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Use new ssp_transfer() function instead of ssp_write().

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Implement max2837_spi_read().
This commit is contained in:
Jared Boone
2012-10-13 16:58:22 -07:00
parent 5a428a460f
commit d398cfcc1d
2 changed files with 4 additions and 5 deletions
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7
firmware/common/max2837.c
View File

@ -121,10 +121,9 @@ void max2837_setup(void)
/* SPI register read. */
uint16_t max2837_spi_read(uint8_t r) {
gpio_clear(PORT_XCVR_CS, PIN_XCVR_CS);
// FIXME: Unimplemented.
r=r;
const uint16_t value = ssp_transfer(SSP1_NUM, (uint16_t)((1 << 15) | (r << 10)));
gpio_set(PORT_XCVR_CS, PIN_XCVR_CS);
return 0;
return value & 0x3ff;
}
/* SPI register write */
@ -137,7 +136,7 @@ void max2837_spi_write(uint8_t r, uint16_t v) {
LOG("0x%03x -> reg%d\n", v, r);
#else
gpio_clear(PORT_XCVR_CS, PIN_XCVR_CS);
ssp_write(SSP1_NUM, (uint16_t)((r << 10) | (v & 0x3ff)));
ssp_transfer(SSP1_NUM, (uint16_t)((r << 10) | (v & 0x3ff)));
gpio_set(PORT_XCVR_CS, PIN_XCVR_CS);
#endif
}

2
firmware/common/max5864.c
View File

@ -29,7 +29,7 @@
void max5864_spi_write(uint_fast8_t value) {
gpio_clear(PORT_AD_CS, PIN_AD_CS);
ssp_write(SSP1_NUM, value);
ssp_transfer(SSP1_NUM, value);
gpio_set(PORT_AD_CS, PIN_AD_CS);
}