Revision 6
some more advances in func 1
| i8254.h | ||
|---|---|---|
| 35 | 35 |
#define TIMER_LSB BIT(4) /**< @brief Initialize Counter LSB only */ |
| 36 | 36 |
#define TIMER_MSB BIT(5) /**< @brief Initialize Counter MSB only */ |
| 37 | 37 |
#define TIMER_LSB_MSB (TIMER_LSB | TIMER_MSB) /**< @brief Initialize LSB first and MSB afterwards */ |
| 38 |
#define TIMER_INMODE_MASK 0x30 |
|
| 39 |
#define TIMER_INMODE_POS 4 |
|
| 38 | 40 |
|
| 39 | 41 |
/* Operating mode: bits 3, 2 and 1 */ |
| 40 | 42 |
|
| 41 | 43 |
#define TIMER_SQR_WAVE (BIT(2) | BIT(1)) /**< @brief Mode 3: square wave generator */ |
| 42 | 44 |
#define TIMER_RATE_GEN BIT(2) /**< @brief Mode 2: rate generator */ |
| 45 |
#define TIMER_MODE_MASK 0x0e /**< @brief Mask for mode */ |
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| 46 |
#define TIMER_MODE_POS 1 /**< @brief Position of smallest bit from mode */ |
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| 43 | 47 |
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| 44 | 48 |
/* Counting mode: bit 0 */ |
| 45 | 49 |
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