altos: Reduce MS5607 reset delay, increase conversion delay

Reset doesn't take very long, while doing a conversion seems to take
more than 10ms.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/drivers/ao_ms5607.c b/src/drivers/ao_ms5607.c
index 51922dc7f4e29179c2dd488df003cffcb6e5033e..877482724742d2d83845112adfba7ab9e7195f1c 100644 (file)
--- a/src/drivers/ao_ms5607.c
+++ b/src/drivers/ao_ms5607.c
@@ -18,11 +18,6 @@
 #include <ao.h>
 #include "ao_ms5607.h"
 
-#define AO_MS5607_CS_GPIO      stm_gpioc
-#define AO_MS5607_CS           4
-#define AO_MS5607_CS_MASK      (1 << AO_MS5607_CS)
-#define AO_MS5607_SPI_INDEX    (STM_SPI_INDEX(1))
-
 struct ms5607_prom {
        uint16_t        reserved;
        uint16_t        sens;
@@ -55,7 +50,7 @@ ao_ms5607_reset(void) {
        cmd = AO_MS5607_RESET;
        ao_ms5607_start();
        ao_spi_send(&cmd, 1, AO_MS5607_SPI_INDEX);
-       ao_delay(AO_MS_TO_TICKS(100));
+       ao_delay(AO_MS_TO_TICKS(10));
        ao_ms5607_stop();
 }
 
@@ -70,28 +65,27 @@ ao_ms5607_prom_read(uint8_t addr)
        ao_spi_send(&cmd, 1, AO_MS5607_SPI_INDEX);
        ao_spi_recv(d, 2, AO_MS5607_SPI_INDEX);
        ao_ms5607_stop();
-       v = ((uint16_t) d[0] << 8) | (uint16_t) d[1];
-//     printf ("ms5607_prom_read recv %02x %02x -> %04x\n", d[0], d[1], v);
-       return v;
+       return ((uint16_t) d[0] << 8) | (uint16_t) d[1];
 }
 
 static void
 ao_ms5607_init_chip(void) {
        uint8_t         addr;
        uint16_t        *prom;
+
        ao_ms5607_reset();
        prom = &ms5607_prom.reserved;
 
        for (addr = 0; addr <= 7; addr++)
                prom[addr] = ao_ms5607_prom_read(addr);
-       printf ("reserved: %d\n", ms5607_prom.reserved);
-       printf ("sens:     %d\n", ms5607_prom.sens);
-       printf ("off:      %d\n", ms5607_prom.off);
-       printf ("tcs:      %d\n", ms5607_prom.tcs);
-       printf ("tco:      %d\n", ms5607_prom.tco);
-       printf ("tref:     %d\n", ms5607_prom.tref);
-       printf ("tempsens: %d\n", ms5607_prom.tempsens);
-       printf ("crc:      %d\n", ms5607_prom.crc);
+       printf ("reserved: 0x%x\n", ms5607_prom.reserved);
+       printf ("sens:     0x%x\n", ms5607_prom.sens);
+       printf ("off:      0x%x\n", ms5607_prom.off);
+       printf ("tcs:      0x%x\n", ms5607_prom.tcs);
+       printf ("tco:      0x%x\n", ms5607_prom.tco);
+       printf ("tref:     0x%x\n", ms5607_prom.tref);
+       printf ("tempsens: 0x%x\n", ms5607_prom.tempsens);
+       printf ("crc:      0x%x\n", ms5607_prom.crc);
 }
 
 static uint32_t
@@ -103,7 +97,7 @@ ao_ms5607_convert(uint8_t cmd) {
        ao_spi_send(&cmd, 1, AO_MS5607_SPI_INDEX);
        ao_ms5607_stop();
 
-       ao_delay(AO_MS_TO_TICKS(10));
+       ao_delay(AO_MS_TO_TICKS(20));
 
        ao_ms5607_start();
        read = AO_MS5607_ADC_READ;