Mplab C30 Compiler -

INTERRUPT(_U1RXInterrupt, 6) while (U1STAbits.URXDA) c30_cbuf_put(&uart_rx, U1RXREG);

// Usage: INTERRUPT(_U1RXInterrupt, 6) /* code */ mplab c30 compiler

// ------------------------------------------------------------ // 1. SAFE BANKING MACROS (avoid manual BANKED/FAR typos) // ------------------------------------------------------------ #define BANKED_NEAR ((near)) // Accessible without PSV #define BANKED_FAR attribute ((far)) // Any RAM, slower access #define Y_DATA_SPACE attribute ((space(ymemory))) // For DSP #define AUTO_PSV attribute ((space(auto_psv))) // const in program memory INTERRUPT(_U1RXInterrupt, 6) while (U1STAbits

// Interrupt-safe put (disables interrupts) inline int c30_cbuf_put(c30_cbuf_t *cb, unsigned char data) unsigned int next_head = (cb->head + 1) & cb->mask; if (next_head == cb->tail) return -1; // full 6) while (U1STAbits.URXDA) c30_cbuf_put(&uart_rx

A for C30 would address its most common real-world pain points: poor RAM banking management , lack of built-in circular buffer support for DSP , and verbose ISR syntax .

#endif // C30_UTILS_H #include "c30_utils.h" // Force buffer into Y data space for faster DSP-style UART processing unsigned char Y_DATA_SPACE uart_rx_buf[64]; // 64 bytes, must be power of two c30_cbuf_t uart_rx;

int main() init_uart_buffer(); unsigned char ch; while (1) if (c30_cbuf_get(&uart_rx, &ch) == 0) // process byte