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This commit is contained in:
Gee Bartlett 2022-10-10 14:12:45 +01:00
parent 2f7afad12d
commit 337cd390d4
2 changed files with 53 additions and 4 deletions
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53
drivers/st7567/st7567.cpp
View File

@ -6,6 +6,17 @@
#include "hardware/dma.h"
#include "hardware/pwm.h"
#define BYTE_TO_BINARY_PATTERN "%c%c%c%c%c%c%c%c"
#define BYTE_TO_BINARY(byte) \
(byte & 0x80 ? '1' : '0'), \
(byte & 0x40 ? '1' : '0'), \
(byte & 0x20 ? '1' : '0'), \
(byte & 0x10 ? '1' : '0'), \
(byte & 0x08 ? '1' : '0'), \
(byte & 0x04 ? '1' : '0'), \
(byte & 0x02 ? '1' : '0'), \
(byte & 0x01 ? '1' : '0')
namespace pimoroni {
enum reg : uint8_t {
@ -130,6 +141,42 @@ namespace pimoroni {
void ST7567::update(PicoGraphics *graphics) {
uint8_t *fb = (uint8_t *)graphics->frame_buffer;
uint8_t *page_p = (uint8_t *)graphics->frame_buffer;
uint8_t *byte_p = page_p;
uint8_t page_buffer[128];
for (int i=0 ; i < 128 ; i++){
page_buffer[i] = i;
}
uint8_t col_byte = 0;
/*
1111111111
0000000000
1111111111
0000000000
to
1010101010
1010101010
1010101010
1010101010
*/
//0b00000011 = 0b000000001 0b00000001
/*
for (uint8_t pb_col_byte_index=0; pb_col_byte_index < 128; pb_col_byte_index++ ){
for (uint8_t fb_row_bit_index=0; fb_row_bit_index < 8; fb_row_bit_index++ ){
byte_p = byte_p + ((16 * fb_row_bit_index) + (pb_col_byte_index / 8));
page_buffer[pb_col_byte_index] = (*byte_p) & (1 << fb_row_bit_index);
}
}
*/
if(graphics->pen_type == PicoGraphics::PEN_1BIT) {
@ -140,14 +187,16 @@ namespace pimoroni {
command(reg::SETCOLH);
gpio_put(dc, 1); // data mode
gpio_put(cs, 0);
spi_write_blocking(spi, fb, PAGESIZE/8 );
spi_write_blocking(spi, &page_buffer[0], PAGESIZE );
fb += (PAGESIZE);
gpio_put(cs, 1);
gpio_put(dc, 0); // Back to command mode
}
} /*else {
}
/*else {
command(reg::ENTER_RMWMODE);
gpio_put(dc, 1); // data mode
gpio_put(cs, 0);

4
drivers/st7567/st7567.hpp
View File

@ -13,8 +13,8 @@ namespace pimoroni {
// Constants
//--------------------------------------------------
private:
static const uint8_t ROWS = 128;
static const uint8_t COLS = 64;
static const uint8_t ROWS = 64;
static const uint8_t COLS = 128;
static const uint8_t PAGESIZE = 128;
//--------------------------------------------------