Add SPI memset, optional flags
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1fc797132a
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@ -102,7 +102,8 @@ CFLAGS += $(INC) -Werror -Wall -std=gnu11 -fshort-enums $(BASE_CFLAGS) $(C_DEFS)
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# Undo some warnings.
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# STM32 HAL uses undefined preprocessor variables, shadowed variables, casts that change alignment reqs
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CFLAGS += -Wno-undef -Wno-shadow -Wno-cast-align
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# You can add your own temporary suppression by setting ADD_CFLAGS in the make command
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CFLAGS += -Wno-undef -Wno-shadow -Wno-cast-align $(ADD_CFLAGS)
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CFLAGS += -mthumb -mabi=aapcs-linux
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@ -25,6 +25,7 @@
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* THE SOFTWARE.
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*/
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#include <stdbool.h>
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#include <string.h>
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#include "shared-bindings/busio/SPI.h"
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#include "py/mperrno.h"
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@ -340,7 +341,7 @@ bool common_hal_busio_spi_write(busio_spi_obj_t *self,
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if (self->mosi == NULL) {
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mp_raise_ValueError(translate("No MOSI Pin"));
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}
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HAL_StatusTypeDef result = HAL_SPI_Transmit (&self->handle, (uint8_t *)data, (uint16_t)len, HAL_MAX_DELAY);
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HAL_StatusTypeDef result = HAL_SPI_Transmit(&self->handle, (uint8_t *)data, (uint16_t)len, HAL_MAX_DELAY);
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return result == HAL_OK;
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}
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@ -349,7 +350,13 @@ bool common_hal_busio_spi_read(busio_spi_obj_t *self,
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if (self->miso == NULL) {
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mp_raise_ValueError(translate("No MISO Pin"));
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}
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HAL_StatusTypeDef result = HAL_SPI_Receive (&self->handle, data, (uint16_t)len, HAL_MAX_DELAY);
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HAL_StatusTypeDef result = HAL_OK;
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if (self->mosi == NULL) {
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result = HAL_SPI_Receive(&self->handle, data, (uint16_t)len, HAL_MAX_DELAY);
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} else {
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memset(data, write_value, len);
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result = HAL_SPI_TransmitReceive(&self->handle, data, data, (uint16_t)len, HAL_MAX_DELAY);
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}
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return result == HAL_OK;
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}
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@ -358,7 +365,7 @@ bool common_hal_busio_spi_transfer(busio_spi_obj_t *self,
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if (self->miso == NULL || self->mosi == NULL) {
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mp_raise_ValueError(translate("Missing MISO or MOSI Pin"));
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}
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HAL_StatusTypeDef result = HAL_SPI_TransmitReceive (&self->handle,
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HAL_StatusTypeDef result = HAL_SPI_TransmitReceive(&self->handle,
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(uint8_t *) data_out, data_in, (uint16_t)len,HAL_MAX_DELAY);
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return result == HAL_OK;
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}
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