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This commit is contained in:
Antoine Drouin
2007-10-15 20:35:31 +00:00
parent 6325deb606
commit d62c264c58
1 changed files with 5 additions and 1 deletions
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sw/airborne/arm7/spi_hw.c
+5 -1
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@@ -131,6 +131,10 @@ void SPI1_ISR(void) __attribute__((naked));
#define SSP_MS 0x00 << 2 /* master slave mode : master */
#define SSP_SOD 0x00 << 3 /* slave output disable : don't care when master */
#ifndef SSPCPSR_VAL
#define SSPCPSR_VAL 0x20
#endif
void spi_init( void ) {
/* setup pins for SSP (SCK, MISO, MOSI) */
PINSEL1 |= PINSEL1_SCK | PINSEL1_MISO | PINSEL1_MOSI;
@@ -151,7 +155,7 @@ void spi_init( void ) {
/* setup SSP */
SSPCR0 = SSP_DSS | SSP_FRF | SSP_CPOL | SSP_CPHA | SSP_SCR;
SSPCR1 = SSP_LBM | SSP_MS | SSP_SOD;
SSPCPSR = 0x20; /* Prescaler */
SSPCPSR = SSPCPSR_VAL; /* Prescaler */
/* initialize interrupt vector */
VICIntSelect &= ~VIC_BIT(VIC_SPI1); /* SPI1 selected as IRQ */