I am uing MQX 3.7
In spi_pol_mcf5xxx_qspi.c function _mcf5xxx_qspi_polled_tx_rx:
/* Setup queue */
tmp = qspi_ptr->QWR & (~ (MCF5XXX_QSPI_QWR_NEWQP(0xF) | MCF5XXX_QSPI_QWR_ENDQP(0xF)));
qspi_ptr->QWR = tmp | MCF5XXX_QSPI_QWR_NEWQP(0) | MCF5XXX_QSPI_QWR_ENDQP(data - 1);
here tmp is defined as uint_8. but QWR is 16 bit register, this will slice off the upper 8 bit. the effect is causing chip-select pins goes low in a very short time (20ns)
Change: define tmp as uinit_16.
Similar problem in spi_int_mcf5xxx_qspi.c _mcf5xxx_qspi_int_isr function:
define reg_tmp as uint_16 instead of uint_8
Regards,
Jeff
