Michel2/U8g2_Arduino
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Code Issues Releases Activity

2.7.5

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olikraus
2016-11-28 22:52:52 +01:00
parent 3f0cb88a3c
commit d9ddf8e08c
6 changed files with 80 additions and 10 deletions
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src/U8x8lib.cpp
+72 -3
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@@ -211,8 +211,77 @@ extern "C" uint8_t u8x8_byte_arduino_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uin
switch(msg)
{
case U8X8_MSG_BYTE_SEND:
data = (uint8_t *)arg_ptr;
data = (uint8_t *)arg_ptr;
if ( takeover_edge == 0 )
{
while( arg_int > 0 )
{
b = *data;
data++;
arg_int--;
if ( b == 0 )
{
*arduino_data_port &= arduino_data_n_mask;
for( i = 0; i < 8; i++ )
{
*arduino_clock_port |= arduino_clock_mask;
*arduino_clock_port &= arduino_clock_n_mask;
}
}
else
{
for( i = 0; i < 8; i++ )
{
if ( b & 128 )
*arduino_data_port |= arduino_data_mask;
else
*arduino_data_port &= arduino_data_n_mask;
*arduino_clock_port |= arduino_clock_mask;
b <<= 1;
*arduino_clock_port &= arduino_clock_n_mask;
}
}
}
}
else
{
while( arg_int > 0 )
{
b = *data;
data++;
arg_int--;
if ( b == 0 )
{
*arduino_data_port &= arduino_data_n_mask;
for( i = 0; i < 8; i++ )
{
*arduino_clock_port &= arduino_clock_n_mask;
*arduino_clock_port |= arduino_clock_mask;
}
}
else
{
for( i = 0; i < 8; i++ )
{
if ( b & 128 )
*arduino_data_port |= arduino_data_mask;
else
*arduino_data_port &= arduino_data_n_mask;
*arduino_clock_port &= arduino_clock_n_mask;
b <<= 1;
*arduino_clock_port |= arduino_clock_mask;
}
}
}
}
#ifdef NOTUSED
data = (uint8_t *)arg_ptr;
while( arg_int > 0 )
{
b = *data;
@@ -273,7 +342,7 @@ extern "C" uint8_t u8x8_byte_arduino_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uin
}
}
#endif
break;