Mercurial > public > mk2
changeset 284:908d0013727e
115200 baud bootloader tested and debugged
| author | heinrichsweikamp |
|---|---|
| date | Tue, 19 Apr 2011 21:48:34 +0200 |
| parents | 4ec488f046f4 |
| children | 8874b6cd8f36 |
| files | code_part1/OSTC_code_asm_part1/eeprom_rs232.asm |
| diffstat | 1 files changed, 19 insertions(+), 20 deletions(-) [+] |
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--- a/code_part1/OSTC_code_asm_part1/eeprom_rs232.asm Tue Apr 19 19:31:16 2011 +0200 +++ b/code_part1/OSTC_code_asm_part1/eeprom_rs232.asm Tue Apr 19 21:48:34 2011 +0200 @@ -201,18 +201,30 @@ uart_115k_bootloader: bcf PIE1,RCIE ; disable interrupt for RS232 - bcf RCSTA,CREN ; Clear receiver status - bsf RCSTA,CREN - bcf PIR1,RCIF ; clear flag +; bcf PIR1,RCIF ; clear flag call PLED_ClearScreen ; Clear screen movlw color_red call PLED_set_color ; Set to Red DISPLAYTEXTH d'302' ; Bootloader - WAITMS d'250' + movlw d'4' ; one second + movwf uart1_temp +uart_115k_bootloader0: + btfsc PIR1,RCIF ; New byte in UART? + bra uart_115k_bootloader1 ; Yes, Check if 0xC1 WAITMS d'250' - WAITMS d'50' - btfss PIR1,RCIF ; New byte in UART? - bra uart_115k_bootloader2 ; No, Abort + decfsz uart1_temp,F + bra uart_115k_bootloader0 +uart_115k_bootloader2: + DISPLAYTEXTH d'304' ; Aborted! + movlw d'8' ; Two seconds + movwf uart1_temp +uart_115k_bootloader3: + WAITMS d'250' + decfsz uart1_temp,F + bra uart_115k_bootloader3 + goto restart + +uart_115k_bootloader1: movlw 0xC1 cpfseq RCREG ; 115200Baud Bootloader request? bra uart_115k_bootloader2 ; No, Abort @@ -220,16 +232,3 @@ clrf INTCON ; Interrupts disabled bcf PIR1,RCIF ; clear flag goto 0x17F56 ; Enter straight into bootloader. Good luck! -uart_115k_bootloader2: - DISPLAYTEXTH d'304' ; Aborted! - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - WAITMS d'250' - goto restart - - \ No newline at end of file