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Merge pull request #3519 from jflyper/bfdev-oled-use-send_cmdarray 

OLED display convert consecutive calls to `i2c_OLED_send_cmd` to array of commands
This commit is contained in:
Martin Budden 2017-07-15 09:21:28 +01:00 committed by GitHub
parent 5ddbab75ee d8110ec3d3
commit d68b8fae9a
1 changed files with 80 additions and 50 deletions
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130
src/main/drivers/display_ug2864hsweg01.c
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@ -20,6 +20,8 @@
#include "platform.h"
#include "common/utils.h"
#include "drivers/bus_i2c.h"
#include "display_ug2864hsweg01.h"
@ -181,52 +183,75 @@ static bool i2c_OLED_send_cmd(busDevice_t *bus, uint8_t command)
return i2cWrite(bus->i2c.device, bus->i2c.address, 0x80, command);
}
static bool i2c_OLED_send_cmdarray(busDevice_t *bus, const uint8_t *commands, size_t len)
{
for (size_t i = 0 ; i < len ; i++) {
if (i2c_OLED_send_cmd(bus, commands[i])) {
// XXX Funny, i2cWrite is returning errors!?
// return;
}
}
return true;
}
static bool i2c_OLED_send_byte(busDevice_t *bus, uint8_t val)
{
return i2cWrite(bus->i2c.device, bus->i2c.address, 0x40, val);
}
void i2c_OLED_clear_display(busDevice_t *bus)
{
i2c_OLED_send_cmd(bus, 0xa6); // Set Normal Display
i2c_OLED_send_cmd(bus, 0xae); // Display OFF
i2c_OLED_send_cmd(bus, 0x20); // Set Memory Addressing Mode
i2c_OLED_send_cmd(bus, 0x00); // Set Memory Addressing Mode to Horizontal addressing mode
i2c_OLED_send_cmd(bus, 0xb0); // set page address to 0
i2c_OLED_send_cmd(bus, 0x40); // Display start line register to 0
i2c_OLED_send_cmd(bus, 0); // Set low col address to 0
i2c_OLED_send_cmd(bus, 0x10); // Set high col address to 0
for (uint16_t i = 0; i < 1024; i++) { // fill the display's RAM with graphic... 128*64 pixel picture
i2c_OLED_send_byte(bus, 0x00); // clear
}
i2c_OLED_send_cmd(bus, 0x81); // Setup CONTRAST CONTROL, following byte is the contrast Value... always a 2 byte instruction
i2c_OLED_send_cmd(bus, 200); // Here you can set the brightness 1 = dull, 255 is very bright
i2c_OLED_send_cmd(bus, 0xaf); // display on
}
void i2c_OLED_clear_display_quick(busDevice_t *bus)
{
i2c_OLED_send_cmd(bus, 0xb0); // set page address to 0
i2c_OLED_send_cmd(bus, 0x40); // Display start line register to 0
i2c_OLED_send_cmd(bus, 0); // Set low col address to 0
i2c_OLED_send_cmd(bus, 0x10); // Set high col address to 0
static const uint8_t i2c_OLED_cmd_clear_display_quick[] = {
0xb0, // set page address to 0
0x40, // Display start line register to 0
0, // Set low col address to 0
0x10, // Set high col address to 0
};
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_quick, ARRAYLEN(i2c_OLED_cmd_clear_display_quick));
for (uint16_t i = 0; i < 1024; i++) { // fill the display's RAM with graphic... 128*64 pixel picture
i2c_OLED_send_byte(bus, 0x00); // clear
}
}
void i2c_OLED_clear_display(busDevice_t *bus)
{
static const uint8_t i2c_OLED_cmd_clear_display_pre[] = {
0xa6, // Set Normal Display
0xae, // Display OFF
0x20, // Set Memory Addressing Mode
0x00, // Set Memory Addressing Mode to Horizontal addressing mode
};
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_pre, ARRAYLEN(i2c_OLED_cmd_clear_display_pre));
i2c_OLED_clear_display_quick(bus);
static const uint8_t i2c_OLED_cmd_clear_display_post[] = {
0x81, // Setup CONTRAST CONTROL, following byte is the contrast Value... always a 2 byte instruction
200, // Here you can set the brightness 1 = dull, 255 is very bright
0xaf, // display on
};
