gitbot/qmk_firmware
0
0
Fork 0
mirror of https://github.com/qmk/qmk_firmware.git synced 2025-06-05 16:02:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

Bit-bang ISP in the AVRISP-MKII clone project needs to set MOSI pin to the MSB of the data byte on startup, not the LSB.

Browse Source
This commit is contained in:
Dean Camera 2011-11-29 11:30:25 +00:00
parent 70f3d8e933
commit 24ca2d49fe
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
View File

@ -243,7 +243,8 @@ uint8_t ISPTarget_TransferSoftSPIByte(const uint8_t Byte)
SoftSPI_Data = Byte;
SoftSPI_BitsRemaining = 8;
if (SoftSPI_Data & 0x01)
/* Set initial MOSI pin state according to the byte to be transferred */
if (SoftSPI_Data & (1 << 7))
PORTB |= (1 << 2);
else
PORTB &= ~(1 << 2);