Hi to all.
I’m looking for the help with any tip or documentation or direction where to dig with tinyclr startup execution. I was able to enable SDRAM on 32F429IDISCO, at least seems as it.
With original memory allocation in scatter file, firmware compiling and works fine:
<Set Name="Stack_Bottom" Value="0x10000000"/>
<Set Name="Stack_Top" Value="0x10003FF8"/>
<Set Name="RAM_Start" Value="0x10004000"/>
<Set Name="Heap_Begin" Value="0xD0010000"/>
<Set Name="Heap_End" Value="0xD0017FF8"/>
<Set Name="Custom_Heap_Begin" Value="0xD0018000"/>
<Set Name="Custom_Heap_End" Value="0xD001FFF8"/>
<Set Name="Stack_Bottom" Value="0x10000000"/>
<Set Name="Stack_Top" Value="0x10003FF8"/>
<Set Name="RAM_Start" Value="0x10004000"/>
<Set Name="Heap_Begin" Value="0x20000000"/>
<Set Name="Heap_End" Value="0x2001DFF8"/>
<Set Name="Custom_Heap_Begin" Value="0x2001FE00"/>
<Set Name="Custom_Heap_End" Value="0x2001FFF8"/>
But when i replacing with :
<Set Name="Stack_Bottom" Value="0x10000000"/>
<Set Name="Stack_Top" Value="0x10003FF8"/>
<Set Name="RAM_Start" Value="0x10004000"/>
<Set Name="Heap_Begin" Value="0xD0010000"/>
<Set Name="Heap_End" Value="0xD0017FF8"/>
<Set Name="Custom_Heap_Begin" Value="0xD0018000"/>
<Set Name="Custom_Heap_End" Value="0xD001FFF8"/>
and
<Set Name="Stack_Bottom" Value="0x10000000"/>
<Set Name="Stack_Top" Value="0x10003FF8"/>
<Set Name="RAM_Start" Value="0x10004000"/>
<Set Name="Heap_Begin" Value="0xD0000000"/>
<Set Name="Heap_End" Value="0xD001DFF8"/>
<Set Name="Custom_Heap_Begin" Value="0xD001FE00"/>
<Set Name="Custom_Heap_End" Value="0xD001FFF8"/>
tinybooter is booting up. But when deploying NETMF after delay of 10-15 seconds windows showing up not recognized usb HID device.
In IO_Init.cpp file, after SDRAM initialization, i’m running memory tests, and seems that SDRAM is accessible.
Just in case SDRAM pinout assignment.
]+-------------------+--------------------+--------------------+--------------------+
+ SDRAM pins assignment +
+-------------------+--------------------+--------------------+--------------------+
| PD0 <-> FMC_D2 | PE0 <-> FMC_NBL0 | PF0 <-> FMC_A0 | PG0 <-> FMC_A10 |
| PD1 <-> FMC_D3 | PE1 <-> FMC_NBL1 | PF1 <-> FMC_A1 | PG1 <-> FMC_A11 |
| PD8 <-> FMC_D13 | PE7 <-> FMC_D4 | PF2 <-> FMC_A2 | PG8 <-> FMC_SDCLK |
| PD9 <-> FMC_D14 | PE8 <-> FMC_D5 | PF3 <-> FMC_A3 | PG15 <-> FMC_NCAS |
| PD10 <-> FMC_D15 | PE9 <-> FMC_D6 | PF4 <-> FMC_A4 |--------------------+
| PD14 <-> FMC_D0 | PE10 <-> FMC_D7 | PF5 <-> FMC_A5 |
| PD15 <-> FMC_D1 | PE11 <-> FMC_D8 | PF11 <-> FMC_NRAS |
+-------------------| PE12 <-> FMC_D9 | PF12 <-> FMC_A6 |
| PE13 <-> FMC_D10 | PF13 <-> FMC_A7 |
| PE14 <-> FMC_D11 | PF14 <-> FMC_A8 |
| PE15 <-> FMC_D12 | PF15 <-> FMC_A9 |
+-------------------+--------------------+--------------------+
| PB5 <-> FMC_SDCKE1|
| PB6 <-> FMC_SDNE1 |
| PC0 <-> FMC_SDNWE |
+-------------------+
Any help is appreciated.