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Added a nop around the setting of the Flash CS pin. 

This increases the time the CS pin is high between sequential bus
access.
Was a problem on some Revo/AirbotF4 targets. Where the timinig was more
critical due to the flash chip used.
This commit is contained in:
atomiclama 2016-12-13 12:33:11 +00:00 committed by atomiclama
parent c14085a158
commit a282d723ca
1 changed files with 2 additions and 2 deletions
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4
src/main/drivers/flash_m25p16.c
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@ -51,8 +51,8 @@
#define JEDEC_ID_WINBOND_W25Q128 0xEF4018
#define JEDEC_ID_MACRONIX_MX25L25635E 0xC22019
#define DISABLE_M25P16 IOHi(m25p16CsPin)
#define ENABLE_M25P16 IOLo(m25p16CsPin)
#define DISABLE_M25P16 IOHi(m25p16CsPin); __NOP()
#define ENABLE_M25P16 __NOP(); IOLo(m25p16CsPin)
// The timeout we expect between being able to issue page program instructions
#define DEFAULT_TIMEOUT_MILLIS 6