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Feature: transmit_byte for transmitting a single byte

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Feature: `all_on` and `all_off` commands for testing
Optimization: marked functions inline
Optimization: inline function for transmitting a single bit
This commit is contained in:
Derisis13
2022-03-11 08:31:40 +01:00
parent 9a326de094
commit 51921de344
3 changed files with 72 additions and 26 deletions
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53
PT6302.c
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@@ -34,6 +34,30 @@ inline void PT6302_startup (void)
_delay_us (TWRSTB);
}
inline void transmit_bit(const uint8_t data)
{
PORTB &= ~CLKBpin;
if ((data & 0x01) == 0)
PORTB &= ~DINpin;
else
PORTB |= DINpin;
_delay_us (TCW);
PORTB |= CLKBpin;
_delay_us (TCW);
}
void transmit_byte (uint8_t data)
{
_delay_us (1);
PORTB &= ~CSBpin;
for (int j = 0; j < 8; ++j, data = (data >> 1))
{
transmit_bit (data);
}
_delay_us (TCSH);
PORTB |= CSBpin;
}
void transmit_bytes (const uint8_t *payload, const uint8_t size)
{
_delay_us (1);
@@ -43,14 +67,7 @@ void transmit_bytes (const uint8_t *payload, const uint8_t size)
uint8_t data = payload[i];
for (int j = 0; j < 8; ++j, data = (data >> 1))
{
PORTB &= ~CLKBpin;
if ((data & 0x01) == 0)
PORTB &= ~DINpin;
else
PORTB |= DINpin;
_delay_us (TCW);
PORTB |= CLKBpin;
_delay_us (TCW);
transmit_bit (data);
}
_delay_us (TDOFF);
}
@@ -65,7 +82,7 @@ void set_ports (uint8_t gp1, uint8_t gp2)
command |= 0x01;
if (gp2 != 0)
command |= 0x02;
transmit_bytes (&command, 1);
transmit_byte (command);
}
void set_duty (uint8_t brightness)
@@ -75,7 +92,7 @@ void set_duty (uint8_t brightness)
brightness = 7;
}
const uint8_t command = 0x50 | brightness;
transmit_bytes (&command, 1);
transmit_byte (command);
}
void set_digits (uint8_t digit_count)
@@ -86,7 +103,7 @@ void set_digits (uint8_t digit_count)
digit_count = 9;
digit_count -= 8;
const uint8_t command = 0x60 | digit_count;
transmit_bytes (&command, 1);
transmit_byte (command);
}
void set_ADRAM (const uint8_t address, const uint8_t *data, uint8_t size)
@@ -119,7 +136,6 @@ void set_CGRAM (const uint8_t address, const uint8_t *data, uint8_t size)
}
transmit_bytes (payload, size);
}
void set_DCRAM (const uint8_t address, const uint8_t *cg_address, uint8_t size)
{
if (address > DISPLAY_DIGITS)
@@ -133,4 +149,15 @@ void set_DCRAM (const uint8_t address, const uint8_t *cg_address, uint8_t size)
payload[i] = cg_address[i - 1];
}
transmit_bytes (payload, size);
}
}
void all_on (void)
{
const uint8_t command = 0x72;
transmit_byte (command);
}
void all_off (void)
{
const uint8_t command = 0x71;
transmit_byte (command);
}