ld: arch/libarch.a(cxd56_allocateheap.c.obj): in function `up_allocate_heap':
arch/arm/src/cxd56xx/cxd56_allocateheap.c:113: multiple definition of `up_allocate_heap'; arch/libarch.a(arm_allocateheap.c.obj):
arch/arm/src/common/arm_allocateheap.c:110: first defined here
Signed-off-by: chao.an <anchao@xiaomi.com>
arch/arm/src/common/arm_hostfs.c: In function 'host_read':
arch/arm/src/common/arm_hostfs.c:156:24:
warning: passing argument 1 of 'up_invalidate_dcache' makes integer from pointer without a cast [-Wint-conversion]
156 | up_invalidate_dcache(buf, buf + count);
| ^~~
| |
| void *
In file included from arch/arm/src/common/arm_hostfs.c:26:
include/nuttx/cache.h:261:37: note: expected 'uintptr_t' {aka 'unsigned int'} but argument is of type 'void *'
261 | void up_invalidate_dcache(uintptr_t start, uintptr_t end);
| ~~~~~~~~~~^~~~~
Signed-off-by: chao.an <anchao@xiaomi.com>
This commit adds RX DMA support to serial driver. The DMA is currently
supported only for USART peripherals, not for UART. It uses two circular
buffers which size can be setup by SAMV7_SERIAL_RXDMA_BUFFER option.
The idle bus interrupt is enabled to ensures data are read even if the
buffer is not yet full. The timeout can be setup by
SAMV7_SERIAL_DMA_TIMEOUT option.
This adds support only for RX transfers.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit adds functions sam_dmarxsetup_circular() and
sam_dmarxstart_circular() that create API for operating with two or more
circular buffers. This can be used for DMA operation with serial driver
or ADC where ping pong buffers are required to successfully transfer the
data at high speed.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit enhances SAMV7 serial driver with RS-485 mode available to
USART peripherals. The hardware automatically sets RTS pin high when
data are transfered and low then no transfer occurs. Only USART peripherals
support this mode, UART peripherals do not.
This mode can be enabled by configuration option SAMV7_USARTx_RS485MODE.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
