Hi,
I'm trying to get the external SDRAM on the TWR-K65 working using KDS and PE.
After comparing various register settings in the initialization phase with AN5095SW I realized that I need to change the FB_CSPMCR value to get the SDRAM working.
The generated pin init code for the SDRAM contains a section for setting the FB_CSPMCR but unfortunately the values listed there are leading to a non functional SDRAM.
I can't find a entry in the PE SDRAM component to edit these values.
All I can do is add the FB component and change it there, but this is not what i want.
So my question: How can i control the FB muxing in the SDRAM component in Processor Expert to generate the parameters like described in the code sample below ?
The function in question is init_sdram_pins().
void init_sdram_pins(uint32_t instance)
{
/* Affects PORTD_PCR4 register */
PORT_HAL_SetMuxMode(PORTD,4UL,kPortMuxAlt5);
...
FLEXBUS_HAL_SetMultiplexControlGroup2(FB, kFlexbusMultiplexGroup2_FB_TSIZ0);
FLEXBUS_HAL_SetMultiplexControlGroup3(FB, kFlexbusMultiplexGroup3_FB_TSIZ1);
FLEXBUS_HAL_SetMultiplexControlGroup4(FB, kFlexbusMultiplexGroup4_FB_CS2);
FLEXBUS_HAL_SetMultiplexControlGroup5(FB, kFlexbusMultiplexGroup5_FB_CS3);
...
}
must be changed to
void init_sdram_pins(uint32_t instance)
{
/* Affects PORTD_PCR4 register */
PORT_HAL_SetMuxMode(PORTD,4UL,kPortMuxAlt5);
...
FLEXBUS_HAL_SetMultiplexControlGroup2(FB, kFlexbusMultiplexGroup2_FB_BE_31_24);
FLEXBUS_HAL_SetMultiplexControlGroup3(FB, kFlexbusMultiplexGroup3_FB_BE_23_16);
FLEXBUS_HAL_SetMultiplexControlGroup4(FB, kFlexbusMultiplexGroup4_FB_BE_15_8);
FLEXBUS_HAL_SetMultiplexControlGroup5(FB, kFlexbusMultiplexGroup5_FB_BE_7_0);
...
}
