Include errors with ATTINY3227

[platformio]

Include errors with ATTINY3227

[Optoneer]

Today I see after opening the project, that it is unable to resolve the configuration for avr-gcc.exe and it would use a MinGW-gcc.exe. This does not pop up when opening the attiny1626 project.

What I continued to try - without success:

• I removed the .platformio folder in order to get a fresh installation.
• I checked, that the latest DFP is in .platformio\packages\toolchain-atmelavr\avr\include\avr\iotn3227.h
• I changed the target to 3217 in the platformio.ini and this compiles just fine

Any ideas?

[Optoneer]

Got it. Platformio does not include the necessary include files. If anyone faces this issue, too:

1. Download DFP (Device Family Pack) from Atmel Homepage (Rename to *.zip and extract somewhere)
2. Ensure that <USER>\.platformio\packages\toolchain-atmelavr\avr\include\avr\io.h contains the #include for the correct header file.

#elif defined (__AVR_ATtiny3227__)
#  include <avr/iotn3227.h>

3. header file
   • Copy <DFP-pack>\include\avr\iotn3227.h to
   • <USER>\.platformio\packages\toolchain-atmelavr\avr\include\avr\iotn3227.h
4. archive file .a and startup file crt.o
   • Copy <DFP-pack>\gcc\dev\attiny3227\avrxmega3\libattiny3227.a and crtattiny3227.o to
   • <USER>\.platformio\packages\toolchain-atmelavr\avr\lib\
5. specs file
   • Copy <DFP-pack>\gcc\dev\attiny3227\device-specs\specs-attiny3227 to
   • <USER>\.platformio\packages\toolchain-atmelavr\lib\gcc\avr\7.3.0\device-specs\

It starts to compile, but I get a compile error. I think, it is because it is not well tested and the vendor Microchip has not yet completely updated their include files, i.e. using the same names everywhere ...

My issue was with the CLK-Sel. I changed the device header file <USER>\.platformio\packages\toolchain-atmelavr\avr\include\avr\iotn3227.h like this:

/* Clock Select */
typedef enum TCB_CLKSEL_enum
{
    TCB_CLKSEL_DIV1_gc = (0x00<<1),  /* CLK_PER */
    TCB_CLKSEL_DIV2_gc = (0x01<<1),  /* CLK_PER/2 */
    TCB_CLKSEL_TCA0_gc = (0x02<<1),  /* Use CLK_TCA from TCA0 */
    TCB_CLKSEL_EVENT_gc = (0x07<<1)  /* Count on event edge */
} TCB_CLKSEL_t;

changed to

/* Clock Select */
typedef enum TCB_CLKSEL_enum
{
    TCB_CLKSEL_CLKDIV1_gc = (0x00<<1),  /* CLK_PER */
    TCB_CLKSEL_CLKDIV2_gc = (0x01<<1),  /* CLK_PER/2 */
    TCB_CLKSEL_CLKTCA0_gc = (0x02<<1),  /* Use CLK_TCA from TCA0 */
    TCB_CLKSEL_EVENT_gc = (0x07<<1)  /* Count on event edge */
} TCB_CLKSEL_t;

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