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Read size for MAX6675 from sizeof(max6675_temp)

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This commit is contained in:
Scott Lahteine 2016-04-19 19:57:32 -07:00
parent ac69fad96d
commit 8a2587f017
1 changed files with 3 additions and 5 deletions
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8
Marlin/temperature.cpp
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@ -1219,13 +1219,11 @@ void disable_all_heaters() {
#define MAX6675_HEAT_INTERVAL 250u
#if ENABLED(MAX6675_IS_MAX31855)
unsigned long max6675_temp = 2000;
#define MAX6675_READ_BYTES 4
uint32_t max6675_temp = 2000;
#define MAX6675_ERROR_MASK 7
#define MAX6675_DISCARD_BITS 18
#else
unsigned int max6675_temp = 2000;
#define MAX6675_READ_BYTES 2
uint16_t max6675_temp = 2000;
#define MAX6675_ERROR_MASK 4
#define MAX6675_DISCARD_BITS 3
#endif
@ -1257,7 +1255,7 @@ void disable_all_heaters() {
// Read a big-endian temperature value
max6675_temp = 0;
for (uint8_t i = MAX6675_READ_BYTES; i--;) {
for (uint8_t i = sizeof(max6675_temp); i--;) {
SPDR = 0;
for (;!TEST(SPSR, SPIF););
max6675_temp |= SPDR;