Hi there, i would like to propse a change to the I2C libraies which seem to be working fine in their original form.
The changes are relatively simple.
The first is the data payload for i2C transmissions is currently defined as char. I propose that these be changed to unsigned char to more accurately refelct the data type.
this will make a big difference to software that already exists that uses I2C as almost all users will have these higher level functions defined as unsigned char.
The second is the I2C should return from the function with a value that determines weather the transfer has been sucessful or not. A suceesfull return should return with Ack and a failure should return with Nack. Currently, failed packets result in the message...
i2C Start W returned incorrect status (0x20) in I2C write::Abnormal termination.
Can we have these changed for the actual release?
At hitex i have spend the past 3 days converting some RS-EDP software to run with the MBED module and the process has been very easy. consequently we have a lot of software now available to run on this platfom. This includes serial latches, digital I/O expanders, serial EEPROM, serial ADC conveters, motor drive modules, UARTs SPI etc. The RS-EDP is a processor independant platform we developed for the RS catalogue, which will now have an mbed adapter module for it. Consequently we will have a ready to go board support platform for the mbed to plug into. The RS-EDP unit can be viewed on the RS web site, for those of you interested.
Best Regards
David Giles
Simon Ford.
1 reply
Hi there, i would like to propse a change to the I2C libraies which seem to be working fine in their original form.
The changes are relatively simple.
The first is the data payload for i2C transmissions is currently defined as char. I propose that these be changed to unsigned char to more accurately refelct the data type.
this will make a big difference to software that already exists that uses I2C as almost all users will have these higher level functions defined as unsigned char.
The second is the I2C should return from the function with a value that determines weather the transfer has been sucessful or not. A suceesfull return should return with Ack and a failure should return with Nack. Currently, failed packets result in the message...
i2C Start W returned incorrect status (0x20) in I2C write::Abnormal termination.
Can we have these changed for the actual release?
At hitex i have spend the past 3 days converting some RS-EDP software to run with the MBED module and the process has been very easy. consequently we have a lot of software now available to run on this platfom. This includes serial latches, digital I/O expanders, serial EEPROM, serial ADC conveters, motor drive modules, UARTs SPI etc. The RS-EDP is a processor independant platform we developed for the RS catalogue, which will now have an mbed adapter module for it. Consequently we will have a ready to go board support platform for the mbed to plug into. The RS-EDP unit can be viewed on the RS web site, for those of you interested.
Best Regards
David Giles