5 Commits

Author	SHA1	Message	Date
Hauke Petersen	e7fbaf3815	cpu: removed NAKED attribute from ISRs ... - removed the __attribute__((naked)) from ISRs - removed ISR_ENTER() and ISR_EXIT() macros Rationale: Cortex-Mx MCUs save registers R0-R4 automatically on calling ISRs. The naked attribute tells the compiler not to save any other registers. This is fine, as long as the code in the ISR is not nested. If nested, it will use also R4 and R5, which will then lead to currupted registers on exit of the ISR. Removing the naked will fix this.	2014-10-30 19:33:32 +01:00
Hauke Petersen	616ff64929	Merge pull request #1771 from PeterKietzmann/correct_stm32f4_spi_return_values ... cpu/stm32f4: Changed SPI return values to API definitions	2014-10-24 15:37:22 +02:00
Fabian Nack	45b3da9be7	cpu - multiple: adapt spi drivers to interface extension	2014-10-16 17:47:10 +02:00
PeterKietzmann	4da6329684	cpu/stm32f4 changed SPI-return values to API defs	2014-10-07 12:16:37 +02:00
PeterKietzmann	d481af752f	initial import of stm32f4discovery spi low-level driver	2014-09-30 13:18:27 +02:00