hi all
I have a weird operation on the I2C2 in STM32H743ZI cpu
i am sending 2 bytes to a I2c slave PCA9536DP, address= 0x41
the operation works and the slave IC did toggle the outputs BUT
at the end of the I2C2 transfer, the TC bit did not set even though the manual says it should.
is that normal?
see dump of the registers during the operation
OP: operation, CR1: contents of I2C2_CR1, ISR: contents of I2C2_ISR
OP: CR1: ISR: comments
ISR:00020082 00000001 = condition before start of operation and start bit issued
STR:00022082 00008001 = busy bit on after start bit issued
Dta1:00020082 00008003 = first byte send and can send 2nd byte
Dta2:00020082 00008000 = second byte send and tx reg not empty
DtaE:00020082 00008001 = second byte send complete and tx reg empty
STP:00000082 00000031 = stop bit send and detected,
transmission completed; results appeared at the slave ic outputs
BUT TC is still not set and therefore not working at all, since all operation completed, it should have set
what is wrong??
