rusefi
/
ChibiOS
mirror of https://github.com/rusefi/ChibiOS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Changed SPI's frequency 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11518 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
edolomb 2018-02-20 10:04:59 +00:00
parent 69076b40bd
commit 6497cd272a
1 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
testhal/ATSAMA5D2/FLEX-SPI/main.c
View File

@ -23,17 +23,17 @@ static uint8_t txbuf[BUFFER_SIZE];
static uint8_t rxbuf[BUFFER_SIZE];
/*
* SPI high speed configuration (83MHz (MCK/3/2), CPHA=0, CPOL=0, MSb first).
* SPI high speed configuration (peripheral clock / 3 = 27,6 Mhz, CPHA=0, CPOL=0, MSb first).
*/
static const SPIConfig hs_spicfg = {
NULL, /* callback if present */
0, /* cs pad number */
SPI_MR_MODFDIS | SPI_MR_LLB, /* mr register */
SPI_CSR_SCBR(1) /* csr */
SPI_CSR_SCBR(3) /* csr */
};
/*
* SPI low speed configuration (83MHz / 166 = 500KHz, CPHA=0, CPOL=0, MSb first).
* SPI low speed configuration (peripheral clock / 166 = 500KHz, CPHA=0, CPOL=0, MSb first).
*/
static const SPIConfig ls_spicfg = {
NULL, /* callback if present */
@ -55,11 +55,9 @@ static THD_FUNCTION(spi_thread_1, p) {
spiAcquireBus(&FSPID2); /* Acquire ownership of the bus. */
palClearLine(LINE_LED_RED); /* LED ON. */
spiStart(&FSPID2, &hs_spicfg); /* Setup transfer parameters. */
spiSelect(&FSPID2);
spiExchange(&FSPID2, BUFFER_SIZE,
txbuf, rxbuf); /* Atomic transfer operations. */
cacheInvalidateRegion(&rxbuf, sizeof(rxbuf));
spiUnselect(&FSPID2);
spiReleaseBus(&FSPID2); /* Ownership release. */
}
}
@ -77,11 +75,9 @@ static THD_FUNCTION(spi_thread_2, p) {
spiAcquireBus(&FSPID2); /* Acquire ownership of the bus. */
palSetLine(LINE_LED_RED); /* LED OFF. */
spiStart(&FSPID2, &ls_spicfg); /* Setup transfer parameters. */
spiSelect(&FSPID2);
spiExchange(&FSPID2, 512,
txbuf, rxbuf); /* Atomic transfer operations. */
cacheInvalidateRegion(&rxbuf, sizeof(rxbuf));
spiUnselect(&FSPID2);
spiReleaseBus(&FSPID2); /* Ownership release. */
}
}