I use flexio_iic to read the eeprom. and I found a issue when the reading length is over 13 using flexio_i2c.
I traced the code. i found there's a overflow in function <FLEXIO_I2C_DRV_MasterSetBytesNo>.
static void FLEXIO_I2C_DRV_MasterSetBytesNo(FLEXIO_Type *baseAddr, const flexio_i2c_master_state_t *master)
1 uint16_t timerCmp;
2 uint32_t bytesNo;
3 uint8_t resourceIndex; /* Index of first used internal resource instance (shifter and timer) */
4 resourceIndex = master->flexioCommon.resourceIndex;
5 /* Compute number of SCL ticks, including address */
6 bytesNo = master->txRemainingBytes;
7 bytesNo = (bytesNo * 18U) + 1U;
8 /* Set number of ticks in low part of timer compare register */
9 timerCmp = FLEXIO_HAL_GetTimerCompare(baseAddr, SCL_TIMER(resourceIndex));
10 timerCmp = (uint16_t)((timerCmp & 0x00FFU) | (uint16_t)((bytesNo & 0xFFU) << 8U));
11 FLEXIO_HAL_SetTimerCompare(baseAddr, SCL_TIMER(resourceIndex), timerCmp);
According to the reading length 14, the master->txRemainingBytes is 15 and we can calculate the final bytesNo 0x10f(271).But after excute the line 10, we can see the higher 8 bits of bytesNo is ignored.And it leads to a error execution.
So how can i read bytes over 13?