forksand
/
qmk_firmware
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '4b5dcda126'
${ noResults }
qmk_firmware/keyboards/sx60/sx60.c

39 lines
1.2 KiB
Raw Normal View History Unescape

Adding SX60 work by amnobis and configurator settings (#3122) * Add SX60 * Add config maps and layouts as well as readmes. * cleanup and fixes * correct readme * add missing closing commenty tag * Changing includes to QMK_KEYBOARD_H * Update settings.json Remove config change that was added automatically by vscode. * Update readme.md fix readme formatting
8 years ago
#include "sx60.h"
#include "i2cmaster.h"
bool i2c_initialized = 0;
uint8_t mcp23018_status = 0x20;
uint8_t init_mcp23018(void) {
mcp23018_status = 0x20;
/* I2C subsystem */
if (i2c_initialized == 0) {
i2c_init(); // on pins D(1,0)
i2c_initialized = true;
_delay_ms(1000);
}
/* B Pins are Row, A pins are Columns
Set them to output */
mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b11111111); if (mcp23018_status) goto out;
/* Now write to IODIRB */
mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
i2c_stop();
mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b11111111); if (mcp23018_status) goto out;
/* Now write to GPPUB */
mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
out:
i2c_stop();
return mcp23018_status;
}