(int i, int j);

electronut

// initialize
void Conway64::init()
{
	// set up display
	_max7219->power(true);
	_max7219->setIntensity(5);
	_max7219->setScanLimit(7);
	_max7219->clear();

	// create Conway task

electronut

// The Conway Task function
void conwayTaskFunc(void const * arg)
{
	// The Joy of C++
	Conway64* conway = const_cast<Conway64*>(static_cast<const Conway64*>(arg));

	// enable for testing only
	//conway->testInit();

	// add a glider object

electronut

void Conway64::signal()
{
	osSignalSet (_conwayTaskHandle, 0x0001);
}

electronut

void Conway64::update()
{
	// From my book Python Playground
	// https://www.nostarch.com/pythonplayground

	// copy grid since we require 8 neighbors for calculation
    // and we go line by line
	BitBuf88 _newGrid = _grid;
	uint8_t N = 8;
	// compute 8-neighbour sum

electronut

# parameters
P = 10
A = 28
B = 8.0/3.0
dt = 0.01
# initial conditions
x = 1.0
y = 1.0
z = 1.0
self.scale = 5