PaulStoffregen
6 年之前
+ 4
- 2
WireIMXRT.cpp
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| //printf("m=%x\n", status); | //printf("m=%x\n", status); | ||||
| // Wonder if MFSR we should maybe clear it? | // Wonder if MFSR we should maybe clear it? | ||||
| if ( port->MFSR & 0x7) { | |||||
| if ((port->MFSR & 0x7) && | |||||
| ((port->MSR & (LPI2C_MSR_BBF|LPI2C_MSR_MBF)) != (LPI2C_MSR_BBF|LPI2C_MSR_MBF))) { | |||||
| port->MCR = LPI2C_MCR_MEN | LPI2C_MCR_RTF; // clear the FIFO | port->MCR = LPI2C_MCR_MEN | LPI2C_MCR_RTF; // clear the FIFO | ||||
| port->MSR = LPI2C_MSR_PLTF | LPI2C_MSR_ALF | LPI2C_MSR_NDF | LPI2C_MSR_SDF | LPI2C_MSR_FEF; // clear flags | port->MSR = LPI2C_MSR_PLTF | LPI2C_MSR_ALF | LPI2C_MSR_NDF | LPI2C_MSR_SDF | LPI2C_MSR_FEF; // clear flags | ||||
| //printf("Clear TX Fifo %lx %lx\n", port->MSR, port->MFSR); | //printf("Clear TX Fifo %lx %lx\n", port->MSR, port->MFSR); | ||||
| //printf("MSR=%lX, MCR:%lx, MFSR=%lX\n", status, port->MCR, port->MFSR); | //printf("MSR=%lX, MCR:%lx, MFSR=%lX\n", status, port->MCR, port->MFSR); | ||||
| // Wonder if MFSR we should maybe clear it? | // Wonder if MFSR we should maybe clear it? | ||||
| if ( port->MFSR & 0x7) { | |||||
| if ((port->MFSR & 0x7) && | |||||
| ((port->MSR & (LPI2C_MSR_BBF|LPI2C_MSR_MBF)) != (LPI2C_MSR_BBF|LPI2C_MSR_MBF))) { | |||||
| port->MCR = LPI2C_MCR_MEN | LPI2C_MCR_RTF; // clear the FIFO | port->MCR = LPI2C_MCR_MEN | LPI2C_MCR_RTF; // clear the FIFO | ||||
| port->MSR = LPI2C_MSR_PLTF | LPI2C_MSR_ALF | LPI2C_MSR_NDF | LPI2C_MSR_SDF | LPI2C_MSR_FEF; // clear flags | port->MSR = LPI2C_MSR_PLTF | LPI2C_MSR_ALF | LPI2C_MSR_NDF | LPI2C_MSR_SDF | LPI2C_MSR_FEF; // clear flags | ||||
| //printf("Clear TX Fifo %lx %lx\n", port->MSR, port->MFSR); | //printf("Clear TX Fifo %lx %lx\n", port->MSR, port->MFSR); |
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