Posted on October 06, 2017 at 01:03I'm also having issues using this library. I have tried to set it up similarly to the example in the STM32F072B-Discovery project in the x-cube-smbus Projects but I can't get anything out of the system.
Here is my initialization code:
/* USER CODE BEGIN 2 */
//HAL_SMBUS_EnableListen_IT(&hsmbus1);
hsmbus1.pBuffPtr = context.Buffer;
context.CMD_table = COMMANDS_TAB;
context.CMD_tableSize = 2; //COMMANDS_TAB_SIZE;
context.Device = &hsmbus1;
context.SRByte = 0x55;
context.CurrentCommand = NULL;
context.StateMachine = SMBUS_SMS_ARP_AR;
context.OwnAddress = 0x10;
STACK_SMBUS_Init(&context);
piobuf = STACK_SMBUS_GetBuffer( &context );
if (piobuf != NULL )
{
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, 1);
for (int index = 0; index < STACK_NBYTE_SIZE; index++)
{
piobuf[index] = 0;
}
}
But I get nothing when I try to do an SMBUS read with command. I see the address phase go out on the smbus, but the device never gets the command byte, I think the device may be stretching the clock during the ACK phase and never acking.
Are there any simple examples on how to get this library working? With just a few simple commands implemented, as an SMBUS Slave?
Thanks!
Mike
