everything, mostly, working

1 files changed, 0 insertions, 93 deletions

diff --git a/stm32/app/ds1820.c b/stm32/app/ds1820.c
deleted file mode 100644
index 200f4b7..0000000
--- a/stm32/app/ds1820.c
+++ /dev/null
@@ -1,93 +0,0 @@
-#include "project.h"
-
-#define DS1820_READ_SCRATCHPAD 0xbe
-#define DS1820_CONVERT_T 0x44
-
-
-#define TIMEOUT 150
-
-
-
-static unsigned extract_leu16 (uint8_t *d)
-{
-  uint32_t u;
-
-  u = (uint32_t) d[0] | (((uint32_t) d[1]) << 8);
-  return u;
-}
-
-
-
-static int extract_les16 (uint8_t *d)
-{
-  uint32_t u;
-  u = extract_leu16 (d);
-
-  if (u & 0x8000) u |= 0xffff0000;
-
-  return (int) u;
-}
-
-
-
-
-
-static int
-ds1820_read_sp (const Onewire_addr *a, unsigned page, uint8_t *buf, unsigned len)
-{
-  if (onewire_reset_and_select (a))
-    return ~0U;
-
-  onewire_write_byte (DS1820_READ_SCRATCHPAD);
-  onewire_read_bytes (buf, len);
-
-  if ((len == 9) && onewire_check_crc (buf, 8, buf[8]))
-    return ~0U;
-
-  return 0;
-}
-
-
-
-static int ds1820_convert_t (const Onewire_addr *a)
-{
-
-  if (onewire_reset_and_select (a))
-    return ~0U;
-
-  onewire_write_byte (DS1820_CONVERT_T);
-
-  if (onewire_wait_complete (TIMEOUT))
-    return ~0U;
-
-  return 0;
-}
-
-int
-ds1820_read (const Onewire_addr *a, int *temp)
-{
-  uint8_t buf[9];
-  int t;
-
-  if (ds1820_read_sp (a, 0, buf, 9))
-    return 1;
-
-  if (ds1820_convert_t (a))
-    return 1;
-
-  if (ds1820_read_sp (a, 0, buf, 9))
-    return 1;
-
-  t = extract_les16 (&buf[0]);
-
-  t <<= 4 ;
-
-  if (temp)
-    *temp = t;
-
-
-  return 0;
-}
-
-
-