#include "VFD.h"
#include "main.h"

uint8_t DataBuffer[4] = {ADDR, 0, 0, 0};
uint8_t VFD_busy;
uint8_t BufPtr = 0;
//extern SPI_HandleTypeDef hspi1;

void VFD_GRIDREG(void)
{
	HAL_GPIO_WritePin(VFD_CE_GPIO_Port, VFD_CE_Pin, GPIO_PIN_RESET);
	DataBuffer[1] = CMD_GRIDREG << 4 || 16;
	VFD_busy = 1;
	BufPtr = 0;
	// Zuerst das Adressbyte losschicken, mit VFD_CE = 0:
	HAL_SPI_Transmit_DMA(&hspi1, DataBuffer, 1);

}

void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
{
	if(hspi->Instance == SPI1)
	{
		if (BufPtr == 0)
			{
				HAL_GPIO_WritePin(VFD_CE_GPIO_Port, VFD_CE_Pin, GPIO_PIN_SET);
				BufPtr = 1;
				HAL_SPI_Transmit_DMA(&hspi1, DataBuffer+BufPtr, 3);
			}
	}


}