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_post, ARRAYLEN(i2c_OLED_cmd_clear_display_post));
}
void i2c_OLED_set_xy(busDevice_t *bus, uint8_t col, uint8_t row)
{
i2c_OLED_send_cmd(bus, 0xb0 + row); //set page address
i2c_OLED_send_cmd(bus, 0x00 + ((CHARACTER_WIDTH_TOTAL * col) & 0x0f)); //set low col address
i2c_OLED_send_cmd(bus, 0x10 + (((CHARACTER_WIDTH_TOTAL * col) >> 4) & 0x0f)); //set high col address
uint8_t i2c_OLED_cmd_set_xy[] = {
0xb0 + row, //set page address
0x00 + ((CHARACTER_WIDTH_TOTAL * col) & 0x0f), //set low col address
0x10 + (((CHARACTER_WIDTH_TOTAL * col) >> 4) & 0x0f) //set high col address
};
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_set_xy, ARRAYLEN(i2c_OLED_cmd_set_xy));
}
void i2c_OLED_set_line(busDevice_t *bus, uint8_t row)
{
i2c_OLED_send_cmd(bus, 0xb0 + row); //set page address
i2c_OLED_send_cmd(bus, 0); //set low col address
i2c_OLED_send_cmd(bus, 0x10); //set high col address
i2c_OLED_set_xy(bus, 0, row);
}
void i2c_OLED_send_char(busDevice_t *bus, unsigned char ascii)
@ -253,6 +278,7 @@ void i2c_OLED_send_string(busDevice_t *bus, const char *string)
/**
* according to http://www.adafruit.com/datasheets/UG-2864HSWEG01.pdf Chapter 4.4 Page 15
*/
bool ug2864hsweg01InitI2C(busDevice_t *bus)
{
@ -261,28 +287,32 @@ bool ug2864hsweg01InitI2C(busDevice_t *bus)
return false;
}
i2c_OLED_send_cmd(bus, 0xD4); // Set Display Clock Divide Ratio / OSC Frequency
i2c_OLED_send_cmd(bus, 0x80); // Display Clock Divide Ratio / OSC Frequency
i2c_OLED_send_cmd(bus, 0xA8); // Set Multiplex Ratio
i2c_OLED_send_cmd(bus, 0x3F); // Multiplex Ratio for 128x64 (64-1)
i2c_OLED_send_cmd(bus, 0xD3); // Set Display Offset
i2c_OLED_send_cmd(bus, 0x00); // Display Offset
i2c_OLED_send_cmd(bus, 0x40); // Set Display Start Line
i2c_OLED_send_cmd(bus, 0x8D); // Set Charge Pump
i2c_OLED_send_cmd(bus, 0x14); // Charge Pump (0x10 External, 0x14 Internal DC/DC)
i2c_OLED_send_cmd(bus, 0xA1); // Set Segment Re-Map
i2c_OLED_send_cmd(bus, 0xC8); // Set Com Output Scan Direction
i2c_OLED_send_cmd(bus, 0xDA); // Set COM Hardware Configuration
i2c_OLED_send_cmd(bus, 0x12); // COM Hardware Configuration
i2c_OLED_send_cmd(bus, 0x81); // Set Contrast
i2c_OLED_send_cmd(bus, 0xCF); // Contrast
i2c_OLED_send_cmd(bus, 0xD9); // Set Pre-Charge Period
i2c_OLED_send_cmd(bus, 0xF1); // Set Pre-Charge Period (0x22 External, 0xF1 Internal)
i2c_OLED_send_cmd(bus, 0xDB); // Set VCOMH Deselect Level
i2c_OLED_send_cmd(bus, 0x40); // VCOMH Deselect Level
i2c_OLED_send_cmd(bus, 0xA4); // Set all pixels OFF
i2c_OLED_send_cmd(bus, 0xA6); // Set display not inverted
i2c_OLED_send_cmd(bus, 0xAF); // Set display On
static const uint8_t i2c_OLED_cmd_init[] = {
0xD4, // Set Display Clock Divide Ratio / OSC Frequency
0x80, // Display Clock Divide Ratio / OSC Frequency
0xA8, // Set Multiplex Ratio
0x3F, // Multiplex Ratio for 128x64 (64-1)
0xD3, // Set Display Offset
0x00, // Display Offset
0x40, // Set Display Start Line
0x8D, // Set Charge Pump
0x14, // Charge Pump (0x10 External, 0x14 Internal DC/DC)
0xA1, // Set Segment Re-Map
0xC8, // Set Com Output Scan Direction
0xDA, // Set COM Hardware Configuration
0x12, // COM Hardware Configuration
0x81, // Set Contrast
0xCF, // Contrast
0xD9, // Set Pre-Charge Period
0xF1, // Set Pre-Charge Period (0x22 External, 0xF1 Internal)
0xDB, // Set VCOMH Deselect Level
0x40, // VCOMH Deselect Level
0xA4, // Set all pixels OFF
0xA6, // Set display not inverted
0xAF, // Set display On
};
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_init, ARRAYLEN(i2c_OLED_cmd_init));
i2c_OLED_clear_display(bus);