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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-11-12 06:24:01 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-11-12 06:24:01 +0000 |
| commit | d41cd9a41aca81eaa21e65e6c53672fe604fa3d5 (patch) | |
| tree | 6863f09655ddb2a4faea8cb009fb688ef38f7509 /Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h | |
| parent | 50390867e761f9cd92882d9f43db8593600fa61a (diff) | |
| download | lufa-d41cd9a41aca81eaa21e65e6c53672fe604fa3d5.tar.gz lufa-d41cd9a41aca81eaa21e65e6c53672fe604fa3d5.tar.bz2 lufa-d41cd9a41aca81eaa21e65e6c53672fe604fa3d5.zip | |
Fixed PDI/TPI programming speed of ~250KHz in the AVRISP-MKII Clone project, instead of the desired 500KHz.
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h index c467298c6..aae4c5b53 100644 --- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h +++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h @@ -59,8 +59,11 @@ /** Low level device command to issue an extended FLASH address, for devices with other 128KB of FLASH. */ #define LOAD_EXTENDED_ADDRESS_CMD 0x4D - /** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver */ - #define TIMER_COMP(freq) ((((F_CPU / 8) / freq) / 2) - 1) + /** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver. */ + #define TIMER_COMP(freq) (((F_CPU / 8) / 2 / freq) - 1) + + /** ISP rescue clock speed, for clocking targets with incorrectly set fuses. */ + #define ISP_RESCUE_CLOCK_SPEED 4000000 /* External Variables: */ extern bool HardwareSPIMode; |