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atsamd: Implement custom memory allocation functions 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-03-01 11:37:32 -05:00
parent a1d74a08e4
commit 0b33e0b427
2 changed files with 17 additions and 2 deletions
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3
src/atsamd/Makefile
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@ -17,8 +17,7 @@ CFLAGS += $(CFLAGS-y) -D__$(MCU)__ -mthumb -Ilib/cmsis-core
CFLAGS_klipper.elf += -T $(OUT)samd.ld --specs=nano.specs --specs=nosys.specs
# Add source files
src-y += atsamd/main.c atsamd/gpio.c
src-y += generic/crc16_ccitt.c generic/alloc.c generic/armcm_irq.c
src-y += atsamd/main.c atsamd/gpio.c generic/crc16_ccitt.c generic/armcm_irq.c
src-$(CONFIG_USBSERIAL) += atsamd/usbserial.c generic/usb_cdc.c
src-$(CONFIG_SERIAL) += atsamd/serial.c generic/serial_irq.c
src-$(CONFIG_HAVE_GPIO_ADC) += atsamd/adc.c

16
src/atsamd/main.c
View File

@ -10,6 +10,22 @@
DECL_CONSTANT(MCU, CONFIG_MCU);
// Return the start of memory available for dynamic allocations
void *
dynmem_start(void)
{
extern uint32_t _ezero;
return &_ezero;
}
// Return the end of memory available for dynamic allocations
void *
dynmem_end(void)
{
extern uint32_t _sstack;
return &_sstack;
}
void
command_reset(uint32_t *args)
{