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Diffstat (limited to 'contrib/firmware/angie/c/include/delay.h')
-rw-r--r-- | contrib/firmware/angie/c/include/delay.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/contrib/firmware/angie/c/include/delay.h b/contrib/firmware/angie/c/include/delay.h new file mode 100644 index 0000000..0397941 --- /dev/null +++ b/contrib/firmware/angie/c/include/delay.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/**************************************************************** + File : delay.h * + Contents : Delays handling header file for NanoXplore * + USB-JTAG ANGIE adapter hardware. * + Based on openULINK project code by: Martin Schmoelzer. * + Copyright 2023, Ahmed Errached BOUDJELIDA, NanoXplore SAS. * + <aboudjelida@nanoxplore.com> * + <ahmederrachedbjld@gmail.com> * +*****************************************************************/ + +#ifndef __DELAY_H +#define __DELAY_H + +#include <stdint.h> + +void syncdelay(uint8_t count); +void delay_5us(void); +void delay_1ms(void); +void delay_us(uint16_t delay); +void delay_ms(uint16_t delay); + +#ifndef _IFREQ +#define _IFREQ 48000 /* IFCLK frequency in kHz */ +#endif + +/* CFREQ can be any one of: 48000, 24000, or 12000 */ +#ifndef _CFREQ +#define _CFREQ 48000 /* CLKOUT frequency in kHz */ +#endif + +#if (_IFREQ < 5000) +#error "_IFREQ too small! Valid Range: 5000 to 48000..." +#endif + +#if (_IFREQ > 48000) +#error "_IFREQ too large! Valid Range: 5000 to 48000..." +#endif + +#if (_CFREQ != 48000) +#if (_CFREQ != 24000) +#if (_CFREQ != 12000) +#error "_CFREQ invalid! Valid values: 48000, 24000, 12000..." +#endif +#endif +#endif + +/* Synchronization Delay formula: see TRM section 15-14 */ +#define _SCYCL (3 * (_CFREQ) + 5 * (_IFREQ) - 1) / (2 * (_IFREQ)) +#endif |