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Separate send/receive buffers

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This commit is contained in:
UncleRus 2016-03-08 04:00:11 +05:00
parent b5c2120efc
commit 9dc565ff7c
2 changed files with 19 additions and 12 deletions
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5
core/include/esp/spi.h
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@ -183,10 +183,11 @@ uint32_t spi_transfer_32(uint8_t bus, uint32_t data);
/**
* \brief Transfer buffer over SPI
* \param bus Bus ID: 0 - system, 1 - user
* \param data Data to send. Buffer contents will be replaced with received data
* \param out_data Data to send.
* \param in_data Receive buffer. If NULL, received data will be lost.
* \param len Buffer size
*/
void spi_transfer(uint8_t bus, void *data, size_t len);
void spi_transfer(uint8_t bus, const void *out_data, void *in_data, size_t len);
#ifdef __cplusplus
}