5 Commits

Author	SHA1	Message	Date
Hauke Petersen	3987f528f4	cpu/stm32f0: optimizations to UART driver	2015-01-07 20:11:15 +01:00
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	010091f265	cpu/stm32f0: fixed typo uart driver defines	2014-10-16 22:17:30 +02:00
Hauke Petersen	037820d6a6	board/cpu: adjusted uart driver implementations ... for - sam3x8e - stm32f0 - stm32f4 - sam3x8e - nrf51822	2014-08-11 15:08:20 +02:00
Hauke Petersen	7904af1ac5	cpu: Initial import of stm32f0	2014-07-16 15:21:28 +02:00