Hi!
Now, I meet a strange question on stm32 platform. If i set
CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE to 256 for stm32 spi driver, bin
format image converted from elf format image is abnormal, its size become to
4KB. But i set CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE to 0, bin format
image is normal and run OK.
By reading spi_stm32.c, i find the following code:
#if (CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE > 0)
static cyg_uint8 bus1_tx_bbuf [CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE]
__attribute__((aligned (2), section (".sram"))) = { 0 };
static cyg_uint8 bus1_rx_bbuf [CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE]
__attribute__((aligned (2), section (".sram"))) = { 0 };
#endif
I think that the code cause that can't convert the elf format image to bin
format image normally. But why? and How to solve???
thinks!
reille
