Portwell RUBY-D812-Q470E, Руководство пользователя

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RUBY-D812-Q470E
Copyright © Portwell 2021 RUBY-D812-Q470E User's Guide 33
Status = Inportb(SMBU 0x00); // Get SMBus Status
while (!(Status & 0x8E)) { // Wait for SMBus finished command
MicroSecondDelay(10);
Status = Inportb(SMBU 0x00);
}
val = Inportb(SMBU 0x05); // Get SMBus Data
val = val | (0x01 << GPIOn); // GPI, val = val | ~(0x01 << GPIOn) if GPO, GPIOn is value 0 to 7
Status = Inportb(SMBU 0x00);
Outportb(SMBU 0x00, Status); // SMBus Clear Status
Outportb(SMBU 0x02, 0x08); // Set SMBus CMD to Byte Data
Outportb(SMBU 0x04, 0x40); // Set SMBus Slave Address to 0x40 and excute Write flow
Outportb(SMBU 0x03, 0x00); // Set SMBus Reg
Outportb(SMBU 0x05, val); // Set SMBus Data
val = Inportb(SMBU 0x02);
val = val | 0x40;
Outportb(SMBU 0x02, val); // Excute SMBus Command
Status = Inportb(SMBU 0x00); // Get SMBus Status
while (!(Status & 0x8E)) { // Wait for SMBus finished command