X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFETMCPCAN.py;fp=client%2FGoodFETMCPCAN.py;h=165d972ce0150bf3b76a3d881899090e2690df5c;hp=b75c034ec380425987369b69a41fe8c69dae09fa;hb=1071b42a0f69b1539ac3d0da160fc8f74da97b90;hpb=343e4e97f563ce3a61396f7a24593c6c0940f361 diff --git a/client/GoodFETMCPCAN.py b/client/GoodFETMCPCAN.py index b75c034..165d972 100644 --- a/client/GoodFETMCPCAN.py +++ b/client/GoodFETMCPCAN.py @@ -32,8 +32,11 @@ class GoodFETMCPCAN(GoodFETSPI): # packets. It can be manually disabled later. self.poke8(0x60,0xFF); #TODO Does this have any unpleasant side effects? - #Set the default rate of 125kHz. - self.MCPsetrate(125); + #Set the default rate. + self.MCPsetrate(); + + #Array of supported rates. + MCPrates=[100,125,250,500,1000]; def MCPsetrate(self,rate=125): """Sets the data rate in kHz.""" @@ -79,18 +82,21 @@ class GoodFETMCPCAN(GoodFETSPI): CNF1=0x04; CNF2=0xB8; CNF3=0x05; - elif rate==500: - #500 kHz, 20 TQ - CNF1=0x00; - CNF2=0xBA; - CNF3=0x07; - pass; elif rate==100: #100 kHz, 20 TQ CNF1=0x04; CNF2=0xBA; CNF3=0x07; - pass; + elif rate==250: + #256 kHz, 20 TQ + CNF1=0x01; + CNF2=0xBA; + CNF3=0x07; + elif rate==500: + #500 kHz, 20 TQ + CNF1=0x00; + CNF2=0xBA; + CNF3=0x07; elif rate==1000: #1,000 kHz, 10 TQ CNF1=0x00; @@ -98,7 +104,7 @@ class GoodFETMCPCAN(GoodFETSPI): CNF3=0x02; print "WARNING: Because of chip errata, this probably won't work." else: - print "Given unsupported rate of %i kHz."; + print "Given unsupported rate of %i kHz." % rate; print "Defaulting to 125kHz."; CNF1=0x04; CNF2=0xB8;