diff options
| author | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-12-09 06:10:56 +0000 |
|---|---|---|
| committer | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-12-09 06:10:56 +0000 |
| commit | ceb643380b02d0d8289e3ad75a495123414ace8c (patch) | |
| tree | cf37628d2b07d7cebc2a4f04d5f8ea2488eb9d57 /openpicc/application/tc_cdiv.c | |
| parent | bdc39aadd1a26d7709ff15722be90c016be2057a (diff) | |
Prevent late frames by spinning in SSC CP0 IRQ till end of short frame reception
Fix tc_cdiv_set_divider. again.
Reverse the polarity! (of the ssc transmit clock)
git-svn-id: https://svn.openpcd.org:2342/trunk@381 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'openpicc/application/tc_cdiv.c')
| -rw-r--r-- | openpicc/application/tc_cdiv.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/openpicc/application/tc_cdiv.c b/openpicc/application/tc_cdiv.c index d389214..08b8efe 100644 --- a/openpicc/application/tc_cdiv.c +++ b/openpicc/application/tc_cdiv.c @@ -27,11 +27,12 @@ #include "openpicc.h" #include "tc_cdiv.h" +#include "led.h" AT91PS_TCB tcb = AT91C_BASE_TCB; /* set carrier divider to a specific */ -void tc_cdiv_set_divider(u_int16_t div) +void __ramfunc tc_cdiv_set_divider(u_int16_t div) { tcb->TCB_TC0.TC_RC = div; @@ -43,11 +44,13 @@ void tc_cdiv_set_divider(u_int16_t div) * In order to not lose phase information when doing that we'll busy wait till CV is * zero modulo the new RC.*/ /*tc_cdiv_phase_add(tcb->TCB_TC0.TC_RC-(tcb->TCB_TC0.TC_CV%tcb->TCB_TC0.TC_RC));*/ - if(tcb->TCB_TC0.TC_CV > div) while(tcb->TCB_TC0.TC_CV % div != 0); - tcb->TCB_TC0.TC_CCR = AT91C_TC_SWTRG; + if(tcb->TCB_TC0.TC_CV > div) { + while(tcb->TCB_TC0.TC_CV % div != 0); + tcb->TCB_TC0.TC_CCR = AT91C_TC_SWTRG; + } } -void tc_cdiv_phase_add(int16_t inc) +void __ramfunc tc_cdiv_phase_add(int16_t inc) { tcb->TCB_TC0.TC_RA = (tcb->TCB_TC0.TC_RA + inc) % tcb->TCB_TC0.TC_RC; tcb->TCB_TC0.TC_RB = (tcb->TCB_TC0.TC_RB + inc) % tcb->TCB_TC0.TC_RC; |