void clear_display(void)
{
// write_vfd_8bit(0);
write_vfd_8bit(0);
write_vfd_8bit(0);
write_vfd_8bit(0);
STROBE_HIGH;
STROBE_LOW;
}
void clear_display(void)
{
write_vfd_8bit(0);
write_vfd_8bit(0);
write_vfd_8bit(0);
write_vfd_8bit(0);
LATCH_DISABLE;
LATCH_ENABLE;
}
// Writes to the HV5812 driver for IV-22
// HV1~4: Digit grids, 4 bits
// HV5~6: NC
// HV7~14: VFD segments, 8 bits
// HV15~20: NC
void write_vfd_iv22(uint8_t digit, uint8_t segments)
{
uint32_t val = (1 << digit) | ((uint32_t)segments << 6);
write_vfd_8bit(0); // unused upper byte: for HV518P only
write_vfd_8bit(val >> 16);
write_vfd_8bit(val >> 8);
write_vfd_8bit(val);
LATCH_DISABLE;
LATCH_ENABLE;
}
// Writes to the HV5812 driver for IV-6
// HV1~10: Digit grids, 10 bits
// HV11~18: VFD segments, 8 bits
// HV19~20: NC
void write_vfd_iv18(uint8_t digit, uint8_t segments)
{
if (dots & (1<<digit))
segments |= (1<<7); // DP is at bit 7
uint32_t val = (1 << digit) | ((uint32_t)segments << 10);
write_vfd_8bit(0); // unused upper byte: for HV518P only
write_vfd_8bit(val >> 16);
write_vfd_8bit(val >> 8);
write_vfd_8bit(val);
LATCH_DISABLE;
LATCH_ENABLE;
}
// Writes to the HV5812 driver for IV-17
// HV1~4: Digit grids, 4 bits
// HV 5~2: VFD segments, 16-bits
void write_vfd_iv17_6d(uint8_t digit, uint16_t segments)
{
uint32_t val = 0;
if (digit == 0) {
EXTRA1_LOW;
EXTRA2_HIGH;
val = ((uint32_t)segments << 4);
}
else if (digit == 5) {
EXTRA1_HIGH;
EXTRA2_LOW;
val = ((uint32_t)segments << 4);
}
else {
EXTRA1_LOW;
EXTRA2_LOW;
val = (1 << (digit-1)) | ((uint32_t)segments << 4);
}
//uint32_t val = (1 << digit) | ((uint32_t)segments << 4);
// write_vfd_8bit(0); // unused upper byte: for HV518P only
write_vfd_8bit(val >> 16);
write_vfd_8bit(val >> 8);
write_vfd_8bit(val);
// STROBE_HIGH; // Strobe high
// STROBE_LOW; // Strobe low
}
// Writes to the HV5812 driver for IV-17
// HV1~4: Digit grids, 4 bits
// HV 5~2: VFD segments, 16-bits
void write_vfd_iv17(uint8_t digit, uint16_t segments)
{
uint32_t val = (1 << digit) | ((uint32_t)segments << 4);
// write_vfd_8bit(0); // unused upper byte: for HV518P only
write_vfd_8bit(val >> 16);
write_vfd_8bit(val >> 8);
write_vfd_8bit(val);
// STROBE_HIGH; // Strobe high
// STROBE_LOW; // Strobe low
}
// Writes to the HV5812 driver for IV-18
// HV1~10: Digit grids, 10 bits
// HV11~18: VFD segments, 8 bits
// HV19~20: NC
void write_vfd_iv18(uint8_t digit, uint8_t segments)
{
if (dots & (1<<digit))
segments |= (1<<7); // DP is at bit 7
uint32_t val = (1 << digit) | ((uint32_t)segments << 10);
// write_vfd_8bit(0); // unused upper byte: for HV518P only
write_vfd_8bit(val >> 16);
write_vfd_8bit(val >> 8);
write_vfd_8bit(val);
// STROBE_HIGH;
// STROBE_LOW;
}
