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Use proper SPI timing

Thomas Buck 8 years ago
parent
8f26f53efa
commit
b563d80ab0
1 changed files with 6 additions and 3 deletions
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  1. 6
    3
      include/arm/spi.h

+ 6
- 3
include/arm/spi.h View File

35 
 #define GDO_0 gpioGet(25)
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 #define GDO_0 gpioGet(25)
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 #define GDO_dir gpioDir(25, DIR_INPUT)
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 #define GDO_dir gpioDir(25, DIR_INPUT)
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-#include "timer.h"
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-
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-#define NOP() delay_us(1) // could be 62.5ns
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+#define NOP() __asm__ __volatile__("nop\n\t" \
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+                                   "nop\n\t" \
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+                                   "nop\n\t" \
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+                                   "nop\n\t" \
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+                                   "nop\n\t" \
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+                                   "nop\n\t")
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 #endif
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 #endif
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