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ST10F296 Fiches technique(PDF) 77 Page - STMicroelectronics |
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ST10F296 Fiches technique(HTML) 77 Page - STMicroelectronics |
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77 / 346 page ![]() Obsolete Product(s) - Obsolete Product(s) ST10F296E The bootstrap loader 77/346 Figure 11. Baud rate deviation between the host and ST10F296E The minimum baud rate (BLow in Figure 11) is determined by the maximum count capacity of Timer T6, when measuring the zero byte, i.e. it depends on the CPU clock. Using the maximum T6 count as 216 in the formula, the minimum baud rate can be calculated. The lowest standard baud rate in this case is 1200 Baud. Baud rates below BLow cause T6 to overflow. In this case ASC0 cannot be initialized properly. The maximum baud rate (BHigh in Figure 11) is the highest baud rate where the deviation does not exceed the limit, i.e. all baud rates between BLow and BHigh are below the deviation limit. The maximum standard baud rate that fulfills this requirement is 19200 Baud. Higher baud rates, however, may be used as long as the actual deviation does not exceed the limit. The baud rate marked ‘I’ in Figure 11 may violate the deviation limit, while the higher baud rate, marked ‘II’, in Figure 11 stays well below it. This depends on the host interface. BLow 2.5% FB BHigh I II BHOST Obsolete Product(s) - Obsolete Product(s) |
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